google-api-ruby-client/google-api-client/generated/google/apis/compute_alpha/classes.rb

# Copyright 2015 Google Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

require 'date'
require 'google/apis/core/base_service'
require 'google/apis/core/json_representation'
require 'google/apis/core/hashable'
require 'google/apis/errors'

module Google
  module Apis
    module ComputeAlpha
      
      # A specification of the type and number of accelerator cards attached to the
      # instance.
      class AcceleratorConfig
        include Google::Apis::Core::Hashable
      
        # The number of the guest accelerator cards exposed to this instance.
        # Corresponds to the JSON property `acceleratorCount`
        # @return [Fixnum]
        attr_accessor :accelerator_count
      
        # Full or partial URL of the accelerator type resource to attach to this
        # instance. For example: projects/my-project/zones/us-central1-c/
        # acceleratorTypes/nvidia-tesla-p100 If you are creating an instance template,
        # specify only the accelerator name. See GPUs on Compute Engine for a full list
        # of accelerator types.
        # Corresponds to the JSON property `acceleratorType`
        # @return [String]
        attr_accessor :accelerator_type
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @accelerator_count = args[:accelerator_count] if args.key?(:accelerator_count)
          @accelerator_type = args[:accelerator_type] if args.key?(:accelerator_type)
        end
      end
      
      # Represents an Accelerator Type resource.
      # Google Cloud Platform provides graphics processing units (accelerators) that
      # you can add to VM instances to improve or accelerate performance when working
      # with intensive workloads. For more information, read GPUs on Compute Engine. (=
      # = resource_for `$api_version`.acceleratorTypes ==)
      class AcceleratorType
        include Google::Apis::Core::Hashable
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # Deprecation status for a public resource.
        # Corresponds to the JSON property `deprecated`
        # @return [Google::Apis::ComputeAlpha::DeprecationStatus]
        attr_accessor :deprecated
      
        # [Output Only] An optional textual description of the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] The type of the resource. Always compute#acceleratorType for
        # accelerator types.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] Maximum number of accelerator cards allowed per instance.
        # Corresponds to the JSON property `maximumCardsPerInstance`
        # @return [Fixnum]
        attr_accessor :maximum_cards_per_instance
      
        # [Output Only] Name of the resource.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # [Output Only] Server-defined, fully qualified URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource's resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # [Output Only] The name of the zone where the accelerator type resides, such as
        # us-central1-a. You must specify this field as part of the HTTP request URL. It
        # is not settable as a field in the request body.
        # Corresponds to the JSON property `zone`
        # @return [String]
        attr_accessor :zone
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @deprecated = args[:deprecated] if args.key?(:deprecated)
          @description = args[:description] if args.key?(:description)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @maximum_cards_per_instance = args[:maximum_cards_per_instance] if args.key?(:maximum_cards_per_instance)
          @name = args[:name] if args.key?(:name)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @zone = args[:zone] if args.key?(:zone)
        end
      end
      
      # 
      class AcceleratorTypeAggregatedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of AcceleratorTypesScopedList resources.
        # Corresponds to the JSON property `items`
        # @return [Hash<String,Google::Apis::ComputeAlpha::AcceleratorTypesScopedList>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#acceleratorTypeAggregatedList
        # for aggregated lists of accelerator types.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Unreachable resources.
        # Corresponds to the JSON property `unreachables`
        # @return [Array<String>]
        attr_accessor :unreachables
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::AcceleratorTypeAggregatedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @unreachables = args[:unreachables] if args.key?(:unreachables)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::AcceleratorTypeAggregatedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Contains a list of accelerator types.
      class AcceleratorTypeList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of AcceleratorType resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::AcceleratorType>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#acceleratorTypeList for lists
        # of accelerator types.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::AcceleratorTypeList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::AcceleratorTypeList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class AcceleratorTypesScopedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] A list of accelerator types contained in this scope.
        # Corresponds to the JSON property `acceleratorTypes`
        # @return [Array<Google::Apis::ComputeAlpha::AcceleratorType>]
        attr_accessor :accelerator_types
      
        # [Output Only] An informational warning that appears when the accelerator types
        # list is empty.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::AcceleratorTypesScopedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @accelerator_types = args[:accelerator_types] if args.key?(:accelerator_types)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] An informational warning that appears when the accelerator types
        # list is empty.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::AcceleratorTypesScopedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # An access configuration attached to an instance's network interface. Only one
      # access config per instance is supported.
      class AccessConfig
        include Google::Apis::Core::Hashable
      
        # [Output Only] The first IPv6 address of the external IPv6 range associated
        # with this instance, prefix length is stored in externalIpv6PrefixLength in
        # ipv6AccessConfig. The field is output only, an IPv6 address from a subnetwork
        # associated with the instance will be allocated dynamically.
        # Corresponds to the JSON property `externalIpv6`
        # @return [String]
        attr_accessor :external_ipv6
      
        # [Output Only] The prefix length of the external IPv6 range.
        # Corresponds to the JSON property `externalIpv6PrefixLength`
        # @return [Fixnum]
        attr_accessor :external_ipv6_prefix_length
      
        # [Output Only] Type of the resource. Always compute#accessConfig for access
        # configs.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # The name of this access configuration. The default and recommended name is
        # External NAT, but you can use any arbitrary string, such as My external IP or
        # Network Access.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # An external IP address associated with this instance. Specify an unused static
        # external IP address available to the project or leave this field undefined to
        # use an IP from a shared ephemeral IP address pool. If you specify a static
        # external IP address, it must live in the same region as the zone of the
        # instance.
        # Corresponds to the JSON property `natIP`
        # @return [String]
        attr_accessor :nat_ip
      
        # This signifies the networking tier used for configuring this access
        # configuration and can only take the following values: PREMIUM, STANDARD.
        # If an AccessConfig is specified without a valid external IP address, an
        # ephemeral IP will be created with this networkTier.
        # If an AccessConfig with a valid external IP address is specified, it must
        # match that of the networkTier associated with the Address resource owning that
        # IP.
        # Corresponds to the JSON property `networkTier`
        # @return [String]
        attr_accessor :network_tier
      
        # [Output Only] The public DNS domain name for the instance.
        # Corresponds to the JSON property `publicDnsName`
        # @return [String]
        attr_accessor :public_dns_name
      
        # The DNS domain name for the public PTR record. You can set this field only if
        # the `setPublicPtr` field is enabled.
        # Corresponds to the JSON property `publicPtrDomainName`
        # @return [String]
        attr_accessor :public_ptr_domain_name
      
        # Specifies whether a public DNS 'A' record should be created for the external
        # IP address of this access configuration.
        # Corresponds to the JSON property `setPublicDns`
        # @return [Boolean]
        attr_accessor :set_public_dns
        alias_method :set_public_dns?, :set_public_dns
      
        # Specifies whether a public DNS 'PTR' record should be created to map the
        # external IP address of the instance to a DNS domain name.
        # Corresponds to the JSON property `setPublicPtr`
        # @return [Boolean]
        attr_accessor :set_public_ptr
        alias_method :set_public_ptr?, :set_public_ptr
      
        # The type of configuration. The default and only option is ONE_TO_ONE_NAT.
        # Corresponds to the JSON property `type`
        # @return [String]
        attr_accessor :type
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @external_ipv6 = args[:external_ipv6] if args.key?(:external_ipv6)
          @external_ipv6_prefix_length = args[:external_ipv6_prefix_length] if args.key?(:external_ipv6_prefix_length)
          @kind = args[:kind] if args.key?(:kind)
          @name = args[:name] if args.key?(:name)
          @nat_ip = args[:nat_ip] if args.key?(:nat_ip)
          @network_tier = args[:network_tier] if args.key?(:network_tier)
          @public_dns_name = args[:public_dns_name] if args.key?(:public_dns_name)
          @public_ptr_domain_name = args[:public_ptr_domain_name] if args.key?(:public_ptr_domain_name)
          @set_public_dns = args[:set_public_dns] if args.key?(:set_public_dns)
          @set_public_ptr = args[:set_public_ptr] if args.key?(:set_public_ptr)
          @type = args[:type] if args.key?(:type)
        end
      end
      
      # Use global external addresses for GFE-based external HTTP(S) load balancers in
      # Premium Tier.
      # Use global internal addresses for reserved peering network range.
      # Use regional external addresses for the following resources:
      # - External IP addresses for VM instances - Regional external forwarding rules -
      # Cloud NAT external IP addresses - GFE based LBs in Standard Tier - Network
      # LBs in Premium or Standard Tier - Cloud VPN gateways (both Classic and HA)
      # Use regional internal IP addresses for subnet IP ranges (primary and secondary)
      # . This includes:
      # - Internal IP addresses for VM instances - Alias IP ranges of VM instances (/
      # 32 only) - Regional internal forwarding rules - Internal TCP/UDP load balancer
      # addresses - Internal HTTP(S) load balancer addresses - Cloud DNS inbound
      # forwarding IP addresses
      # For more information, read reserved IP address.
      # (== resource_for `$api_version`.addresses ==) (== resource_for `$api_version`.
      # globalAddresses ==)
      class Address
        include Google::Apis::Core::Hashable
      
        # The static IP address represented by this resource.
        # Corresponds to the JSON property `address`
        # @return [String]
        attr_accessor :address
      
        # The type of address to reserve, either INTERNAL or EXTERNAL. If unspecified,
        # defaults to EXTERNAL.
        # Corresponds to the JSON property `addressType`
        # @return [String]
        attr_accessor :address_type
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this field when you create
        # the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # The IP version that will be used by this address. Valid options are IPV4 or
        # IPV6. This can only be specified for a global address.
        # Corresponds to the JSON property `ipVersion`
        # @return [String]
        attr_accessor :ip_version
      
        # [Output Only] Type of the resource. Always compute#address for addresses.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # A fingerprint for the labels being applied to this Address, which is
        # essentially a hash of the labels set used for optimistic locking. The
        # fingerprint is initially generated by Compute Engine and changes after every
        # request to modify or update labels. You must always provide an up-to-date
        # fingerprint hash in order to update or change labels, otherwise the request
        # will fail with error 412 conditionNotMet.
        # To see the latest fingerprint, make a get() request to retrieve an Address.
        # Corresponds to the JSON property `labelFingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :label_fingerprint
      
        # Labels for this resource. These can only be added or modified by the setLabels
        # method. Each label key/value pair must comply with RFC1035. Label values may
        # be empty.
        # Corresponds to the JSON property `labels`
        # @return [Hash<String,String>]
        attr_accessor :labels
      
        # Name of the resource. Provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?`. The first character must be a lowercase letter, and all
        # following characters (except for the last character) must be a dash, lowercase
        # letter, or digit. The last character must be a lowercase letter or digit.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # The URL of the network in which to reserve the address. This field can only be
        # used with INTERNAL type with the VPC_PEERING purpose.
        # Corresponds to the JSON property `network`
        # @return [String]
        attr_accessor :network
      
        # This signifies the networking tier used for configuring this address and can
        # only take the following values: PREMIUM or STANDARD. Global forwarding rules
        # can only be Premium Tier. Regional forwarding rules can be either Premium or
        # Standard Tier. Standard Tier addresses applied to regional forwarding rules
        # can be used with any external load balancer. Regional forwarding rules in
        # Premium Tier can only be used with a network load balancer.
        # If this field is not specified, it is assumed to be PREMIUM.
        # Corresponds to the JSON property `networkTier`
        # @return [String]
        attr_accessor :network_tier
      
        # The prefix length if the resource reprensents an IP range.
        # Corresponds to the JSON property `prefixLength`
        # @return [Fixnum]
        attr_accessor :prefix_length
      
        # The purpose of this resource, which can be one of the following values:
        # - `GCE_ENDPOINT` for addresses that are used by VM instances, alias IP ranges,
        # internal load balancers, and similar resources.
        # - `DNS_RESOLVER` for a DNS resolver address in a subnetwork
        # - `VPC_PEERING` for addresses that are reserved for VPC peer networks.
        # - `NAT_AUTO` for addresses that are external IP addresses automatically
        # reserved for Cloud NAT.
        # - `IPSEC_INTERCONNECT` for addresses created from a private IP range that are
        # reserved for a VLAN attachment in an IPsec encrypted Interconnect
        # configuration. These addresses are regional resources.
        # Corresponds to the JSON property `purpose`
        # @return [String]
        attr_accessor :purpose
      
        # [Output Only] The URL of the region where the regional address resides. This
        # field is not applicable to global addresses. You must specify this field as
        # part of the HTTP request URL.
        # Corresponds to the JSON property `region`
        # @return [String]
        attr_accessor :region
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # [Output Only] The status of the address, which can be one of RESERVING,
        # RESERVED, or IN_USE. An address that is RESERVING is currently in the process
        # of being reserved. A RESERVED address is currently reserved and available to
        # use. An IN_USE address is currently being used by another resource and is not
        # available.
        # Corresponds to the JSON property `status`
        # @return [String]
        attr_accessor :status
      
        # The URL of the subnetwork in which to reserve the address. If an IP address is
        # specified, it must be within the subnetwork's IP range. This field can only be
        # used with INTERNAL type with a GCE_ENDPOINT or DNS_RESOLVER purpose.
        # Corresponds to the JSON property `subnetwork`
        # @return [String]
        attr_accessor :subnetwork
      
        # [Output Only] The URLs of the resources that are using this address.
        # Corresponds to the JSON property `users`
        # @return [Array<String>]
        attr_accessor :users
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @address = args[:address] if args.key?(:address)
          @address_type = args[:address_type] if args.key?(:address_type)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @id = args[:id] if args.key?(:id)
          @ip_version = args[:ip_version] if args.key?(:ip_version)
          @kind = args[:kind] if args.key?(:kind)
          @label_fingerprint = args[:label_fingerprint] if args.key?(:label_fingerprint)
          @labels = args[:labels] if args.key?(:labels)
          @name = args[:name] if args.key?(:name)
          @network = args[:network] if args.key?(:network)
          @network_tier = args[:network_tier] if args.key?(:network_tier)
          @prefix_length = args[:prefix_length] if args.key?(:prefix_length)
          @purpose = args[:purpose] if args.key?(:purpose)
          @region = args[:region] if args.key?(:region)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @status = args[:status] if args.key?(:status)
          @subnetwork = args[:subnetwork] if args.key?(:subnetwork)
          @users = args[:users] if args.key?(:users)
        end
      end
      
      # 
      class AddressAggregatedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of AddressesScopedList resources.
        # Corresponds to the JSON property `items`
        # @return [Hash<String,Google::Apis::ComputeAlpha::AddressesScopedList>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#addressAggregatedList for
        # aggregated lists of addresses.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Unreachable resources.
        # Corresponds to the JSON property `unreachables`
        # @return [Array<String>]
        attr_accessor :unreachables
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::AddressAggregatedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @unreachables = args[:unreachables] if args.key?(:unreachables)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::AddressAggregatedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Contains a list of addresses.
      class AddressList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of Address resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::Address>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#addressList for lists of
        # addresses.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::AddressList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::AddressList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class AddressesScopedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] A list of addresses contained in this scope.
        # Corresponds to the JSON property `addresses`
        # @return [Array<Google::Apis::ComputeAlpha::Address>]
        attr_accessor :addresses
      
        # [Output Only] Informational warning which replaces the list of addresses when
        # the list is empty.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::AddressesScopedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @addresses = args[:addresses] if args.key?(:addresses)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning which replaces the list of addresses when
        # the list is empty.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::AddressesScopedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Specifies options for controlling advanced machine features. Options that
      # would traditionally be configured in a BIOS belong here. Features that require
      # operating system support may have corresponding entries in the GuestOsFeatures
      # of an Image (e.g., whether or not the OS in the Image supports nested
      # virtualization being enabled or disabled).
      class AdvancedMachineFeatures
        include Google::Apis::Core::Hashable
      
        # Whether to enable nested virtualization or not (default is false).
        # Corresponds to the JSON property `enableNestedVirtualization`
        # @return [Boolean]
        attr_accessor :enable_nested_virtualization
        alias_method :enable_nested_virtualization?, :enable_nested_virtualization
      
        # The number of threads per physical core. To disable simultaneous
        # multithreading (SMT) set this to 1. If unset, the maximum number of threads
        # supported per core by the underlying processor is assumed.
        # Corresponds to the JSON property `threadsPerCore`
        # @return [Fixnum]
        attr_accessor :threads_per_core
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @enable_nested_virtualization = args[:enable_nested_virtualization] if args.key?(:enable_nested_virtualization)
          @threads_per_core = args[:threads_per_core] if args.key?(:threads_per_core)
        end
      end
      
      # An alias IP range attached to an instance's network interface.
      class AliasIpRange
        include Google::Apis::Core::Hashable
      
        # The IP alias ranges to allocate for this interface. This IP CIDR range must
        # belong to the specified subnetwork and cannot contain IP addresses reserved by
        # system or used by other network interfaces. This range may be a single IP
        # address (such as 10.2.3.4), a netmask (such as /24) or a CIDR-formatted string
        # (such as 10.1.2.0/24).
        # Corresponds to the JSON property `ipCidrRange`
        # @return [String]
        attr_accessor :ip_cidr_range
      
        # The name of a subnetwork secondary IP range from which to allocate an IP alias
        # range. If not specified, the primary range of the subnetwork is used.
        # Corresponds to the JSON property `subnetworkRangeName`
        # @return [String]
        attr_accessor :subnetwork_range_name
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @ip_cidr_range = args[:ip_cidr_range] if args.key?(:ip_cidr_range)
          @subnetwork_range_name = args[:subnetwork_range_name] if args.key?(:subnetwork_range_name)
        end
      end
      
      # 
      class AllocationShareSettings
        include Google::Apis::Core::Hashable
      
        # Type of sharing for this shared-reservation
        # Corresponds to the JSON property `shareType`
        # @return [String]
        attr_accessor :share_type
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @share_type = args[:share_type] if args.key?(:share_type)
        end
      end
      
      # 
      class AllocationSpecificSkuAllocationAllocatedInstancePropertiesReservedDisk
        include Google::Apis::Core::Hashable
      
        # Specifies the size of the disk in base-2 GB.
        # Corresponds to the JSON property `diskSizeGb`
        # @return [Fixnum]
        attr_accessor :disk_size_gb
      
        # Specifies the disk interface to use for attaching this disk, which is either
        # SCSI or NVME. The default is SCSI. For performance characteristics of SCSI
        # over NVMe, see Local SSD performance.
        # Corresponds to the JSON property `interface`
        # @return [String]
        attr_accessor :interface
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @disk_size_gb = args[:disk_size_gb] if args.key?(:disk_size_gb)
          @interface = args[:interface] if args.key?(:interface)
        end
      end
      
      # Properties of the SKU instances being reserved. Next ID: 9
      class AllocationSpecificSkuAllocationReservedInstanceProperties
        include Google::Apis::Core::Hashable
      
        # Specifies accelerator type and count.
        # Corresponds to the JSON property `guestAccelerators`
        # @return [Array<Google::Apis::ComputeAlpha::AcceleratorConfig>]
        attr_accessor :guest_accelerators
      
        # Specifies amount of local ssd to reserve with each instance. The type of disk
        # is local-ssd.
        # Corresponds to the JSON property `localSsds`
        # @return [Array<Google::Apis::ComputeAlpha::AllocationSpecificSkuAllocationAllocatedInstancePropertiesReservedDisk>]
        attr_accessor :local_ssds
      
        # An opaque location hint used to place the allocation close to other resources.
        # This field is for use by internal tools that use the public API.
        # Corresponds to the JSON property `locationHint`
        # @return [String]
        attr_accessor :location_hint
      
        # Specifies type of machine (name only) which has fixed number of vCPUs and
        # fixed amount of memory. This also includes specifying custom machine type
        # following custom-NUMBER_OF_CPUS-AMOUNT_OF_MEMORY pattern.
        # Corresponds to the JSON property `machineType`
        # @return [String]
        attr_accessor :machine_type
      
        # Specifies the number of hours after reservation creation where instances using
        # the reservation won't be scheduled for maintenance.
        # Corresponds to the JSON property `maintenanceFreezeDurationHours`
        # @return [Fixnum]
        attr_accessor :maintenance_freeze_duration_hours
      
        # Specifies whether this VM may be a stable fleet VM. Setting this to "Periodic"
        # designates this VM as a Stable Fleet VM.
        # See go/stable-fleet-ug for more details.
        # Corresponds to the JSON property `maintenanceInterval`
        # @return [String]
        attr_accessor :maintenance_interval
      
        # Minimum cpu platform the reservation.
        # Corresponds to the JSON property `minCpuPlatform`
        # @return [String]
        attr_accessor :min_cpu_platform
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @guest_accelerators = args[:guest_accelerators] if args.key?(:guest_accelerators)
          @local_ssds = args[:local_ssds] if args.key?(:local_ssds)
          @location_hint = args[:location_hint] if args.key?(:location_hint)
          @machine_type = args[:machine_type] if args.key?(:machine_type)
          @maintenance_freeze_duration_hours = args[:maintenance_freeze_duration_hours] if args.key?(:maintenance_freeze_duration_hours)
          @maintenance_interval = args[:maintenance_interval] if args.key?(:maintenance_interval)
          @min_cpu_platform = args[:min_cpu_platform] if args.key?(:min_cpu_platform)
        end
      end
      
      # This reservation type allows to pre allocate specific instance configuration.
      class AllocationSpecificSkuReservation
        include Google::Apis::Core::Hashable
      
        # Specifies the number of resources that are allocated.
        # Corresponds to the JSON property `count`
        # @return [Fixnum]
        attr_accessor :count
      
        # [Output Only] Indicates how many instances are in use.
        # Corresponds to the JSON property `inUseCount`
        # @return [Fixnum]
        attr_accessor :in_use_count
      
        # Properties of the SKU instances being reserved. Next ID: 9
        # Corresponds to the JSON property `instanceProperties`
        # @return [Google::Apis::ComputeAlpha::AllocationSpecificSkuAllocationReservedInstanceProperties]
        attr_accessor :instance_properties
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @count = args[:count] if args.key?(:count)
          @in_use_count = args[:in_use_count] if args.key?(:in_use_count)
          @instance_properties = args[:instance_properties] if args.key?(:instance_properties)
        end
      end
      
      # An instance-attached disk resource.
      class AttachedDisk
        include Google::Apis::Core::Hashable
      
        # Specifies whether the disk will be auto-deleted when the instance is deleted (
        # but not when the disk is detached from the instance).
        # Corresponds to the JSON property `autoDelete`
        # @return [Boolean]
        attr_accessor :auto_delete
        alias_method :auto_delete?, :auto_delete
      
        # Indicates that this is a boot disk. The virtual machine will use the first
        # partition of the disk for its root filesystem.
        # Corresponds to the JSON property `boot`
        # @return [Boolean]
        attr_accessor :boot
        alias_method :boot?, :boot
      
        # Specifies a unique device name of your choice that is reflected into the /dev/
        # disk/by-id/google-* tree of a Linux operating system running within the
        # instance. This name can be used to reference the device for mounting, resizing,
        # and so on, from within the instance.
        # If not specified, the server chooses a default device name to apply to this
        # disk, in the form persistent-disk-x, where x is a number assigned by Google
        # Compute Engine. This field is only applicable for persistent disks.
        # Corresponds to the JSON property `deviceName`
        # @return [String]
        attr_accessor :device_name
      
        # Encrypts or decrypts a disk using a customer-supplied encryption key.
        # If you are creating a new disk, this field encrypts the new disk using an
        # encryption key that you provide. If you are attaching an existing disk that is
        # already encrypted, this field decrypts the disk using the customer-supplied
        # encryption key.
        # If you encrypt a disk using a customer-supplied key, you must provide the same
        # key again when you attempt to use this resource at a later time. For example,
        # you must provide the key when you create a snapshot or an image from the disk
        # or when you attach the disk to a virtual machine instance.
        # If you do not provide an encryption key, then the disk will be encrypted using
        # an automatically generated key and you do not need to provide a key to use the
        # disk later.
        # Instance templates do not store customer-supplied encryption keys, so you
        # cannot use your own keys to encrypt disks in a managed instance group.
        # Corresponds to the JSON property `diskEncryptionKey`
        # @return [Google::Apis::ComputeAlpha::CustomerEncryptionKey]
        attr_accessor :disk_encryption_key
      
        # The size of the disk in GB.
        # Corresponds to the JSON property `diskSizeGb`
        # @return [Fixnum]
        attr_accessor :disk_size_gb
      
        # [Input Only] Whether to force attach the regional disk even if it's currently
        # attached to another instance. If you try to force attach a zonal disk to an
        # instance, you will receive an error.
        # Corresponds to the JSON property `forceAttach`
        # @return [Boolean]
        attr_accessor :force_attach
        alias_method :force_attach?, :force_attach
      
        # A list of features to enable on the guest operating system. Applicable only
        # for bootable images. Read  Enabling guest operating system features to see a
        # list of available options.
        # Corresponds to the JSON property `guestOsFeatures`
        # @return [Array<Google::Apis::ComputeAlpha::GuestOsFeature>]
        attr_accessor :guest_os_features
      
        # [Output Only] A zero-based index to this disk, where 0 is reserved for the
        # boot disk. If you have many disks attached to an instance, each disk would
        # have a unique index number.
        # Corresponds to the JSON property `index`
        # @return [Fixnum]
        attr_accessor :index
      
        # [Input Only] Specifies the parameters for a new disk that will be created
        # alongside the new instance. Use initialization parameters to create boot disks
        # or local SSDs attached to the new instance.
        # This property is mutually exclusive with the source property; you can only
        # define one or the other, but not both.
        # Corresponds to the JSON property `initializeParams`
        # @return [Google::Apis::ComputeAlpha::AttachedDiskInitializeParams]
        attr_accessor :initialize_params
      
        # Specifies the disk interface to use for attaching this disk, which is either
        # SCSI or NVME. The default is SCSI. Persistent disks must always use SCSI and
        # the request will fail if you attempt to attach a persistent disk in any other
        # format than SCSI. Local SSDs can use either NVME or SCSI. For performance
        # characteristics of SCSI over NVMe, see Local SSD performance.
        # Corresponds to the JSON property `interface`
        # @return [String]
        attr_accessor :interface
      
        # [Output Only] Type of the resource. Always compute#attachedDisk for attached
        # disks.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] Any valid publicly visible licenses.
        # Corresponds to the JSON property `licenses`
        # @return [Array<String>]
        attr_accessor :licenses
      
        # The mode in which to attach this disk, either READ_WRITE or READ_ONLY. If not
        # specified, the default is to attach the disk in READ_WRITE mode.
        # Corresponds to the JSON property `mode`
        # @return [String]
        attr_accessor :mode
      
        # For LocalSSD disks on VM Instances in STOPPED or SUSPENDED state, this field
        # is set to PRESERVED if the LocalSSD data has been saved to a persistent
        # location by customer request. (see the discard_local_ssd option on Stop/
        # Suspend). Read-only in the api.
        # Corresponds to the JSON property `savedState`
        # @return [String]
        attr_accessor :saved_state
      
        # Initial State for shielded instance, these are public keys which are safe to
        # store in public
        # Corresponds to the JSON property `shieldedInstanceInitialState`
        # @return [Google::Apis::ComputeAlpha::InitialStateConfig]
        attr_accessor :shielded_instance_initial_state
      
        # Specifies a valid partial or full URL to an existing Persistent Disk resource.
        # When creating a new instance, one of initializeParams.sourceImage or
        # initializeParams.sourceSnapshot or disks.source is required except for local
        # SSD.
        # If desired, you can also attach existing non-root persistent disks using this
        # property. This field is only applicable for persistent disks.
        # Note that for InstanceTemplate, specify the disk name, not the URL for the
        # disk.
        # Corresponds to the JSON property `source`
        # @return [String]
        attr_accessor :source
      
        # Specifies the type of the disk, either SCRATCH or PERSISTENT. If not specified,
        # the default is PERSISTENT.
        # Corresponds to the JSON property `type`
        # @return [String]
        attr_accessor :type
      
        # [Output Only] A list of user provided licenses. It represents a list of URLs
        # to the license resource. Unlike regular licenses, user provided licenses can
        # be modified after the disk is created.
        # Corresponds to the JSON property `userLicenses`
        # @return [Array<String>]
        attr_accessor :user_licenses
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @auto_delete = args[:auto_delete] if args.key?(:auto_delete)
          @boot = args[:boot] if args.key?(:boot)
          @device_name = args[:device_name] if args.key?(:device_name)
          @disk_encryption_key = args[:disk_encryption_key] if args.key?(:disk_encryption_key)
          @disk_size_gb = args[:disk_size_gb] if args.key?(:disk_size_gb)
          @force_attach = args[:force_attach] if args.key?(:force_attach)
          @guest_os_features = args[:guest_os_features] if args.key?(:guest_os_features)
          @index = args[:index] if args.key?(:index)
          @initialize_params = args[:initialize_params] if args.key?(:initialize_params)
          @interface = args[:interface] if args.key?(:interface)
          @kind = args[:kind] if args.key?(:kind)
          @licenses = args[:licenses] if args.key?(:licenses)
          @mode = args[:mode] if args.key?(:mode)
          @saved_state = args[:saved_state] if args.key?(:saved_state)
          @shielded_instance_initial_state = args[:shielded_instance_initial_state] if args.key?(:shielded_instance_initial_state)
          @source = args[:source] if args.key?(:source)
          @type = args[:type] if args.key?(:type)
          @user_licenses = args[:user_licenses] if args.key?(:user_licenses)
        end
      end
      
      # [Input Only] Specifies the parameters for a new disk that will be created
      # alongside the new instance. Use initialization parameters to create boot disks
      # or local SSDs attached to the new instance.
      # This property is mutually exclusive with the source property; you can only
      # define one or the other, but not both.
      class AttachedDiskInitializeParams
        include Google::Apis::Core::Hashable
      
        # An optional description. Provide this property when creating the disk.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # Specifies the disk name. If not specified, the default is to use the name of
        # the instance. If a disk with the same name already exists in the given region,
        # the existing disk is attached to the new instance and the new disk is not
        # created.
        # Corresponds to the JSON property `diskName`
        # @return [String]
        attr_accessor :disk_name
      
        # Specifies the size of the disk in base-2 GB. The size must be at least 10 GB.
        # If you specify a sourceImage, which is required for boot disks, the default
        # size is the size of the sourceImage. If you do not specify a sourceImage, the
        # default disk size is 500 GB.
        # Corresponds to the JSON property `diskSizeGb`
        # @return [Fixnum]
        attr_accessor :disk_size_gb
      
        # Specifies the disk type to use to create the instance. If not specified, the
        # default is pd-standard, specified using the full URL. For example:
        # https://www.googleapis.com/compute/v1/projects/project/zones/zone/diskTypes/pd-
        # standard
        # Other values include pd-ssd and local-ssd. If you define this field, you can
        # provide either the full or partial URL. For example, the following are valid
        # values:
        # - https://www.googleapis.com/compute/v1/projects/project/zones/zone/diskTypes/
        # diskType
        # - projects/project/zones/zone/diskTypes/diskType
        # - zones/zone/diskTypes/diskType  Note that for InstanceTemplate, this is the
        # name of the disk type, not URL.
        # Corresponds to the JSON property `diskType`
        # @return [String]
        attr_accessor :disk_type
      
        # A list of features to enable on the guest operating system. Applicable only
        # for bootable images. Read  Enabling guest operating system features to see a
        # list of available options.
        # Guest OS features are applied by merging initializeParams.guestOsFeatures and
        # disks.guestOsFeatures
        # Corresponds to the JSON property `guestOsFeatures`
        # @return [Array<Google::Apis::ComputeAlpha::GuestOsFeature>]
        attr_accessor :guest_os_features
      
        # Labels to apply to this disk. These can be later modified by the disks.
        # setLabels method. This field is only applicable for persistent disks.
        # Corresponds to the JSON property `labels`
        # @return [Hash<String,String>]
        attr_accessor :labels
      
        # Indicates whether or not the disk can be read/write attached to more than one
        # instance.
        # Corresponds to the JSON property `multiWriter`
        # @return [Boolean]
        attr_accessor :multi_writer
        alias_method :multi_writer?, :multi_writer
      
        # Specifies which action to take on instance update with this disk. Default is
        # to use the existing disk.
        # Corresponds to the JSON property `onUpdateAction`
        # @return [String]
        attr_accessor :on_update_action
      
        # Indicates how many IOPS must be provisioned for the disk.
        # Corresponds to the JSON property `provisionedIops`
        # @return [Fixnum]
        attr_accessor :provisioned_iops
      
        # URLs of the zones where the disk should be replicated to. Only applicable for
        # regional resources.
        # Corresponds to the JSON property `replicaZones`
        # @return [Array<String>]
        attr_accessor :replica_zones
      
        # Resource policies applied to this disk for automatic snapshot creations.
        # Specified using the full or partial URL. For instance template, specify only
        # the resource policy name.
        # Corresponds to the JSON property `resourcePolicies`
        # @return [Array<String>]
        attr_accessor :resource_policies
      
        # The source image to create this disk. When creating a new instance, one of
        # initializeParams.sourceImage or initializeParams.sourceSnapshot or disks.
        # source is required except for local SSD.
        # To create a disk with one of the public operating system images, specify the
        # image by its family name. For example, specify family/debian-9 to use the
        # latest Debian 9 image:
        # projects/debian-cloud/global/images/family/debian-9
        # Alternatively, use a specific version of a public operating system image:
        # projects/debian-cloud/global/images/debian-9-stretch-vYYYYMMDD
        # To create a disk with a custom image that you created, specify the image name
        # in the following format:
        # global/images/my-custom-image
        # You can also specify a custom image by its image family, which returns the
        # latest version of the image in that family. Replace the image name with family/
        # family-name:
        # global/images/family/my-image-family
        # If the source image is deleted later, this field will not be set.
        # Corresponds to the JSON property `sourceImage`
        # @return [String]
        attr_accessor :source_image
      
        # The customer-supplied encryption key of the source image. Required if the
        # source image is protected by a customer-supplied encryption key.
        # Instance templates do not store customer-supplied encryption keys, so you
        # cannot create disks for instances in a managed instance group if the source
        # images are encrypted with your own keys.
        # Corresponds to the JSON property `sourceImageEncryptionKey`
        # @return [Google::Apis::ComputeAlpha::CustomerEncryptionKey]
        attr_accessor :source_image_encryption_key
      
        # The source snapshot to create this disk. When creating a new instance, one of
        # initializeParams.sourceSnapshot or initializeParams.sourceImage or disks.
        # source is required except for local SSD.
        # To create a disk with a snapshot that you created, specify the snapshot name
        # in the following format:
        # global/snapshots/my-backup
        # If the source snapshot is deleted later, this field will not be set.
        # Corresponds to the JSON property `sourceSnapshot`
        # @return [String]
        attr_accessor :source_snapshot
      
        # The customer-supplied encryption key of the source snapshot.
        # Corresponds to the JSON property `sourceSnapshotEncryptionKey`
        # @return [Google::Apis::ComputeAlpha::CustomerEncryptionKey]
        attr_accessor :source_snapshot_encryption_key
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @description = args[:description] if args.key?(:description)
          @disk_name = args[:disk_name] if args.key?(:disk_name)
          @disk_size_gb = args[:disk_size_gb] if args.key?(:disk_size_gb)
          @disk_type = args[:disk_type] if args.key?(:disk_type)
          @guest_os_features = args[:guest_os_features] if args.key?(:guest_os_features)
          @labels = args[:labels] if args.key?(:labels)
          @multi_writer = args[:multi_writer] if args.key?(:multi_writer)
          @on_update_action = args[:on_update_action] if args.key?(:on_update_action)
          @provisioned_iops = args[:provisioned_iops] if args.key?(:provisioned_iops)
          @replica_zones = args[:replica_zones] if args.key?(:replica_zones)
          @resource_policies = args[:resource_policies] if args.key?(:resource_policies)
          @source_image = args[:source_image] if args.key?(:source_image)
          @source_image_encryption_key = args[:source_image_encryption_key] if args.key?(:source_image_encryption_key)
          @source_snapshot = args[:source_snapshot] if args.key?(:source_snapshot)
          @source_snapshot_encryption_key = args[:source_snapshot_encryption_key] if args.key?(:source_snapshot_encryption_key)
        end
      end
      
      # Specifies the audit configuration for a service. The configuration determines
      # which permission types are logged, and what identities, if any, are exempted
      # from logging. An AuditConfig must have one or more AuditLogConfigs.
      # If there are AuditConfigs for both `allServices` and a specific service, the
      # union of the two AuditConfigs is used for that service: the log_types
      # specified in each AuditConfig are enabled, and the exempted_members in each
      # AuditLogConfig are exempted.
      # Example Policy with multiple AuditConfigs:
      # ` "audit_configs": [ ` "service": "allServices", "audit_log_configs": [ ` "
      # log_type": "DATA_READ", "exempted_members": [ "user:jose@example.com" ] `, ` "
      # log_type": "DATA_WRITE" `, ` "log_type": "ADMIN_READ" ` ] `, ` "service": "
      # sampleservice.googleapis.com", "audit_log_configs": [ ` "log_type": "DATA_READ"
      # `, ` "log_type": "DATA_WRITE", "exempted_members": [ "user:aliya@example.com"
      # ] ` ] ` ] `
      # For sampleservice, this policy enables DATA_READ, DATA_WRITE and ADMIN_READ
      # logging. It also exempts jose@example.com from DATA_READ logging, and aliya@
      # example.com from DATA_WRITE logging.
      class AuditConfig
        include Google::Apis::Core::Hashable
      
        # The configuration for logging of each type of permission.
        # Corresponds to the JSON property `auditLogConfigs`
        # @return [Array<Google::Apis::ComputeAlpha::AuditLogConfig>]
        attr_accessor :audit_log_configs
      
        # 
        # Corresponds to the JSON property `exemptedMembers`
        # @return [Array<String>]
        attr_accessor :exempted_members
      
        # Specifies a service that will be enabled for audit logging. For example, `
        # storage.googleapis.com`, `cloudsql.googleapis.com`. `allServices` is a special
        # value that covers all services.
        # Corresponds to the JSON property `service`
        # @return [String]
        attr_accessor :service
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @audit_log_configs = args[:audit_log_configs] if args.key?(:audit_log_configs)
          @exempted_members = args[:exempted_members] if args.key?(:exempted_members)
          @service = args[:service] if args.key?(:service)
        end
      end
      
      # Provides the configuration for logging a type of permissions. Example:
      # ` "audit_log_configs": [ ` "log_type": "DATA_READ", "exempted_members": [ "
      # user:jose@example.com" ] `, ` "log_type": "DATA_WRITE" ` ] `
      # This enables 'DATA_READ' and 'DATA_WRITE' logging, while exempting jose@
      # example.com from DATA_READ logging.
      class AuditLogConfig
        include Google::Apis::Core::Hashable
      
        # Specifies the identities that do not cause logging for this type of permission.
        # Follows the same format of [Binding.members][].
        # Corresponds to the JSON property `exemptedMembers`
        # @return [Array<String>]
        attr_accessor :exempted_members
      
        # 
        # Corresponds to the JSON property `ignoreChildExemptions`
        # @return [Boolean]
        attr_accessor :ignore_child_exemptions
        alias_method :ignore_child_exemptions?, :ignore_child_exemptions
      
        # The log type that this config enables.
        # Corresponds to the JSON property `logType`
        # @return [String]
        attr_accessor :log_type
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @exempted_members = args[:exempted_members] if args.key?(:exempted_members)
          @ignore_child_exemptions = args[:ignore_child_exemptions] if args.key?(:ignore_child_exemptions)
          @log_type = args[:log_type] if args.key?(:log_type)
        end
      end
      
      # [Deprecated] The authentication settings for the backend service. The
      # authentication settings for the backend service.
      class AuthenticationPolicy
        include Google::Apis::Core::Hashable
      
        # List of authentication methods that can be used for origin authentication.
        # Similar to peers, these will be evaluated in order the first valid one will be
        # used to set origin identity. If none of these methods pass, the request will
        # be rejected with authentication failed error (401). Leave the list empty if
        # origin authentication is not required.
        # Corresponds to the JSON property `origins`
        # @return [Array<Google::Apis::ComputeAlpha::OriginAuthenticationMethod>]
        attr_accessor :origins
      
        # List of authentication methods that can be used for peer authentication. They
        # will be evaluated in order the first valid one will be used to set peer
        # identity. If none of these methods pass, the request will be rejected with
        # authentication failed error (401). Leave the list empty if peer authentication
        # is not required.
        # Corresponds to the JSON property `peers`
        # @return [Array<Google::Apis::ComputeAlpha::PeerAuthenticationMethod>]
        attr_accessor :peers
      
        # Define whether peer or origin identity should be used for principal. Default
        # value is USE_PEER. If peer (or origin) identity is not available, either
        # because peer/origin authentication is not defined, or failed, principal will
        # be left unset. In other words, binding rule does not affect the decision to
        # accept or reject request. This field can be set to one of the following:
        # USE_PEER: Principal will be set to the identity from peer authentication.
        # USE_ORIGIN: Principal will be set to the identity from origin authentication.
        # Corresponds to the JSON property `principalBinding`
        # @return [String]
        attr_accessor :principal_binding
      
        # [Deprecated] The TLS settings for the client or server. The TLS settings for
        # the client or server.
        # Corresponds to the JSON property `serverTlsContext`
        # @return [Google::Apis::ComputeAlpha::TlsContext]
        attr_accessor :server_tls_context
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @origins = args[:origins] if args.key?(:origins)
          @peers = args[:peers] if args.key?(:peers)
          @principal_binding = args[:principal_binding] if args.key?(:principal_binding)
          @server_tls_context = args[:server_tls_context] if args.key?(:server_tls_context)
        end
      end
      
      # [Deprecated] Authorization configuration provides service-level and method-
      # level access control for a service. control for a service.
      class AuthorizationConfig
        include Google::Apis::Core::Hashable
      
        # List of RbacPolicies.
        # Corresponds to the JSON property `policies`
        # @return [Array<Google::Apis::ComputeAlpha::RbacPolicy>]
        attr_accessor :policies
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @policies = args[:policies] if args.key?(:policies)
        end
      end
      
      # Authorization-related information used by Cloud Audit Logging.
      class AuthorizationLoggingOptions
        include Google::Apis::Core::Hashable
      
        # The type of the permission that was checked.
        # Corresponds to the JSON property `permissionType`
        # @return [String]
        attr_accessor :permission_type
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @permission_type = args[:permission_type] if args.key?(:permission_type)
        end
      end
      
      # Represents an Autoscaler resource.
      # Google Compute Engine has two Autoscaler resources:
      # * [Zonal](/compute/docs/reference/rest/`$api_version`/autoscalers) * [Regional]
      # (/compute/docs/reference/rest/`$api_version`/regionAutoscalers)
      # Use autoscalers to automatically add or delete instances from a managed
      # instance group according to your defined autoscaling policy. For more
      # information, read Autoscaling Groups of Instances.
      # For zonal managed instance groups resource, use the autoscaler resource.
      # For regional managed instance groups, use the regionAutoscalers resource. (==
      # resource_for `$api_version`.autoscalers ==) (== resource_for `$api_version`.
      # regionAutoscalers ==)
      class Autoscaler
        include Google::Apis::Core::Hashable
      
        # Cloud Autoscaler policy.
        # Corresponds to the JSON property `autoscalingPolicy`
        # @return [Google::Apis::ComputeAlpha::AutoscalingPolicy]
        attr_accessor :autoscaling_policy
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] Type of the resource. Always compute#autoscaler for autoscalers.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # Name of the resource. Provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # [Output Only] Target recommended MIG size (number of instances) computed by
        # autoscaler. Autoscaler calculates the recommended MIG size even when the
        # autoscaling policy mode is different from ON. This field is empty when
        # autoscaler is not connected to an existing managed instance group or
        # autoscaler did not generate its prediction.
        # Corresponds to the JSON property `recommendedSize`
        # @return [Fixnum]
        attr_accessor :recommended_size
      
        # [Output Only] URL of the region where the instance group resides (for
        # autoscalers living in regional scope).
        # Corresponds to the JSON property `region`
        # @return [String]
        attr_accessor :region
      
        # [Output Only] Status information of existing scaling schedules.
        # Corresponds to the JSON property `scalingScheduleStatus`
        # @return [Hash<String,Google::Apis::ComputeAlpha::ScalingScheduleStatus>]
        attr_accessor :scaling_schedule_status
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # [Output Only] The status of the autoscaler configuration. Current set of
        # possible values:
        # - PENDING: Autoscaler backend hasn't read new/updated configuration.
        # - DELETING: Configuration is being deleted.
        # - ACTIVE: Configuration is acknowledged to be effective. Some warnings might
        # be present in the statusDetails field.
        # - ERROR: Configuration has errors. Actionable for users. Details are present
        # in the statusDetails field.  New values might be added in the future.
        # Corresponds to the JSON property `status`
        # @return [String]
        attr_accessor :status
      
        # [Output Only] Human-readable details about the current state of the autoscaler.
        # Read the documentation for Commonly returned status messages for examples of
        # status messages you might encounter.
        # Corresponds to the JSON property `statusDetails`
        # @return [Array<Google::Apis::ComputeAlpha::AutoscalerStatusDetails>]
        attr_accessor :status_details
      
        # URL of the managed instance group that this autoscaler will scale. This field
        # is required when creating an autoscaler.
        # Corresponds to the JSON property `target`
        # @return [String]
        attr_accessor :target
      
        # [Output Only] URL of the zone where the instance group resides (for
        # autoscalers living in zonal scope).
        # Corresponds to the JSON property `zone`
        # @return [String]
        attr_accessor :zone
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @autoscaling_policy = args[:autoscaling_policy] if args.key?(:autoscaling_policy)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @name = args[:name] if args.key?(:name)
          @recommended_size = args[:recommended_size] if args.key?(:recommended_size)
          @region = args[:region] if args.key?(:region)
          @scaling_schedule_status = args[:scaling_schedule_status] if args.key?(:scaling_schedule_status)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @status = args[:status] if args.key?(:status)
          @status_details = args[:status_details] if args.key?(:status_details)
          @target = args[:target] if args.key?(:target)
          @zone = args[:zone] if args.key?(:zone)
        end
      end
      
      # 
      class AutoscalerAggregatedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of AutoscalersScopedList resources.
        # Corresponds to the JSON property `items`
        # @return [Hash<String,Google::Apis::ComputeAlpha::AutoscalersScopedList>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#autoscalerAggregatedList for
        # aggregated lists of autoscalers.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Unreachable resources.
        # Corresponds to the JSON property `unreachables`
        # @return [Array<String>]
        attr_accessor :unreachables
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::AutoscalerAggregatedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @unreachables = args[:unreachables] if args.key?(:unreachables)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::AutoscalerAggregatedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Contains a list of Autoscaler resources.
      class AutoscalerList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of Autoscaler resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::Autoscaler>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#autoscalerList for lists of
        # autoscalers.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::AutoscalerList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::AutoscalerList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class AutoscalerStatusDetails
        include Google::Apis::Core::Hashable
      
        # The status message.
        # Corresponds to the JSON property `message`
        # @return [String]
        attr_accessor :message
      
        # The type of error, warning, or notice returned. Current set of possible values:
        # 
        # - ALL_INSTANCES_UNHEALTHY (WARNING): All instances in the instance group are
        # unhealthy (not in RUNNING state).
        # - BACKEND_SERVICE_DOES_NOT_EXIST (ERROR): There is no backend service attached
        # to the instance group.
        # - CAPPED_AT_MAX_NUM_REPLICAS (WARNING): Autoscaler recommends a size greater
        # than maxNumReplicas.
        # - CUSTOM_METRIC_DATA_POINTS_TOO_SPARSE (WARNING): The custom metric samples
        # are not exported often enough to be a credible base for autoscaling.
        # - CUSTOM_METRIC_INVALID (ERROR): The custom metric that was specified does not
        # exist or does not have the necessary labels.
        # - MIN_EQUALS_MAX (WARNING): The minNumReplicas is equal to maxNumReplicas.
        # This means the autoscaler cannot add or remove instances from the instance
        # group.
        # - MISSING_CUSTOM_METRIC_DATA_POINTS (WARNING): The autoscaler did not receive
        # any data from the custom metric configured for autoscaling.
        # - MISSING_LOAD_BALANCING_DATA_POINTS (WARNING): The autoscaler is configured
        # to scale based on a load balancing signal but the instance group has not
        # received any requests from the load balancer.
        # - MODE_OFF (WARNING): Autoscaling is turned off. The number of instances in
        # the group won't change automatically. The autoscaling configuration is
        # preserved.
        # - MODE_ONLY_UP (WARNING): Autoscaling is in the "Autoscale only out" mode. The
        # autoscaler can add instances but not remove any.
        # - MORE_THAN_ONE_BACKEND_SERVICE (ERROR): The instance group cannot be
        # autoscaled because it has more than one backend service attached to it.
        # - NOT_ENOUGH_QUOTA_AVAILABLE (ERROR): There is insufficient quota for the
        # necessary resources, such as CPU or number of instances.
        # - REGION_RESOURCE_STOCKOUT (ERROR): Shown only for regional autoscalers: there
        # is a resource stockout in the chosen region.
        # - SCALING_TARGET_DOES_NOT_EXIST (ERROR): The target to be scaled does not
        # exist.
        # - UNSUPPORTED_MAX_RATE_LOAD_BALANCING_CONFIGURATION (ERROR): Autoscaling does
        # not work with an HTTP/S load balancer that has been configured for maxRate.
        # - ZONE_RESOURCE_STOCKOUT (ERROR): For zonal autoscalers: there is a resource
        # stockout in the chosen zone. For regional autoscalers: in at least one of the
        # zones you're using there is a resource stockout.  New values might be added in
        # the future. Some of the values might not be available in all API versions.
        # Corresponds to the JSON property `type`
        # @return [String]
        attr_accessor :type
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @message = args[:message] if args.key?(:message)
          @type = args[:type] if args.key?(:type)
        end
      end
      
      # 
      class AutoscalersScopedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] A list of autoscalers contained in this scope.
        # Corresponds to the JSON property `autoscalers`
        # @return [Array<Google::Apis::ComputeAlpha::Autoscaler>]
        attr_accessor :autoscalers
      
        # [Output Only] Informational warning which replaces the list of autoscalers
        # when the list is empty.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::AutoscalersScopedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @autoscalers = args[:autoscalers] if args.key?(:autoscalers)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning which replaces the list of autoscalers
        # when the list is empty.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::AutoscalersScopedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Cloud Autoscaler policy.
      class AutoscalingPolicy
        include Google::Apis::Core::Hashable
      
        # The number of seconds that the autoscaler waits before it starts collecting
        # information from a new instance. This prevents the autoscaler from collecting
        # information when the instance is initializing, during which the collected
        # usage would not be reliable. The default time autoscaler waits is 60 seconds.
        # Virtual machine initialization times might vary because of numerous factors.
        # We recommend that you test how long an instance may take to initialize. To do
        # this, create an instance and time the startup process.
        # Corresponds to the JSON property `coolDownPeriodSec`
        # @return [Fixnum]
        attr_accessor :cool_down_period_sec
      
        # CPU utilization policy.
        # Corresponds to the JSON property `cpuUtilization`
        # @return [Google::Apis::ComputeAlpha::AutoscalingPolicyCpuUtilization]
        attr_accessor :cpu_utilization
      
        # Configuration parameters of autoscaling based on a custom metric.
        # Corresponds to the JSON property `customMetricUtilizations`
        # @return [Array<Google::Apis::ComputeAlpha::AutoscalingPolicyCustomMetricUtilization>]
        attr_accessor :custom_metric_utilizations
      
        # Configuration parameters of autoscaling based on load balancing.
        # Corresponds to the JSON property `loadBalancingUtilization`
        # @return [Google::Apis::ComputeAlpha::AutoscalingPolicyLoadBalancingUtilization]
        attr_accessor :load_balancing_utilization
      
        # The maximum number of instances that the autoscaler can scale out to. This is
        # required when creating or updating an autoscaler. The maximum number of
        # replicas must not be lower than minimal number of replicas.
        # Corresponds to the JSON property `maxNumReplicas`
        # @return [Fixnum]
        attr_accessor :max_num_replicas
      
        # The minimum number of replicas that the autoscaler can scale in to. This
        # cannot be less than 0. If not provided, autoscaler chooses a default value
        # depending on maximum number of instances allowed.
        # Corresponds to the JSON property `minNumReplicas`
        # @return [Fixnum]
        attr_accessor :min_num_replicas
      
        # Defines operating mode for this policy.
        # Corresponds to the JSON property `mode`
        # @return [String]
        attr_accessor :mode
      
        # Configuration that allows for slower scale in so that even if Autoscaler
        # recommends an abrupt scale in of a MIG, it will be throttled as specified by
        # the parameters below.
        # Corresponds to the JSON property `scaleDownControl`
        # @return [Google::Apis::ComputeAlpha::AutoscalingPolicyScaleDownControl]
        attr_accessor :scale_down_control
      
        # Configuration that allows for slower scale in so that even if Autoscaler
        # recommends an abrupt scale in of a MIG, it will be throttled as specified by
        # the parameters below.
        # Corresponds to the JSON property `scaleInControl`
        # @return [Google::Apis::ComputeAlpha::AutoscalingPolicyScaleInControl]
        attr_accessor :scale_in_control
      
        # Scaling schedules defined for an autoscaler. Multiple schedules can be set on
        # an autoscaler, and they can overlap. During overlapping periods the greatest
        # min_required_replicas of all scaling schedules is applied. Up to 128 scaling
        # schedules are allowed.
        # Corresponds to the JSON property `scalingSchedules`
        # @return [Hash<String,Google::Apis::ComputeAlpha::AutoscalingPolicyScalingSchedule>]
        attr_accessor :scaling_schedules
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @cool_down_period_sec = args[:cool_down_period_sec] if args.key?(:cool_down_period_sec)
          @cpu_utilization = args[:cpu_utilization] if args.key?(:cpu_utilization)
          @custom_metric_utilizations = args[:custom_metric_utilizations] if args.key?(:custom_metric_utilizations)
          @load_balancing_utilization = args[:load_balancing_utilization] if args.key?(:load_balancing_utilization)
          @max_num_replicas = args[:max_num_replicas] if args.key?(:max_num_replicas)
          @min_num_replicas = args[:min_num_replicas] if args.key?(:min_num_replicas)
          @mode = args[:mode] if args.key?(:mode)
          @scale_down_control = args[:scale_down_control] if args.key?(:scale_down_control)
          @scale_in_control = args[:scale_in_control] if args.key?(:scale_in_control)
          @scaling_schedules = args[:scaling_schedules] if args.key?(:scaling_schedules)
        end
      end
      
      # CPU utilization policy.
      class AutoscalingPolicyCpuUtilization
        include Google::Apis::Core::Hashable
      
        # Indicates whether predictive autoscaling based on CPU metric is enabled. Valid
        # values are:
        # * NONE (default). No predictive method is used. The autoscaler scales the
        # group to meet current demand based on real-time metrics. *
        # OPTIMIZE_AVAILABILITY. Predictive autoscaling improves availability by
        # monitoring daily and weekly load patterns and scaling out ahead of anticipated
        # demand.
        # Corresponds to the JSON property `predictiveMethod`
        # @return [String]
        attr_accessor :predictive_method
      
        # The target CPU utilization that the autoscaler maintains. Must be a float
        # value in the range (0, 1]. If not specified, the default is 0.6.
        # If the CPU level is below the target utilization, the autoscaler scales in the
        # number of instances until it reaches the minimum number of instances you
        # specified or until the average CPU of your instances reaches the target
        # utilization.
        # If the average CPU is above the target utilization, the autoscaler scales out
        # until it reaches the maximum number of instances you specified or until the
        # average utilization reaches the target utilization.
        # Corresponds to the JSON property `utilizationTarget`
        # @return [Float]
        attr_accessor :utilization_target
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @predictive_method = args[:predictive_method] if args.key?(:predictive_method)
          @utilization_target = args[:utilization_target] if args.key?(:utilization_target)
        end
      end
      
      # Custom utilization metric policy.
      class AutoscalingPolicyCustomMetricUtilization
        include Google::Apis::Core::Hashable
      
        # A filter string, compatible with a Stackdriver Monitoring filter string for
        # TimeSeries.list API call. This filter is used to select a specific TimeSeries
        # for the purpose of autoscaling and to determine whether the metric is
        # exporting per-instance or per-group data.
        # For the filter to be valid for autoscaling purposes, the following rules apply:
        # 
        # - You can only use the AND operator for joining selectors.
        # - You can only use direct equality comparison operator (=) without any
        # functions for each selector.
        # - You can specify the metric in both the filter string and in the metric field.
        # However, if specified in both places, the metric must be identical.
        # - The monitored resource type determines what kind of values are expected for
        # the metric. If it is a gce_instance, the autoscaler expects the metric to
        # include a separate TimeSeries for each instance in a group. In such a case,
        # you cannot filter on resource labels.
        # If the resource type is any other value, the autoscaler expects this metric to
        # contain values that apply to the entire autoscaled instance group and resource
        # label filtering can be performed to point autoscaler at the correct TimeSeries
        # to scale upon. This is called a per-group metric for the purpose of
        # autoscaling.
        # If not specified, the type defaults to gce_instance.
        # Try to provide a filter that is selective enough to pick just one TimeSeries
        # for the autoscaled group or for each of the instances (if you are using
        # gce_instance resource type). If multiple TimeSeries are returned upon the
        # query execution, the autoscaler will sum their respective values to obtain its
        # scaling value.
        # Corresponds to the JSON property `filter`
        # @return [String]
        attr_accessor :filter
      
        # The identifier (type) of the Stackdriver Monitoring metric. The metric cannot
        # have negative values.
        # The metric must have a value type of INT64 or DOUBLE.
        # Corresponds to the JSON property `metric`
        # @return [String]
        attr_accessor :metric
      
        # If scaling is based on a per-group metric value that represents the total
        # amount of work to be done or resource usage, set this value to an amount
        # assigned for a single instance of the scaled group. Autoscaler keeps the
        # number of instances proportional to the value of this metric. The metric
        # itself does not change value due to group resizing.
        # A good metric to use with the target is for example pubsub.googleapis.com/
        # subscription/num_undelivered_messages or a custom metric exporting the total
        # number of requests coming to your instances.
        # A bad example would be a metric exporting an average or median latency, since
        # this value can't include a chunk assignable to a single instance, it could be
        # better used with utilization_target instead.
        # Corresponds to the JSON property `singleInstanceAssignment`
        # @return [Float]
        attr_accessor :single_instance_assignment
      
        # The target value of the metric that autoscaler maintains. This must be a
        # positive value. A utilization metric scales number of virtual machines
        # handling requests to increase or decrease proportionally to the metric.
        # For example, a good metric to use as a utilization_target is https://www.
        # googleapis.com/compute/v1/instance/network/received_bytes_count. The
        # autoscaler works to keep this value constant for each of the instances.
        # Corresponds to the JSON property `utilizationTarget`
        # @return [Float]
        attr_accessor :utilization_target
      
        # Defines how target utilization value is expressed for a Stackdriver Monitoring
        # metric. Either GAUGE, DELTA_PER_SECOND, or DELTA_PER_MINUTE.
        # Corresponds to the JSON property `utilizationTargetType`
        # @return [String]
        attr_accessor :utilization_target_type
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @filter = args[:filter] if args.key?(:filter)
          @metric = args[:metric] if args.key?(:metric)
          @single_instance_assignment = args[:single_instance_assignment] if args.key?(:single_instance_assignment)
          @utilization_target = args[:utilization_target] if args.key?(:utilization_target)
          @utilization_target_type = args[:utilization_target_type] if args.key?(:utilization_target_type)
        end
      end
      
      # Configuration parameters of autoscaling based on load balancing.
      class AutoscalingPolicyLoadBalancingUtilization
        include Google::Apis::Core::Hashable
      
        # Fraction of backend capacity utilization (set in HTTP(S) load balancing
        # configuration) that the autoscaler maintains. Must be a positive float value.
        # If not defined, the default is 0.8.
        # Corresponds to the JSON property `utilizationTarget`
        # @return [Float]
        attr_accessor :utilization_target
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @utilization_target = args[:utilization_target] if args.key?(:utilization_target)
        end
      end
      
      # Configuration that allows for slower scale in so that even if Autoscaler
      # recommends an abrupt scale in of a MIG, it will be throttled as specified by
      # the parameters below.
      class AutoscalingPolicyScaleDownControl
        include Google::Apis::Core::Hashable
      
        # Encapsulates numeric value that can be either absolute or relative.
        # Corresponds to the JSON property `maxScaledDownReplicas`
        # @return [Google::Apis::ComputeAlpha::FixedOrPercent]
        attr_accessor :max_scaled_down_replicas
      
        # How far back autoscaling looks when computing recommendations to include
        # directives regarding slower scale in, as described above.
        # Corresponds to the JSON property `timeWindowSec`
        # @return [Fixnum]
        attr_accessor :time_window_sec
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @max_scaled_down_replicas = args[:max_scaled_down_replicas] if args.key?(:max_scaled_down_replicas)
          @time_window_sec = args[:time_window_sec] if args.key?(:time_window_sec)
        end
      end
      
      # Configuration that allows for slower scale in so that even if Autoscaler
      # recommends an abrupt scale in of a MIG, it will be throttled as specified by
      # the parameters below.
      class AutoscalingPolicyScaleInControl
        include Google::Apis::Core::Hashable
      
        # Encapsulates numeric value that can be either absolute or relative.
        # Corresponds to the JSON property `maxScaledInReplicas`
        # @return [Google::Apis::ComputeAlpha::FixedOrPercent]
        attr_accessor :max_scaled_in_replicas
      
        # How far back autoscaling looks when computing recommendations to include
        # directives regarding slower scale in, as described above.
        # Corresponds to the JSON property `timeWindowSec`
        # @return [Fixnum]
        attr_accessor :time_window_sec
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @max_scaled_in_replicas = args[:max_scaled_in_replicas] if args.key?(:max_scaled_in_replicas)
          @time_window_sec = args[:time_window_sec] if args.key?(:time_window_sec)
        end
      end
      
      # Scaling based on user-defined schedule. The message describes a single scaling
      # schedule. A scaling schedule changes the minimum number of VM instances an
      # autoscaler can recommend, which can trigger scaling out.
      class AutoscalingPolicyScalingSchedule
        include Google::Apis::Core::Hashable
      
        # A description of a scaling schedule.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # A boolean value that specifies whether a scaling schedule can influence
        # autoscaler recommendations. If set to true, then a scaling schedule has no
        # effect. This field is optional, and its value is false by default.
        # Corresponds to the JSON property `disabled`
        # @return [Boolean]
        attr_accessor :disabled
        alias_method :disabled?, :disabled
      
        # The duration of time intervals, in seconds, for which this scaling schedule is
        # to run. The minimum allowed value is 300. This field is required.
        # Corresponds to the JSON property `durationSec`
        # @return [Fixnum]
        attr_accessor :duration_sec
      
        # The minimum number of VM instances that the autoscaler will recommend in time
        # intervals starting according to schedule. This field is required.
        # Corresponds to the JSON property `minRequiredReplicas`
        # @return [Fixnum]
        attr_accessor :min_required_replicas
      
        # The start timestamps of time intervals when this scaling schedule is to
        # provide a scaling signal. This field uses the extended cron format (with an
        # optional year field). The expression can describe a single timestamp if the
        # optional year is set, in which case the scaling schedule runs once. The
        # schedule is interpreted with respect to time_zone. This field is required.
        # Note: These timestamps only describe when autoscaler starts providing the
        # scaling signal. The VMs need additional time to become serving.
        # Corresponds to the JSON property `schedule`
        # @return [String]
        attr_accessor :schedule
      
        # The time zone to use when interpreting the schedule. The value of this field
        # must be a time zone name from the tz database: http://en.wikipedia.org/wiki/
        # Tz_database. This field is assigned a default value of ?UTC? if left empty.
        # Corresponds to the JSON property `timeZone`
        # @return [String]
        attr_accessor :time_zone
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @description = args[:description] if args.key?(:description)
          @disabled = args[:disabled] if args.key?(:disabled)
          @duration_sec = args[:duration_sec] if args.key?(:duration_sec)
          @min_required_replicas = args[:min_required_replicas] if args.key?(:min_required_replicas)
          @schedule = args[:schedule] if args.key?(:schedule)
          @time_zone = args[:time_zone] if args.key?(:time_zone)
        end
      end
      
      # Message containing information of one individual backend.
      class Backend
        include Google::Apis::Core::Hashable
      
        # Specifies the balancing mode for the backend.
        # When choosing a balancing mode, you need to consider the loadBalancingScheme,
        # and protocol for the backend service, as well as the type of backend (instance
        # group or NEG).
        # 
        # - If the load balancing mode is CONNECTION, then the load is spread based on
        # how many concurrent connections the backend can handle.
        # You can use the CONNECTION balancing mode if the protocol for the backend
        # service is SSL, TCP, or UDP.
        # If the loadBalancingScheme for the backend service is EXTERNAL (SSL Proxy and
        # TCP Proxy load balancers), you must also specify exactly one of the following
        # parameters: maxConnections (except for regional managed instance groups),
        # maxConnectionsPerInstance, or maxConnectionsPerEndpoint.
        # If the loadBalancingScheme for the backend service is INTERNAL (internal TCP/
        # UDP Load Balancers) or EXTERNAL  (Network Load Balancing), you cannot specify
        # any additional parameters.
        # 
        # - If the load balancing mode is RATE, the load is spread based on the rate of
        # HTTP requests per second (RPS).
        # You can use the RATE balancing mode if the protocol for the backend service is
        # HTTP, HTTP2, or HTTPS. You must specify exactly one of the following
        # parameters: maxRate (except for regional managed instance groups),
        # maxRatePerInstance, or maxRatePerEndpoint.
        # 
        # - If the load balancing mode is UTILIZATION, the load is spread based on the
        # backend utilization of instances in an instance group.
        # You can use the UTILIZATION balancing mode if the loadBalancingScheme of the
        # backend service is EXTERNAL (except Network Load Balancing),
        # INTERNAL_SELF_MANAGED, or INTERNAL_MANAGED and the backends are instance
        # groups. There are no restrictions on the backend service protocol.
        # Corresponds to the JSON property `balancingMode`
        # @return [String]
        attr_accessor :balancing_mode
      
        # A multiplier applied to the group's maximum servicing capacity (based on
        # UTILIZATION, RATE or CONNECTION). Default value is 1, which means the group
        # will serve up to 100% of its configured capacity (depending on balancingMode).
        # A setting of 0 means the group is completely drained, offering 0% of its
        # available capacity. Valid range is 0.0 and [0.1,1.0]. You cannot configure a
        # setting larger than 0 and smaller than 0.1. You cannot configure a setting of
        # 0 when there is only one backend attached to the backend service.
        # This cannot be used for Internal TCP/UDP Load Balancing and Network Load
        # Balancing.
        # Corresponds to the JSON property `capacityScaler`
        # @return [Float]
        attr_accessor :capacity_scaler
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # This field designates whether this is a failover backend. More than one
        # failover backend can be configured for a given BackendService.
        # Corresponds to the JSON property `failover`
        # @return [Boolean]
        attr_accessor :failover
        alias_method :failover?, :failover
      
        # The fully-qualified URL of an instance group or network endpoint group (NEG)
        # resource. The type of backend that a backend service supports depends on the
        # backend service's loadBalancingScheme.
        # 
        # - When the loadBalancingScheme for the backend service is EXTERNAL (except
        # Network Load Balancing),  INTERNAL_SELF_MANAGED, or INTERNAL_MANAGED , the
        # backend can be either an instance group or a NEG. The backends on the backend
        # service must be either all instance groups or all NEGs. You cannot mix
        # instance group and NEG backends on the same backend service.
        # - When the loadBalancingScheme for the backend service is EXTERNAL for Network
        # Load Balancing or INTERNAL for Internal TCP/UDP Load Balancing, the backend
        # must be an instance group. NEGs are not supported.
        # For regional services, the backend must be in the same region as the backend
        # service.
        # You must use the fully-qualified URL (starting with https://www.googleapis.com/
        # ) to specify the instance group or NEG. Partial URLs are not supported.
        # Corresponds to the JSON property `group`
        # @return [String]
        attr_accessor :group
      
        # Defines a target maximum number of simultaneous connections that the backend
        # can handle. Valid for network endpoint group and instance group backends (
        # except for regional managed instance groups). If the backend's balancingMode
        # is UTILIZATION, this is an optional parameter. If the backend's balancingMode
        # is CONNECTION, and backend is attached to a backend service whose
        # loadBalancingScheme is EXTERNAL (except Network Load Balancing), you must
        # specify either this parameter, maxConnectionsPerInstance, or
        # maxConnectionsPerEndpoint.
        # Not available if the backend's balancingMode is RATE. Cannot be specified for
        # Network Load Balancing or Internal TCP/UDP Load Balancing, even though those
        # load balancers require a balancing mode of CONNECTION.
        # Corresponds to the JSON property `maxConnections`
        # @return [Fixnum]
        attr_accessor :max_connections
      
        # Defines a target maximum number of simultaneous connections for an endpoint of
        # a NEG. This is multiplied by the number of endpoints in the NEG to implicitly
        # calculate a maximum number of target maximum simultaneous connections for the
        # NEG. If the backend's balancingMode is CONNECTION, and backend is attached to
        # a backend service whose loadBalancingScheme is EXTERNAL (except Network Load
        # Balancing), you must specify either this parameter, maxConnections, or
        # maxConnectionsPerInstance.
        # Not available if the backend's balancingMode is RATE. Cannot be specified for
        # Network Load Balancing or Internal TCP/UDP Load Balancing, even though those
        # load balancers require a balancing mode of CONNECTION.
        # Corresponds to the JSON property `maxConnectionsPerEndpoint`
        # @return [Fixnum]
        attr_accessor :max_connections_per_endpoint
      
        # Defines a target maximum number of simultaneous connections for a single VM in
        # a backend instance group. This is multiplied by the number of instances in the
        # instance group to implicitly calculate a target maximum number of simultaneous
        # connections for the whole instance group. If the backend's balancingMode is
        # UTILIZATION, this is an optional parameter. If the backend's balancingMode is
        # CONNECTION, and backend is attached to a backend service whose
        # loadBalancingScheme is EXTERNAL (except Network Load Balancing), you must
        # specify either this parameter,  maxConnections, or maxConnectionsPerEndpoint.
        # Not available if the backend's balancingMode is RATE. Cannot be specified for
        # Network Load Balancing or Internal TCP/UDP Load Balancing, even though those
        # load balancers require a balancing mode of CONNECTION.
        # Corresponds to the JSON property `maxConnectionsPerInstance`
        # @return [Fixnum]
        attr_accessor :max_connections_per_instance
      
        # Defines a maximum number of HTTP requests per second (RPS) that the backend
        # can handle. Valid for network endpoint group and instance group backends (
        # except for regional managed instance groups). Must not be defined if the
        # backend is a managed instance group that uses autoscaling based on load
        # balancing.
        # If the backend's balancingMode is UTILIZATION, this is an optional parameter.
        # If the backend's balancingMode is RATE, you must specify maxRate,
        # maxRatePerInstance, or maxRatePerEndpoint.
        # Not available if the backend's balancingMode is CONNECTION.
        # Corresponds to the JSON property `maxRate`
        # @return [Fixnum]
        attr_accessor :max_rate
      
        # Defines a maximum target for requests per second (RPS) for an endpoint of a
        # NEG. This is multiplied by the number of endpoints in the NEG to implicitly
        # calculate a target maximum rate for the NEG.
        # If the backend's balancingMode is RATE, you must specify either this parameter,
        # maxRate (except for regional managed instance groups), or maxRatePerInstance.
        # Not available if the backend's balancingMode is CONNECTION.
        # Corresponds to the JSON property `maxRatePerEndpoint`
        # @return [Float]
        attr_accessor :max_rate_per_endpoint
      
        # Defines a maximum target for requests per second (RPS) for a single VM in a
        # backend instance group. This is multiplied by the number of instances in the
        # instance group to implicitly calculate a target maximum rate for the whole
        # instance group.
        # If the backend's balancingMode is UTILIZATION, this is an optional parameter.
        # If the backend's balancingMode is RATE, you must specify either this parameter,
        # maxRate (except for regional managed instance groups), or maxRatePerEndpoint.
        # Not available if the backend's balancingMode is CONNECTION.
        # Corresponds to the JSON property `maxRatePerInstance`
        # @return [Float]
        attr_accessor :max_rate_per_instance
      
        # Defines the maximum average backend utilization of a backend VM in an instance
        # group. The valid range is [0.0, 1.0]. This is an optional parameter if the
        # backend's balancingMode is UTILIZATION.
        # This parameter can be used in conjunction with maxRate, maxRatePerInstance,
        # maxConnections (except for regional managed instance groups), or
        # maxConnectionsPerInstance.
        # Corresponds to the JSON property `maxUtilization`
        # @return [Float]
        attr_accessor :max_utilization
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @balancing_mode = args[:balancing_mode] if args.key?(:balancing_mode)
          @capacity_scaler = args[:capacity_scaler] if args.key?(:capacity_scaler)
          @description = args[:description] if args.key?(:description)
          @failover = args[:failover] if args.key?(:failover)
          @group = args[:group] if args.key?(:group)
          @max_connections = args[:max_connections] if args.key?(:max_connections)
          @max_connections_per_endpoint = args[:max_connections_per_endpoint] if args.key?(:max_connections_per_endpoint)
          @max_connections_per_instance = args[:max_connections_per_instance] if args.key?(:max_connections_per_instance)
          @max_rate = args[:max_rate] if args.key?(:max_rate)
          @max_rate_per_endpoint = args[:max_rate_per_endpoint] if args.key?(:max_rate_per_endpoint)
          @max_rate_per_instance = args[:max_rate_per_instance] if args.key?(:max_rate_per_instance)
          @max_utilization = args[:max_utilization] if args.key?(:max_utilization)
        end
      end
      
      # Represents a Cloud Storage Bucket resource.
      # This Cloud Storage bucket resource is referenced by a URL map of a load
      # balancer. For more information, read Backend Buckets.
      class BackendBucket
        include Google::Apis::Core::Hashable
      
        # Cloud Storage bucket name.
        # Corresponds to the JSON property `bucketName`
        # @return [String]
        attr_accessor :bucket_name
      
        # Message containing Cloud CDN configuration for a backend bucket.
        # Corresponds to the JSON property `cdnPolicy`
        # @return [Google::Apis::ComputeAlpha::BackendBucketCdnPolicy]
        attr_accessor :cdn_policy
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # Headers that the HTTP/S load balancer should add to proxied responses.
        # Corresponds to the JSON property `customResponseHeaders`
        # @return [Array<String>]
        attr_accessor :custom_response_headers
      
        # An optional textual description of the resource; provided by the client when
        # the resource is created.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # [Output Only] The resource URL for the edge security policy associated with
        # this backend bucket.
        # Corresponds to the JSON property `edgeSecurityPolicy`
        # @return [String]
        attr_accessor :edge_security_policy
      
        # If true, enable Cloud CDN for this BackendBucket.
        # Corresponds to the JSON property `enableCdn`
        # @return [Boolean]
        attr_accessor :enable_cdn
        alias_method :enable_cdn?, :enable_cdn
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # Type of the resource.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # Name of the resource. Provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @bucket_name = args[:bucket_name] if args.key?(:bucket_name)
          @cdn_policy = args[:cdn_policy] if args.key?(:cdn_policy)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @custom_response_headers = args[:custom_response_headers] if args.key?(:custom_response_headers)
          @description = args[:description] if args.key?(:description)
          @edge_security_policy = args[:edge_security_policy] if args.key?(:edge_security_policy)
          @enable_cdn = args[:enable_cdn] if args.key?(:enable_cdn)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @name = args[:name] if args.key?(:name)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
        end
      end
      
      # Message containing Cloud CDN configuration for a backend bucket.
      class BackendBucketCdnPolicy
        include Google::Apis::Core::Hashable
      
        # Bypass the cache when the specified request headers are matched - e.g. Pragma
        # or Authorization headers. Up to 5 headers can be specified. The cache is
        # bypassed for all cdnPolicy.cacheMode settings.
        # Corresponds to the JSON property `bypassCacheOnRequestHeaders`
        # @return [Array<Google::Apis::ComputeAlpha::BackendBucketCdnPolicyBypassCacheOnRequestHeader>]
        attr_accessor :bypass_cache_on_request_headers
      
        # Specifies the cache setting for all responses from this backend. The possible
        # values are:
        # USE_ORIGIN_HEADERS Requires the origin to set valid caching headers to cache
        # content. Responses without these headers will not be cached at Google's edge,
        # and will require a full trip to the origin on every request, potentially
        # impacting performance and increasing load on the origin server.
        # FORCE_CACHE_ALL Cache all content, ignoring any "private", "no-store" or "no-
        # cache" directives in Cache-Control response headers. Warning: this may result
        # in Cloud CDN caching private, per-user (user identifiable) content.
        # CACHE_ALL_STATIC Automatically cache static content, including common image
        # formats, media (video and audio), and web assets (JavaScript and CSS).
        # Requests and responses that are marked as uncacheable, as well as dynamic
        # content (including HTML), will not be cached.
        # Corresponds to the JSON property `cacheMode`
        # @return [String]
        attr_accessor :cache_mode
      
        # Specifies a separate client (e.g. browser client) TTL, separate from the TTL
        # for Cloud CDN's edge caches. Leaving this empty will use the same cache TTL
        # for both Cloud CDN and the client-facing response. The maximum allowed value
        # is 86400s (1 day).
        # Corresponds to the JSON property `clientTtl`
        # @return [Fixnum]
        attr_accessor :client_ttl
      
        # Specifies the default TTL for cached content served by this origin for
        # responses that do not have an existing valid TTL (max-age or s-max-age).
        # Setting a TTL of "0" means "always revalidate". The value of defaultTTL cannot
        # be set to a value greater than that of maxTTL, but can be equal. When the
        # cacheMode is set to FORCE_CACHE_ALL, the defaultTTL will overwrite the TTL set
        # in all responses. The maximum allowed value is 31,622,400s (1 year), noting
        # that infrequently accessed objects may be evicted from the cache before the
        # defined TTL.
        # Corresponds to the JSON property `defaultTtl`
        # @return [Fixnum]
        attr_accessor :default_ttl
      
        # Specifies the maximum allowed TTL for cached content served by this origin.
        # Cache directives that attempt to set a max-age or s-maxage higher than this,
        # or an Expires header more than maxTTL seconds in the future will be capped at
        # the value of maxTTL, as if it were the value of an s-maxage Cache-Control
        # directive. Headers sent to the client will not be modified. Setting a TTL of "
        # 0" means "always revalidate". The maximum allowed value is 31,622,400s (1 year)
        # , noting that infrequently accessed objects may be evicted from the cache
        # before the defined TTL.
        # Corresponds to the JSON property `maxTtl`
        # @return [Fixnum]
        attr_accessor :max_ttl
      
        # Negative caching allows per-status code TTLs to be set, in order to apply fine-
        # grained caching for common errors or redirects. This can reduce the load on
        # your origin and improve end-user experience by reducing response latency. When
        # the cache mode is set to CACHE_ALL_STATIC or USE_ORIGIN_HEADERS, negative
        # caching applies to responses with the specified response code that lack any
        # Cache-Control, Expires, or Pragma: no-cache directives. When the cache mode is
        # set to FORCE_CACHE_ALL, negative caching applies to all responses with the
        # specified response code, and override any caching headers. By default, Cloud
        # CDN will apply the following default TTLs to these status codes: HTTP 300 (
        # Multiple Choice), 301, 308 (Permanent Redirects): 10m HTTP 404 (Not Found),
        # 410 (Gone), 451 (Unavailable For Legal Reasons): 120s HTTP 405 (Method Not
        # Found), 421 (Misdirected Request), 501 (Not Implemented): 60s. These defaults
        # can be overridden in negative_caching_policy.
        # Corresponds to the JSON property `negativeCaching`
        # @return [Boolean]
        attr_accessor :negative_caching
        alias_method :negative_caching?, :negative_caching
      
        # Sets a cache TTL for the specified HTTP status code. negative_caching must be
        # enabled to configure negative_caching_policy. Omitting the policy and leaving
        # negative_caching enabled will use Cloud CDN's default cache TTLs. Note that
        # when specifying an explicit negative_caching_policy, you should take care to
        # specify a cache TTL for all response codes that you wish to cache. Cloud CDN
        # will not apply any default negative caching when a policy exists.
        # Corresponds to the JSON property `negativeCachingPolicy`
        # @return [Array<Google::Apis::ComputeAlpha::BackendBucketCdnPolicyNegativeCachingPolicy>]
        attr_accessor :negative_caching_policy
      
        # If true then Cloud CDN will combine multiple concurrent cache fill requests
        # into a small number of requests to the origin.
        # Corresponds to the JSON property `requestCoalescing`
        # @return [Boolean]
        attr_accessor :request_coalescing
        alias_method :request_coalescing?, :request_coalescing
      
        # Serve existing content from the cache (if available) when revalidating content
        # with the origin, or when an error is encountered when refreshing the cache.
        # This setting defines the default "max-stale" duration for any cached responses
        # that do not specify a max-stale directive. Stale responses that exceed the TTL
        # configured here will not be served. The default limit (max-stale) is 86400s (1
        # day), which will allow stale content to be served up to this limit beyond the
        # max-age (or s-max-age) of a cached response. The maximum allowed value is
        # 604800 (1 week). Set this to zero (0) to disable serve-while-stale.
        # Corresponds to the JSON property `serveWhileStale`
        # @return [Fixnum]
        attr_accessor :serve_while_stale
      
        # Maximum number of seconds the response to a signed URL request will be
        # considered fresh. After this time period, the response will be revalidated
        # before being served. Defaults to 1hr (3600s). When serving responses to signed
        # URL requests, Cloud CDN will internally behave as though all responses from
        # this backend had a "Cache-Control: public, max-age=[TTL]" header, regardless
        # of any existing Cache-Control header. The actual headers served in responses
        # will not be altered.
        # Corresponds to the JSON property `signedUrlCacheMaxAgeSec`
        # @return [Fixnum]
        attr_accessor :signed_url_cache_max_age_sec
      
        # [Output Only] Names of the keys for signing request URLs.
        # Corresponds to the JSON property `signedUrlKeyNames`
        # @return [Array<String>]
        attr_accessor :signed_url_key_names
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @bypass_cache_on_request_headers = args[:bypass_cache_on_request_headers] if args.key?(:bypass_cache_on_request_headers)
          @cache_mode = args[:cache_mode] if args.key?(:cache_mode)
          @client_ttl = args[:client_ttl] if args.key?(:client_ttl)
          @default_ttl = args[:default_ttl] if args.key?(:default_ttl)
          @max_ttl = args[:max_ttl] if args.key?(:max_ttl)
          @negative_caching = args[:negative_caching] if args.key?(:negative_caching)
          @negative_caching_policy = args[:negative_caching_policy] if args.key?(:negative_caching_policy)
          @request_coalescing = args[:request_coalescing] if args.key?(:request_coalescing)
          @serve_while_stale = args[:serve_while_stale] if args.key?(:serve_while_stale)
          @signed_url_cache_max_age_sec = args[:signed_url_cache_max_age_sec] if args.key?(:signed_url_cache_max_age_sec)
          @signed_url_key_names = args[:signed_url_key_names] if args.key?(:signed_url_key_names)
        end
      end
      
      # Bypass the cache when the specified request headers are present, e.g. Pragma
      # or Authorization headers. Values are case insensitive. The presence of such a
      # header overrides the cache_mode setting.
      class BackendBucketCdnPolicyBypassCacheOnRequestHeader
        include Google::Apis::Core::Hashable
      
        # The header field name to match on when bypassing cache. Values are case-
        # insensitive.
        # Corresponds to the JSON property `headerName`
        # @return [String]
        attr_accessor :header_name
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @header_name = args[:header_name] if args.key?(:header_name)
        end
      end
      
      # Specify CDN TTLs for response error codes.
      class BackendBucketCdnPolicyNegativeCachingPolicy
        include Google::Apis::Core::Hashable
      
        # The HTTP status code to define a TTL against. Only HTTP status codes 300, 301,
        # 308, 404, 405, 410, 421, 451 and 501 are can be specified as values, and you
        # cannot specify a status code more than once.
        # Corresponds to the JSON property `code`
        # @return [Fixnum]
        attr_accessor :code
      
        # The TTL (in seconds) for which to cache responses with the corresponding
        # status code. The maximum allowed value is 1800s (30 minutes), noting that
        # infrequently accessed objects may be evicted from the cache before the defined
        # TTL.
        # Corresponds to the JSON property `ttl`
        # @return [Fixnum]
        attr_accessor :ttl
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @code = args[:code] if args.key?(:code)
          @ttl = args[:ttl] if args.key?(:ttl)
        end
      end
      
      # Contains a list of BackendBucket resources.
      class BackendBucketList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of BackendBucket resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::BackendBucket>]
        attr_accessor :items
      
        # Type of resource.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::BackendBucketList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::BackendBucketList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Represents a Backend Service resource.
      # A backend service defines how Google Cloud load balancers distribute traffic.
      # The backend service configuration contains a set of values, such as the
      # protocol used to connect to backends, various distribution and session
      # settings, health checks, and timeouts. These settings provide fine-grained
      # control over how your load balancer behaves. Most of the settings have default
      # values that allow for easy configuration if you need to get started quickly.
      # Backend services in Google Compute Engine can be either regionally or globally
      # scoped.
      # * [Global](/compute/docs/reference/rest/`$api_version`/backendServices) * [
      # Regional](/compute/docs/reference/rest/`$api_version`/regionBackendServices)
      # For more information, see Backend Services.
      # (== resource_for `$api_version`.backendService ==)
      class BackendService
        include Google::Apis::Core::Hashable
      
        # Lifetime of cookies in seconds. Only applicable if the loadBalancingScheme is
        # EXTERNAL, INTERNAL_SELF_MANAGED, or INTERNAL_MANAGED, the protocol is HTTP or
        # HTTPS, and the sessionAffinity is GENERATED_COOKIE, or HTTP_COOKIE.
        # If set to 0, the cookie is non-persistent and lasts only until the end of the
        # browser session (or equivalent). The maximum allowed value is one day (86,400).
        # Not supported when the backend service is referenced by a URL map that is
        # bound to target gRPC proxy that has validateForProxyless field set to true.
        # Corresponds to the JSON property `affinityCookieTtlSec`
        # @return [Fixnum]
        attr_accessor :affinity_cookie_ttl_sec
      
        # The list of backends that serve this BackendService.
        # Corresponds to the JSON property `backends`
        # @return [Array<Google::Apis::ComputeAlpha::Backend>]
        attr_accessor :backends
      
        # Message containing Cloud CDN configuration for a backend service.
        # Corresponds to the JSON property `cdnPolicy`
        # @return [Google::Apis::ComputeAlpha::BackendServiceCdnPolicy]
        attr_accessor :cdn_policy
      
        # Settings controlling the volume of connections to a backend service.
        # Corresponds to the JSON property `circuitBreakers`
        # @return [Google::Apis::ComputeAlpha::CircuitBreakers]
        attr_accessor :circuit_breakers
      
        # Message containing connection draining configuration.
        # Corresponds to the JSON property `connectionDraining`
        # @return [Google::Apis::ComputeAlpha::ConnectionDraining]
        attr_accessor :connection_draining
      
        # Connection Tracking configuration for this BackendService.
        # Corresponds to the JSON property `connectionTrackingPolicy`
        # @return [Google::Apis::ComputeAlpha::BackendServiceConnectionTrackingPolicy]
        attr_accessor :connection_tracking_policy
      
        # This message defines settings for a consistent hash style load balancer.
        # Corresponds to the JSON property `consistentHash`
        # @return [Google::Apis::ComputeAlpha::ConsistentHashLoadBalancerSettings]
        attr_accessor :consistent_hash
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # Headers that the HTTP/S load balancer should add to proxied requests.
        # Corresponds to the JSON property `customRequestHeaders`
        # @return [Array<String>]
        attr_accessor :custom_request_headers
      
        # Headers that the HTTP/S load balancer should add to proxied responses.
        # Corresponds to the JSON property `customResponseHeaders`
        # @return [Array<String>]
        attr_accessor :custom_response_headers
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # [Output Only] The resource URL for the edge security policy associated with
        # this backend service.
        # Corresponds to the JSON property `edgeSecurityPolicy`
        # @return [String]
        attr_accessor :edge_security_policy
      
        # If true, enables Cloud CDN for the backend service. Only applicable if the
        # loadBalancingScheme is EXTERNAL and the protocol is HTTP or HTTPS.
        # Corresponds to the JSON property `enableCDN`
        # @return [Boolean]
        attr_accessor :enable_cdn
        alias_method :enable_cdn?, :enable_cdn
      
        # Applicable only to Failover for Internal TCP/UDP Load Balancing and Network
        # Load Balancing. On failover or failback, this field indicates whether
        # connection draining will be honored. GCP has a fixed connection draining
        # timeout of 10 minutes. A setting of true terminates existing TCP connections
        # to the active pool during failover and failback, immediately draining traffic.
        # A setting of false allows existing TCP connections to persist, even on VMs no
        # longer in the active pool, for up to the duration of the connection draining
        # timeout (10 minutes).
        # Corresponds to the JSON property `failoverPolicy`
        # @return [Google::Apis::ComputeAlpha::BackendServiceFailoverPolicy]
        attr_accessor :failover_policy
      
        # Fingerprint of this resource. A hash of the contents stored in this object.
        # This field is used in optimistic locking. This field will be ignored when
        # inserting a BackendService. An up-to-date fingerprint must be provided in
        # order to update the BackendService, otherwise the request will fail with error
        # 412 conditionNotMet.
        # To see the latest fingerprint, make a get() request to retrieve a
        # BackendService.
        # Corresponds to the JSON property `fingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :fingerprint
      
        # The list of URLs to the healthChecks, httpHealthChecks (legacy), or
        # httpsHealthChecks (legacy) resource for health checking this backend service.
        # Not all backend services support legacy health checks. See  Load balancer
        # guide. Currently, at most one health check can be specified for each backend
        # service. Backend services with instance group or zonal NEG backends must have
        # a health check. Backend services with internet or serverless NEG backends must
        # not have a health check.
        # Corresponds to the JSON property `healthChecks`
        # @return [Array<String>]
        attr_accessor :health_checks
      
        # Identity-Aware Proxy
        # Corresponds to the JSON property `iap`
        # @return [Google::Apis::ComputeAlpha::BackendServiceIap]
        attr_accessor :iap
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] Type of resource. Always compute#backendService for backend
        # services.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # Specifies the load balancer type. Choose EXTERNAL for external HTTP(S), SSL
        # Proxy, TCP Proxy and Network Load Balancing. Choose  INTERNAL for Internal TCP/
        # UDP Load Balancing. Choose  INTERNAL_MANAGED for Internal HTTP(S) Load
        # Balancing.  INTERNAL_SELF_MANAGED for Traffic Director. A backend service
        # created for one type of load balancer cannot be used with another. For more
        # information, refer to Choosing a load balancer.
        # Corresponds to the JSON property `loadBalancingScheme`
        # @return [String]
        attr_accessor :load_balancing_scheme
      
        # The load balancing algorithm used within the scope of the locality. The
        # possible values are:
        # - ROUND_ROBIN: This is a simple policy in which each healthy backend is
        # selected in round robin order. This is the default.
        # - LEAST_REQUEST: An O(1) algorithm which selects two random healthy hosts and
        # picks the host which has fewer active requests.
        # - RING_HASH: The ring/modulo hash load balancer implements consistent hashing
        # to backends. The algorithm has the property that the addition/removal of a
        # host from a set of N hosts only affects 1/N of the requests.
        # - RANDOM: The load balancer selects a random healthy host.
        # - ORIGINAL_DESTINATION: Backend host is selected based on the client
        # connection metadata, i.e., connections are opened to the same address as the
        # destination address of the incoming connection before the connection was
        # redirected to the load balancer.
        # - MAGLEV: used as a drop in replacement for the ring hash load balancer.
        # Maglev is not as stable as ring hash but has faster table lookup build times
        # and host selection times. For more information about Maglev, see https://ai.
        # google/research/pubs/pub44824
        # This field is applicable to either:
        # - A regional backend service with the service_protocol set to HTTP, HTTPS, or
        # HTTP2, and load_balancing_scheme set to INTERNAL_MANAGED.
        # - A global backend service with the load_balancing_scheme set to
        # INTERNAL_SELF_MANAGED.
        # If sessionAffinity is not NONE, and this field is not set to MAGLEV or
        # RING_HASH, session affinity settings will not take effect.
        # Only the default ROUND_ROBIN policy is supported when the backend service is
        # referenced by a URL map that is bound to target gRPC proxy that has
        # validateForProxyless field set to true.
        # Corresponds to the JSON property `localityLbPolicy`
        # @return [String]
        attr_accessor :locality_lb_policy
      
        # The available logging options for the load balancer traffic served by this
        # backend service.
        # Corresponds to the JSON property `logConfig`
        # @return [Google::Apis::ComputeAlpha::BackendServiceLogConfig]
        attr_accessor :log_config
      
        # Name of the resource. Provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # The URL of the network to which this backend service belongs. This field can
        # only be specified when the load balancing scheme is set to INTERNAL.
        # Corresponds to the JSON property `network`
        # @return [String]
        attr_accessor :network
      
        # Settings controlling the eviction of unhealthy hosts from the load balancing
        # pool for the backend service.
        # Corresponds to the JSON property `outlierDetection`
        # @return [Google::Apis::ComputeAlpha::OutlierDetection]
        attr_accessor :outlier_detection
      
        # Deprecated in favor of portName. The TCP port to connect on the backend. The
        # default value is 80.
        # This cannot be used if the loadBalancingScheme is INTERNAL (Internal TCP/UDP
        # Load Balancing).
        # Corresponds to the JSON property `port`
        # @return [Fixnum]
        attr_accessor :port
      
        # A named port on a backend instance group representing the port for
        # communication to the backend VMs in that group. Required when the
        # loadBalancingScheme is EXTERNAL (except Network Load Balancing),
        # INTERNAL_MANAGED, or  INTERNAL_SELF_MANAGED and the backends are instance
        # groups. The named port must be defined on each backend instance group. This
        # parameter has no meaning if the backends are NEGs.
        # Backend services for Internal TCP/UDP Load Balancing and Network Load
        # Balancing require you omit port_name.
        # Corresponds to the JSON property `portName`
        # @return [String]
        attr_accessor :port_name
      
        # The protocol this BackendService uses to communicate with backends.
        # Possible values are HTTP, HTTPS, HTTP2, TCP, SSL, UDP or GRPC. depending on
        # the chosen load balancer or Traffic Director configuration. Refer to the
        # documentation for the load balancer or for Traffic Director for more
        # information.
        # Must be set to GRPC when the backend service is referenced by a URL map that
        # is bound to target gRPC proxy.
        # Corresponds to the JSON property `protocol`
        # @return [String]
        attr_accessor :protocol
      
        # [Output Only] URL of the region where the regional backend service resides.
        # This field is not applicable to global backend services. You must specify this
        # field as part of the HTTP request URL. It is not settable as a field in the
        # request body.
        # Corresponds to the JSON property `region`
        # @return [String]
        attr_accessor :region
      
        # [Output Only] The resource URL for the security policy associated with this
        # backend service.
        # Corresponds to the JSON property `securityPolicy`
        # @return [String]
        attr_accessor :security_policy
      
        # The authentication and authorization settings for a BackendService.
        # Corresponds to the JSON property `securitySettings`
        # @return [Google::Apis::ComputeAlpha::SecuritySettings]
        attr_accessor :security_settings
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # Type of session affinity to use. The default is NONE.
        # When the loadBalancingScheme is EXTERNAL: * For Network Load Balancing, the
        # possible values are NONE, CLIENT_IP, CLIENT_IP_PROTO, or CLIENT_IP_PORT_PROTO.
        # * For all other load balancers that use loadBalancingScheme=EXTERNAL, the
        # possible values are NONE, CLIENT_IP, or GENERATED_COOKIE. * You can use
        # GENERATED_COOKIE if the protocol is HTTP, HTTP2, or HTTPS.
        # When the loadBalancingScheme is INTERNAL, possible values are NONE, CLIENT_IP,
        # CLIENT_IP_PROTO, or CLIENT_IP_PORT_PROTO.
        # When the loadBalancingScheme is INTERNAL_SELF_MANAGED, or INTERNAL_MANAGED,
        # possible values are NONE, CLIENT_IP, GENERATED_COOKIE, HEADER_FIELD, or
        # HTTP_COOKIE.
        # Not supported when the backend service is referenced by a URL map that is
        # bound to target gRPC proxy that has validateForProxyless field set to true.
        # Corresponds to the JSON property `sessionAffinity`
        # @return [String]
        attr_accessor :session_affinity
      
        # Subsetting options to make L4 ILB support any number of backend instances
        # Corresponds to the JSON property `subsetting`
        # @return [Google::Apis::ComputeAlpha::Subsetting]
        attr_accessor :subsetting
      
        # The backend service timeout has a different meaning depending on the type of
        # load balancer. For more information see,  Backend service settings The default
        # is 30 seconds.
        # Corresponds to the JSON property `timeoutSec`
        # @return [Fixnum]
        attr_accessor :timeout_sec
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @affinity_cookie_ttl_sec = args[:affinity_cookie_ttl_sec] if args.key?(:affinity_cookie_ttl_sec)
          @backends = args[:backends] if args.key?(:backends)
          @cdn_policy = args[:cdn_policy] if args.key?(:cdn_policy)
          @circuit_breakers = args[:circuit_breakers] if args.key?(:circuit_breakers)
          @connection_draining = args[:connection_draining] if args.key?(:connection_draining)
          @connection_tracking_policy = args[:connection_tracking_policy] if args.key?(:connection_tracking_policy)
          @consistent_hash = args[:consistent_hash] if args.key?(:consistent_hash)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @custom_request_headers = args[:custom_request_headers] if args.key?(:custom_request_headers)
          @custom_response_headers = args[:custom_response_headers] if args.key?(:custom_response_headers)
          @description = args[:description] if args.key?(:description)
          @edge_security_policy = args[:edge_security_policy] if args.key?(:edge_security_policy)
          @enable_cdn = args[:enable_cdn] if args.key?(:enable_cdn)
          @failover_policy = args[:failover_policy] if args.key?(:failover_policy)
          @fingerprint = args[:fingerprint] if args.key?(:fingerprint)
          @health_checks = args[:health_checks] if args.key?(:health_checks)
          @iap = args[:iap] if args.key?(:iap)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @load_balancing_scheme = args[:load_balancing_scheme] if args.key?(:load_balancing_scheme)
          @locality_lb_policy = args[:locality_lb_policy] if args.key?(:locality_lb_policy)
          @log_config = args[:log_config] if args.key?(:log_config)
          @name = args[:name] if args.key?(:name)
          @network = args[:network] if args.key?(:network)
          @outlier_detection = args[:outlier_detection] if args.key?(:outlier_detection)
          @port = args[:port] if args.key?(:port)
          @port_name = args[:port_name] if args.key?(:port_name)
          @protocol = args[:protocol] if args.key?(:protocol)
          @region = args[:region] if args.key?(:region)
          @security_policy = args[:security_policy] if args.key?(:security_policy)
          @security_settings = args[:security_settings] if args.key?(:security_settings)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @session_affinity = args[:session_affinity] if args.key?(:session_affinity)
          @subsetting = args[:subsetting] if args.key?(:subsetting)
          @timeout_sec = args[:timeout_sec] if args.key?(:timeout_sec)
        end
      end
      
      # Contains a list of BackendServicesScopedList.
      class BackendServiceAggregatedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of BackendServicesScopedList resources.
        # Corresponds to the JSON property `items`
        # @return [Hash<String,Google::Apis::ComputeAlpha::BackendServicesScopedList>]
        attr_accessor :items
      
        # Type of resource.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Unreachable resources.
        # Corresponds to the JSON property `unreachables`
        # @return [Array<String>]
        attr_accessor :unreachables
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::BackendServiceAggregatedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @unreachables = args[:unreachables] if args.key?(:unreachables)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::BackendServiceAggregatedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Message containing Cloud CDN configuration for a backend service.
      class BackendServiceCdnPolicy
        include Google::Apis::Core::Hashable
      
        # Bypass the cache when the specified request headers are matched - e.g. Pragma
        # or Authorization headers. Up to 5 headers can be specified. The cache is
        # bypassed for all cdnPolicy.cacheMode settings.
        # Corresponds to the JSON property `bypassCacheOnRequestHeaders`
        # @return [Array<Google::Apis::ComputeAlpha::BackendServiceCdnPolicyBypassCacheOnRequestHeader>]
        attr_accessor :bypass_cache_on_request_headers
      
        # Message containing what to include in the cache key for a request for Cloud
        # CDN.
        # Corresponds to the JSON property `cacheKeyPolicy`
        # @return [Google::Apis::ComputeAlpha::CacheKeyPolicy]
        attr_accessor :cache_key_policy
      
        # Specifies the cache setting for all responses from this backend. The possible
        # values are:
        # USE_ORIGIN_HEADERS Requires the origin to set valid caching headers to cache
        # content. Responses without these headers will not be cached at Google's edge,
        # and will require a full trip to the origin on every request, potentially
        # impacting performance and increasing load on the origin server.
        # FORCE_CACHE_ALL Cache all content, ignoring any "private", "no-store" or "no-
        # cache" directives in Cache-Control response headers. Warning: this may result
        # in Cloud CDN caching private, per-user (user identifiable) content.
        # CACHE_ALL_STATIC Automatically cache static content, including common image
        # formats, media (video and audio), and web assets (JavaScript and CSS).
        # Requests and responses that are marked as uncacheable, as well as dynamic
        # content (including HTML), will not be cached.
        # Corresponds to the JSON property `cacheMode`
        # @return [String]
        attr_accessor :cache_mode
      
        # Specifies a separate client (e.g. browser client) TTL, separate from the TTL
        # for Cloud CDN's edge caches. Leaving this empty will use the same cache TTL
        # for both Cloud CDN and the client-facing response. The maximum allowed value
        # is 86400s (1 day).
        # Corresponds to the JSON property `clientTtl`
        # @return [Fixnum]
        attr_accessor :client_ttl
      
        # Specifies the default TTL for cached content served by this origin for
        # responses that do not have an existing valid TTL (max-age or s-max-age).
        # Setting a TTL of "0" means "always revalidate". The value of defaultTTL cannot
        # be set to a value greater than that of maxTTL, but can be equal. When the
        # cacheMode is set to FORCE_CACHE_ALL, the defaultTTL will overwrite the TTL set
        # in all responses. The maximum allowed value is 31,622,400s (1 year), noting
        # that infrequently accessed objects may be evicted from the cache before the
        # defined TTL.
        # Corresponds to the JSON property `defaultTtl`
        # @return [Fixnum]
        attr_accessor :default_ttl
      
        # Specifies the maximum allowed TTL for cached content served by this origin.
        # Cache directives that attempt to set a max-age or s-maxage higher than this,
        # or an Expires header more than maxTTL seconds in the future will be capped at
        # the value of maxTTL, as if it were the value of an s-maxage Cache-Control
        # directive. Headers sent to the client will not be modified. Setting a TTL of "
        # 0" means "always revalidate". The maximum allowed value is 31,622,400s (1 year)
        # , noting that infrequently accessed objects may be evicted from the cache
        # before the defined TTL.
        # Corresponds to the JSON property `maxTtl`
        # @return [Fixnum]
        attr_accessor :max_ttl
      
        # Negative caching allows per-status code TTLs to be set, in order to apply fine-
        # grained caching for common errors or redirects. This can reduce the load on
        # your origin and improve end-user experience by reducing response latency. When
        # the cache mode is set to CACHE_ALL_STATIC or USE_ORIGIN_HEADERS, negative
        # caching applies to responses with the specified response code that lack any
        # Cache-Control, Expires, or Pragma: no-cache directives. When the cache mode is
        # set to FORCE_CACHE_ALL, negative caching applies to all responses with the
        # specified response code, and override any caching headers. By default, Cloud
        # CDN will apply the following default TTLs to these status codes: HTTP 300 (
        # Multiple Choice), 301, 308 (Permanent Redirects): 10m HTTP 404 (Not Found),
        # 410 (Gone), 451 (Unavailable For Legal Reasons): 120s HTTP 405 (Method Not
        # Found), 421 (Misdirected Request), 501 (Not Implemented): 60s. These defaults
        # can be overridden in negative_caching_policy.
        # Corresponds to the JSON property `negativeCaching`
        # @return [Boolean]
        attr_accessor :negative_caching
        alias_method :negative_caching?, :negative_caching
      
        # Sets a cache TTL for the specified HTTP status code. negative_caching must be
        # enabled to configure negative_caching_policy. Omitting the policy and leaving
        # negative_caching enabled will use Cloud CDN's default cache TTLs. Note that
        # when specifying an explicit negative_caching_policy, you should take care to
        # specify a cache TTL for all response codes that you wish to cache. Cloud CDN
        # will not apply any default negative caching when a policy exists.
        # Corresponds to the JSON property `negativeCachingPolicy`
        # @return [Array<Google::Apis::ComputeAlpha::BackendServiceCdnPolicyNegativeCachingPolicy>]
        attr_accessor :negative_caching_policy
      
        # If true then Cloud CDN will combine multiple concurrent cache fill requests
        # into a small number of requests to the origin.
        # Corresponds to the JSON property `requestCoalescing`
        # @return [Boolean]
        attr_accessor :request_coalescing
        alias_method :request_coalescing?, :request_coalescing
      
        # Serve existing content from the cache (if available) when revalidating content
        # with the origin, or when an error is encountered when refreshing the cache.
        # This setting defines the default "max-stale" duration for any cached responses
        # that do not specify a max-stale directive. Stale responses that exceed the TTL
        # configured here will not be served. The default limit (max-stale) is 86400s (1
        # day), which will allow stale content to be served up to this limit beyond the
        # max-age (or s-max-age) of a cached response. The maximum allowed value is
        # 604800 (1 week). Set this to zero (0) to disable serve-while-stale.
        # Corresponds to the JSON property `serveWhileStale`
        # @return [Fixnum]
        attr_accessor :serve_while_stale
      
        # Maximum number of seconds the response to a signed URL request will be
        # considered fresh. After this time period, the response will be revalidated
        # before being served. Defaults to 1hr (3600s). When serving responses to signed
        # URL requests, Cloud CDN will internally behave as though all responses from
        # this backend had a "Cache-Control: public, max-age=[TTL]" header, regardless
        # of any existing Cache-Control header. The actual headers served in responses
        # will not be altered.
        # Corresponds to the JSON property `signedUrlCacheMaxAgeSec`
        # @return [Fixnum]
        attr_accessor :signed_url_cache_max_age_sec
      
        # [Output Only] Names of the keys for signing request URLs.
        # Corresponds to the JSON property `signedUrlKeyNames`
        # @return [Array<String>]
        attr_accessor :signed_url_key_names
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @bypass_cache_on_request_headers = args[:bypass_cache_on_request_headers] if args.key?(:bypass_cache_on_request_headers)
          @cache_key_policy = args[:cache_key_policy] if args.key?(:cache_key_policy)
          @cache_mode = args[:cache_mode] if args.key?(:cache_mode)
          @client_ttl = args[:client_ttl] if args.key?(:client_ttl)
          @default_ttl = args[:default_ttl] if args.key?(:default_ttl)
          @max_ttl = args[:max_ttl] if args.key?(:max_ttl)
          @negative_caching = args[:negative_caching] if args.key?(:negative_caching)
          @negative_caching_policy = args[:negative_caching_policy] if args.key?(:negative_caching_policy)
          @request_coalescing = args[:request_coalescing] if args.key?(:request_coalescing)
          @serve_while_stale = args[:serve_while_stale] if args.key?(:serve_while_stale)
          @signed_url_cache_max_age_sec = args[:signed_url_cache_max_age_sec] if args.key?(:signed_url_cache_max_age_sec)
          @signed_url_key_names = args[:signed_url_key_names] if args.key?(:signed_url_key_names)
        end
      end
      
      # Bypass the cache when the specified request headers are present, e.g. Pragma
      # or Authorization headers. Values are case insensitive. The presence of such a
      # header overrides the cache_mode setting.
      class BackendServiceCdnPolicyBypassCacheOnRequestHeader
        include Google::Apis::Core::Hashable
      
        # The header field name to match on when bypassing cache. Values are case-
        # insensitive.
        # Corresponds to the JSON property `headerName`
        # @return [String]
        attr_accessor :header_name
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @header_name = args[:header_name] if args.key?(:header_name)
        end
      end
      
      # Specify CDN TTLs for response error codes.
      class BackendServiceCdnPolicyNegativeCachingPolicy
        include Google::Apis::Core::Hashable
      
        # The HTTP status code to define a TTL against. Only HTTP status codes 300, 301,
        # 308, 404, 405, 410, 421, 451 and 501 are can be specified as values, and you
        # cannot specify a status code more than once.
        # Corresponds to the JSON property `code`
        # @return [Fixnum]
        attr_accessor :code
      
        # The TTL (in seconds) for which to cache responses with the corresponding
        # status code. The maximum allowed value is 1800s (30 minutes), noting that
        # infrequently accessed objects may be evicted from the cache before the defined
        # TTL.
        # Corresponds to the JSON property `ttl`
        # @return [Fixnum]
        attr_accessor :ttl
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @code = args[:code] if args.key?(:code)
          @ttl = args[:ttl] if args.key?(:ttl)
        end
      end
      
      # Connection Tracking configuration for this BackendService.
      class BackendServiceConnectionTrackingPolicy
        include Google::Apis::Core::Hashable
      
        # Specifies connection persistence when backends are unhealthy. The default
        # value is DEFAULT_FOR_PROTOCOL.
        # If set to DEFAULT_FOR_PROTOCOL, the existing connections persist on unhealthy
        # backends only for connection-oriented protocols (TCP and SCTP) and only if the
        # Tracking Mode is PER_CONNECTION (default tracking mode) or the Session
        # Affinity is configured for 5-tuple. They do not persist for UDP.
        # If set to NEVER_PERSIST, after a backend becomes unhealthy, the existing
        # connections on the unhealthy backend are never persisted on the unhealthy
        # backend. They are always diverted to newly selected healthy backends (unless
        # all backends are unhealthy).
        # If set to ALWAYS_PERSIST, existing connections always persist on unhealthy
        # backends regardless of protocol and session affinity. It is generally not
        # recommended to use this mode overriding the default.
        # Corresponds to the JSON property `connectionPersistenceOnUnhealthyBackends`
        # @return [String]
        attr_accessor :connection_persistence_on_unhealthy_backends
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @connection_persistence_on_unhealthy_backends = args[:connection_persistence_on_unhealthy_backends] if args.key?(:connection_persistence_on_unhealthy_backends)
        end
      end
      
      # Applicable only to Failover for Internal TCP/UDP Load Balancing and Network
      # Load Balancing. On failover or failback, this field indicates whether
      # connection draining will be honored. GCP has a fixed connection draining
      # timeout of 10 minutes. A setting of true terminates existing TCP connections
      # to the active pool during failover and failback, immediately draining traffic.
      # A setting of false allows existing TCP connections to persist, even on VMs no
      # longer in the active pool, for up to the duration of the connection draining
      # timeout (10 minutes).
      class BackendServiceFailoverPolicy
        include Google::Apis::Core::Hashable
      
        # This can be set to true only if the protocol is TCP.
        # The default is false.
        # Corresponds to the JSON property `disableConnectionDrainOnFailover`
        # @return [Boolean]
        attr_accessor :disable_connection_drain_on_failover
        alias_method :disable_connection_drain_on_failover?, :disable_connection_drain_on_failover
      
        # Applicable only to Failover for Internal TCP/UDP Load Balancing and Network
        # Load Balancing, If set to true, connections to the load balancer are dropped
        # when all primary and all backup backend VMs are unhealthy.If set to false,
        # connections are distributed among all primary VMs when all primary and all
        # backup backend VMs are unhealthy. The default is false.
        # Corresponds to the JSON property `dropTrafficIfUnhealthy`
        # @return [Boolean]
        attr_accessor :drop_traffic_if_unhealthy
        alias_method :drop_traffic_if_unhealthy?, :drop_traffic_if_unhealthy
      
        # Applicable only to Failover for Internal TCP/UDP Load Balancing and Network
        # Load Balancing. The value of the field must be in the range [0, 1]. If the
        # value is 0, the load balancer performs a failover when the number of healthy
        # primary VMs equals zero. For all other values, the load balancer performs a
        # failover when the total number of healthy primary VMs is less than this ratio.
        # Corresponds to the JSON property `failoverRatio`
        # @return [Float]
        attr_accessor :failover_ratio
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @disable_connection_drain_on_failover = args[:disable_connection_drain_on_failover] if args.key?(:disable_connection_drain_on_failover)
          @drop_traffic_if_unhealthy = args[:drop_traffic_if_unhealthy] if args.key?(:drop_traffic_if_unhealthy)
          @failover_ratio = args[:failover_ratio] if args.key?(:failover_ratio)
        end
      end
      
      # 
      class BackendServiceGroupHealth
        include Google::Apis::Core::Hashable
      
        # Metadata defined as annotations on the network endpoint group.
        # Corresponds to the JSON property `annotations`
        # @return [Hash<String,String>]
        attr_accessor :annotations
      
        # Health state of the backend instances or endpoints in requested instance or
        # network endpoint group, determined based on configured health checks.
        # Corresponds to the JSON property `healthStatus`
        # @return [Array<Google::Apis::ComputeAlpha::HealthStatus>]
        attr_accessor :health_status
      
        # [Output Only] Type of resource. Always compute#backendServiceGroupHealth for
        # the health of backend services.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @annotations = args[:annotations] if args.key?(:annotations)
          @health_status = args[:health_status] if args.key?(:health_status)
          @kind = args[:kind] if args.key?(:kind)
        end
      end
      
      # Identity-Aware Proxy
      class BackendServiceIap
        include Google::Apis::Core::Hashable
      
        # Whether the serving infrastructure will authenticate and authorize all
        # incoming requests. If true, the oauth2ClientId and oauth2ClientSecret fields
        # must be non-empty.
        # Corresponds to the JSON property `enabled`
        # @return [Boolean]
        attr_accessor :enabled
        alias_method :enabled?, :enabled
      
        # OAuth2 client ID to use for the authentication flow.
        # Corresponds to the JSON property `oauth2ClientId`
        # @return [String]
        attr_accessor :oauth2_client_id
      
        # [Input Only] OAuth client info required to generate client id to be used for
        # IAP.
        # Corresponds to the JSON property `oauth2ClientInfo`
        # @return [Google::Apis::ComputeAlpha::BackendServiceIapoAuth2ClientInfo]
        attr_accessor :oauth2_client_info
      
        # OAuth2 client secret to use for the authentication flow. For security reasons,
        # this value cannot be retrieved via the API. Instead, the SHA-256 hash of the
        # value is returned in the oauth2ClientSecretSha256 field.
        # Corresponds to the JSON property `oauth2ClientSecret`
        # @return [String]
        attr_accessor :oauth2_client_secret
      
        # [Output Only] SHA256 hash value for the field oauth2_client_secret above.
        # Corresponds to the JSON property `oauth2ClientSecretSha256`
        # @return [String]
        attr_accessor :oauth2_client_secret_sha256
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @enabled = args[:enabled] if args.key?(:enabled)
          @oauth2_client_id = args[:oauth2_client_id] if args.key?(:oauth2_client_id)
          @oauth2_client_info = args[:oauth2_client_info] if args.key?(:oauth2_client_info)
          @oauth2_client_secret = args[:oauth2_client_secret] if args.key?(:oauth2_client_secret)
          @oauth2_client_secret_sha256 = args[:oauth2_client_secret_sha256] if args.key?(:oauth2_client_secret_sha256)
        end
      end
      
      # 
      class BackendServiceIapoAuth2ClientInfo
        include Google::Apis::Core::Hashable
      
        # Application name to be used in OAuth consent screen.
        # Corresponds to the JSON property `applicationName`
        # @return [String]
        attr_accessor :application_name
      
        # Name of the client to be generated. Optional - If not provided, the name will
        # be autogenerated by the backend.
        # Corresponds to the JSON property `clientName`
        # @return [String]
        attr_accessor :client_name
      
        # Developer's information to be used in OAuth consent screen.
        # Corresponds to the JSON property `developerEmailAddress`
        # @return [String]
        attr_accessor :developer_email_address
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @application_name = args[:application_name] if args.key?(:application_name)
          @client_name = args[:client_name] if args.key?(:client_name)
          @developer_email_address = args[:developer_email_address] if args.key?(:developer_email_address)
        end
      end
      
      # Contains a list of BackendService resources.
      class BackendServiceList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of BackendService resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::BackendService>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#backendServiceList for lists of
        # backend services.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::BackendServiceList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::BackendServiceList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # The available logging options for the load balancer traffic served by this
      # backend service.
      class BackendServiceLogConfig
        include Google::Apis::Core::Hashable
      
        # This field denotes whether to enable logging for the load balancer traffic
        # served by this backend service.
        # Corresponds to the JSON property `enable`
        # @return [Boolean]
        attr_accessor :enable
        alias_method :enable?, :enable
      
        # This field can only be specified if logging is enabled for this backend
        # service. The value of the field must be in [0, 1]. This configures the
        # sampling rate of requests to the load balancer where 1.0 means all logged
        # requests are reported and 0.0 means no logged requests are reported. The
        # default value is 1.0.
        # Corresponds to the JSON property `sampleRate`
        # @return [Float]
        attr_accessor :sample_rate
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @enable = args[:enable] if args.key?(:enable)
          @sample_rate = args[:sample_rate] if args.key?(:sample_rate)
        end
      end
      
      # 
      class BackendServiceReference
        include Google::Apis::Core::Hashable
      
        # 
        # Corresponds to the JSON property `backendService`
        # @return [String]
        attr_accessor :backend_service
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @backend_service = args[:backend_service] if args.key?(:backend_service)
        end
      end
      
      # 
      class BackendServicesScopedList
        include Google::Apis::Core::Hashable
      
        # A list of BackendServices contained in this scope.
        # Corresponds to the JSON property `backendServices`
        # @return [Array<Google::Apis::ComputeAlpha::BackendService>]
        attr_accessor :backend_services
      
        # Informational warning which replaces the list of backend services when the
        # list is empty.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::BackendServicesScopedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @backend_services = args[:backend_services] if args.key?(:backend_services)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # Informational warning which replaces the list of backend services when the
        # list is empty.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::BackendServicesScopedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class BfdPacket
        include Google::Apis::Core::Hashable
      
        # The Authentication Present bit of the BFD packet. This is specified in section
        # 4.1 of RFC5880
        # Corresponds to the JSON property `authenticationPresent`
        # @return [Boolean]
        attr_accessor :authentication_present
        alias_method :authentication_present?, :authentication_present
      
        # The Control Plane Independent bit of the BFD packet. This is specified in
        # section 4.1 of RFC5880
        # Corresponds to the JSON property `controlPlaneIndependent`
        # @return [Boolean]
        attr_accessor :control_plane_independent
        alias_method :control_plane_independent?, :control_plane_independent
      
        # The demand bit of the BFD packet. This is specified in section 4.1 of RFC5880
        # Corresponds to the JSON property `demand`
        # @return [Boolean]
        attr_accessor :demand
        alias_method :demand?, :demand
      
        # The diagnostic code specifies the local system's reason for the last change in
        # session state. This allows remote systems to determine the reason that the
        # previous session failed, for example. These diagnostic codes are specified in
        # section 4.1 of RFC5880
        # Corresponds to the JSON property `diagnostic`
        # @return [String]
        attr_accessor :diagnostic
      
        # The Final bit of the BFD packet. This is specified in section 4.1 of RFC5880
        # Corresponds to the JSON property `final`
        # @return [Boolean]
        attr_accessor :final
        alias_method :final?, :final
      
        # The length of the BFD Control packet in bytes. This is specified in section 4.
        # 1 of RFC5880
        # Corresponds to the JSON property `length`
        # @return [Fixnum]
        attr_accessor :length
      
        # The Required Min Echo RX Interval value in the BFD packet. This is specified
        # in section 4.1 of RFC5880
        # Corresponds to the JSON property `minEchoRxIntervalMs`
        # @return [Fixnum]
        attr_accessor :min_echo_rx_interval_ms
      
        # The Required Min RX Interval value in the BFD packet. This is specified in
        # section 4.1 of RFC5880
        # Corresponds to the JSON property `minRxIntervalMs`
        # @return [Fixnum]
        attr_accessor :min_rx_interval_ms
      
        # The Desired Min TX Interval value in the BFD packet. This is specified in
        # section 4.1 of RFC5880
        # Corresponds to the JSON property `minTxIntervalMs`
        # @return [Fixnum]
        attr_accessor :min_tx_interval_ms
      
        # The detection time multiplier of the BFD packet. This is specified in section
        # 4.1 of RFC5880
        # Corresponds to the JSON property `multiplier`
        # @return [Fixnum]
        attr_accessor :multiplier
      
        # The multipoint bit of the BFD packet. This is specified in section 4.1 of
        # RFC5880
        # Corresponds to the JSON property `multipoint`
        # @return [Boolean]
        attr_accessor :multipoint
        alias_method :multipoint?, :multipoint
      
        # The My Discriminator value in the BFD packet. This is specified in section 4.1
        # of RFC5880
        # Corresponds to the JSON property `myDiscriminator`
        # @return [Fixnum]
        attr_accessor :my_discriminator
      
        # The Poll bit of the BFD packet. This is specified in section 4.1 of RFC5880
        # Corresponds to the JSON property `poll`
        # @return [Boolean]
        attr_accessor :poll
        alias_method :poll?, :poll
      
        # The current BFD session state as seen by the transmitting system. These states
        # are specified in section 4.1 of RFC5880
        # Corresponds to the JSON property `state`
        # @return [String]
        attr_accessor :state
      
        # The version number of the BFD protocol, as specified in section 4.1 of RFC5880.
        # Corresponds to the JSON property `version`
        # @return [Fixnum]
        attr_accessor :version
      
        # The Your Discriminator value in the BFD packet. This is specified in section 4.
        # 1 of RFC5880
        # Corresponds to the JSON property `yourDiscriminator`
        # @return [Fixnum]
        attr_accessor :your_discriminator
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @authentication_present = args[:authentication_present] if args.key?(:authentication_present)
          @control_plane_independent = args[:control_plane_independent] if args.key?(:control_plane_independent)
          @demand = args[:demand] if args.key?(:demand)
          @diagnostic = args[:diagnostic] if args.key?(:diagnostic)
          @final = args[:final] if args.key?(:final)
          @length = args[:length] if args.key?(:length)
          @min_echo_rx_interval_ms = args[:min_echo_rx_interval_ms] if args.key?(:min_echo_rx_interval_ms)
          @min_rx_interval_ms = args[:min_rx_interval_ms] if args.key?(:min_rx_interval_ms)
          @min_tx_interval_ms = args[:min_tx_interval_ms] if args.key?(:min_tx_interval_ms)
          @multiplier = args[:multiplier] if args.key?(:multiplier)
          @multipoint = args[:multipoint] if args.key?(:multipoint)
          @my_discriminator = args[:my_discriminator] if args.key?(:my_discriminator)
          @poll = args[:poll] if args.key?(:poll)
          @state = args[:state] if args.key?(:state)
          @version = args[:version] if args.key?(:version)
          @your_discriminator = args[:your_discriminator] if args.key?(:your_discriminator)
        end
      end
      
      # Next free: 15
      class BfdStatus
        include Google::Apis::Core::Hashable
      
        # The BFD session initialization mode for this BGP peer. If set to ACTIVE, the
        # Cloud Router will initiate the BFD session for this BGP peer. If set to
        # PASSIVE, the Cloud Router will wait for the peer router to initiate the BFD
        # session for this BGP peer. If set to DISABLED, BFD is disabled for this BGP
        # peer.
        # Corresponds to the JSON property `bfdSessionInitializationMode`
        # @return [String]
        attr_accessor :bfd_session_initialization_mode
      
        # Unix timestamp of the most recent config update.
        # Corresponds to the JSON property `configUpdateTimestampMicros`
        # @return [Fixnum]
        attr_accessor :config_update_timestamp_micros
      
        # Control packet counts for the current BFD session.
        # Corresponds to the JSON property `controlPacketCounts`
        # @return [Google::Apis::ComputeAlpha::BfdStatusPacketCounts]
        attr_accessor :control_packet_counts
      
        # Inter-packet time interval statistics for control packets.
        # Corresponds to the JSON property `controlPacketIntervals`
        # @return [Array<Google::Apis::ComputeAlpha::PacketIntervals>]
        attr_accessor :control_packet_intervals
      
        # Echo packet counts for the current BFD session.
        # Corresponds to the JSON property `echoPacketCounts`
        # @return [Google::Apis::ComputeAlpha::BfdStatusPacketCounts]
        attr_accessor :echo_packet_counts
      
        # Inter-packet time interval statistics for echo packets.
        # Corresponds to the JSON property `echoPacketIntervals`
        # @return [Array<Google::Apis::ComputeAlpha::PacketIntervals>]
        attr_accessor :echo_packet_intervals
      
        # The diagnostic code specifies the local system's reason for the last change in
        # session state. This allows remote systems to determine the reason that the
        # previous session failed, for example. These diagnostic codes are specified in
        # section 4.1 of RFC5880
        # Corresponds to the JSON property `localDiagnostic`
        # @return [String]
        attr_accessor :local_diagnostic
      
        # The current BFD session state as seen by the transmitting system. These states
        # are specified in section 4.1 of RFC5880
        # Corresponds to the JSON property `localState`
        # @return [String]
        attr_accessor :local_state
      
        # Negotiated transmit interval for control packets.
        # Corresponds to the JSON property `negotiatedLocalControlTxIntervalMs`
        # @return [Fixnum]
        attr_accessor :negotiated_local_control_tx_interval_ms
      
        # Negotiated transmit interval for echo packets.
        # Corresponds to the JSON property `negotiatedLocalEchoTxIntervalMs`
        # @return [Fixnum]
        attr_accessor :negotiated_local_echo_tx_interval_ms
      
        # 
        # Corresponds to the JSON property `rxPacket`
        # @return [Google::Apis::ComputeAlpha::BfdPacket]
        attr_accessor :rx_packet
      
        # 
        # Corresponds to the JSON property `txPacket`
        # @return [Google::Apis::ComputeAlpha::BfdPacket]
        attr_accessor :tx_packet
      
        # Session uptime in milliseconds. Value will be 0 if session is not up.
        # Corresponds to the JSON property `uptimeMs`
        # @return [Fixnum]
        attr_accessor :uptime_ms
      
        # Indicates if echo mode is currently being used.
        # Corresponds to the JSON property `usingEchoMode`
        # @return [Boolean]
        attr_accessor :using_echo_mode
        alias_method :using_echo_mode?, :using_echo_mode
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @bfd_session_initialization_mode = args[:bfd_session_initialization_mode] if args.key?(:bfd_session_initialization_mode)
          @config_update_timestamp_micros = args[:config_update_timestamp_micros] if args.key?(:config_update_timestamp_micros)
          @control_packet_counts = args[:control_packet_counts] if args.key?(:control_packet_counts)
          @control_packet_intervals = args[:control_packet_intervals] if args.key?(:control_packet_intervals)
          @echo_packet_counts = args[:echo_packet_counts] if args.key?(:echo_packet_counts)
          @echo_packet_intervals = args[:echo_packet_intervals] if args.key?(:echo_packet_intervals)
          @local_diagnostic = args[:local_diagnostic] if args.key?(:local_diagnostic)
          @local_state = args[:local_state] if args.key?(:local_state)
          @negotiated_local_control_tx_interval_ms = args[:negotiated_local_control_tx_interval_ms] if args.key?(:negotiated_local_control_tx_interval_ms)
          @negotiated_local_echo_tx_interval_ms = args[:negotiated_local_echo_tx_interval_ms] if args.key?(:negotiated_local_echo_tx_interval_ms)
          @rx_packet = args[:rx_packet] if args.key?(:rx_packet)
          @tx_packet = args[:tx_packet] if args.key?(:tx_packet)
          @uptime_ms = args[:uptime_ms] if args.key?(:uptime_ms)
          @using_echo_mode = args[:using_echo_mode] if args.key?(:using_echo_mode)
        end
      end
      
      # 
      class BfdStatusPacketCounts
        include Google::Apis::Core::Hashable
      
        # Number of packets received since the beginning of the current BFD session.
        # Corresponds to the JSON property `numRx`
        # @return [Fixnum]
        attr_accessor :num_rx
      
        # Number of packets received that were rejected because of errors since the
        # beginning of the current BFD session.
        # Corresponds to the JSON property `numRxRejected`
        # @return [Fixnum]
        attr_accessor :num_rx_rejected
      
        # Number of packets received that were successfully processed since the
        # beginning of the current BFD session.
        # Corresponds to the JSON property `numRxSuccessful`
        # @return [Fixnum]
        attr_accessor :num_rx_successful
      
        # Number of packets transmitted since the beginning of the current BFD session.
        # Corresponds to the JSON property `numTx`
        # @return [Fixnum]
        attr_accessor :num_tx
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @num_rx = args[:num_rx] if args.key?(:num_rx)
          @num_rx_rejected = args[:num_rx_rejected] if args.key?(:num_rx_rejected)
          @num_rx_successful = args[:num_rx_successful] if args.key?(:num_rx_successful)
          @num_tx = args[:num_tx] if args.key?(:num_tx)
        end
      end
      
      # Associates `members` with a `role`.
      class Binding
        include Google::Apis::Core::Hashable
      
        # 
        # Corresponds to the JSON property `bindingId`
        # @return [String]
        attr_accessor :binding_id
      
        # Represents a textual expression in the Common Expression Language (CEL) syntax.
        # CEL is a C-like expression language. The syntax and semantics of CEL are
        # documented at https://github.com/google/cel-spec.
        # Example (Comparison):
        # title: "Summary size limit" description: "Determines if a summary is less than
        # 100 chars" expression: "document.summary.size() < 100"
        # Example (Equality):
        # title: "Requestor is owner" description: "Determines if requestor is the
        # document owner" expression: "document.owner == request.auth.claims.email"
        # Example (Logic):
        # title: "Public documents" description: "Determine whether the document should
        # be publicly visible" expression: "document.type != 'private' && document.type !
        # = 'internal'"
        # Example (Data Manipulation):
        # title: "Notification string" description: "Create a notification string with a
        # timestamp." expression: "'New message received at ' + string(document.
        # create_time)"
        # The exact variables and functions that may be referenced within an expression
        # are determined by the service that evaluates it. See the service documentation
        # for additional information.
        # Corresponds to the JSON property `condition`
        # @return [Google::Apis::ComputeAlpha::Expr]
        attr_accessor :condition
      
        # Specifies the identities requesting access for a Cloud Platform resource. `
        # members` can have the following values:
        # * `allUsers`: A special identifier that represents anyone who is on the
        # internet; with or without a Google account.
        # * `allAuthenticatedUsers`: A special identifier that represents anyone who is
        # authenticated with a Google account or a service account.
        # * `user:`emailid``: An email address that represents a specific Google account.
        # For example, `alice@example.com` .
        # * `serviceAccount:`emailid``: An email address that represents a service
        # account. For example, `my-other-app@appspot.gserviceaccount.com`.
        # * `group:`emailid``: An email address that represents a Google group. For
        # example, `admins@example.com`.
        # * `deleted:user:`emailid`?uid=`uniqueid``: An email address (plus unique
        # identifier) representing a user that has been recently deleted. For example, `
        # alice@example.com?uid=123456789012345678901`. If the user is recovered, this
        # value reverts to `user:`emailid`` and the recovered user retains the role in
        # the binding.
        # * `deleted:serviceAccount:`emailid`?uid=`uniqueid``: An email address (plus
        # unique identifier) representing a service account that has been recently
        # deleted. For example, `my-other-app@appspot.gserviceaccount.com?uid=
        # 123456789012345678901`. If the service account is undeleted, this value
        # reverts to `serviceAccount:`emailid`` and the undeleted service account
        # retains the role in the binding.
        # * `deleted:group:`emailid`?uid=`uniqueid``: An email address (plus unique
        # identifier) representing a Google group that has been recently deleted. For
        # example, `admins@example.com?uid=123456789012345678901`. If the group is
        # recovered, this value reverts to `group:`emailid`` and the recovered group
        # retains the role in the binding.
        # * `domain:`domain``: The G Suite domain (primary) that represents all the
        # users of that domain. For example, `google.com` or `example.com`.
        # Corresponds to the JSON property `members`
        # @return [Array<String>]
        attr_accessor :members
      
        # Role that is assigned to `members`. For example, `roles/viewer`, `roles/editor`
        # , or `roles/owner`.
        # Corresponds to the JSON property `role`
        # @return [String]
        attr_accessor :role
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @binding_id = args[:binding_id] if args.key?(:binding_id)
          @condition = args[:condition] if args.key?(:condition)
          @members = args[:members] if args.key?(:members)
          @role = args[:role] if args.key?(:role)
        end
      end
      
      # 
      class BulkInsertInstanceResource
        include Google::Apis::Core::Hashable
      
        # The maximum number of instances to create.
        # Corresponds to the JSON property `count`
        # @return [Fixnum]
        attr_accessor :count
      
        # Represents an Instance resource.
        # An instance is a virtual machine that is hosted on Google Cloud Platform. For
        # more information, read Virtual Machine Instances. (== resource_for `$
        # api_version`.instances ==)
        # Corresponds to the JSON property `instance`
        # @return [Google::Apis::ComputeAlpha::Instance]
        attr_accessor :instance
      
        # 
        # Corresponds to the JSON property `instanceProperties`
        # @return [Google::Apis::ComputeAlpha::InstanceProperties]
        attr_accessor :instance_properties
      
        # Configuration for location policy among multiple possible locations (e.g.
        # preferences for zone selection among zones in a single region).
        # Corresponds to the JSON property `locationPolicy`
        # @return [Google::Apis::ComputeAlpha::LocationPolicy]
        attr_accessor :location_policy
      
        # The minimum number of instances to create. If no min_count is specified then
        # count is used as the default value. If min_count instances cannot be created,
        # then no instances will be created.
        # Corresponds to the JSON property `minCount`
        # @return [Fixnum]
        attr_accessor :min_count
      
        # The string pattern used for the names of the VMs. Either name_pattern or
        # predefined_names must be set. The pattern should contain one consecutive
        # sequence of placeholder hash characters (#) with each character corresponding
        # to one digit of the generated instance name. Example: name_pattern of inst-####
        # will generate instance names like inst-0001, inst-0002, ... . If there
        # already exist instance(s) whose names match the name pattern in the same
        # project and zone, then the generated instance numbers will start after the
        # biggest existing number. For example, if there exists an instance with name
        # inst-0050, then instance names generated using the pattern inst-#### will be
        # inst-0051, inst-0052, etc. The name pattern placeholder #...# can contain up
        # to 18 characters.
        # Corresponds to the JSON property `namePattern`
        # @return [String]
        attr_accessor :name_pattern
      
        # List of predefined names. The number of names provided must be equal to count.
        # Corresponds to the JSON property `predefinedNames`
        # @return [Array<String>]
        attr_accessor :predefined_names
      
        # Specifies the instance template from which to create instances. You may
        # combine sourceInstanceTemplate with instanceProperties to override specific
        # values from an existing instance template. Bulk API follows the semantics of
        # JSON Merge Patch described by RFC 7396.
        # It can be a full or partial URL. For example, the following are all valid URLs
        # to an instance template:
        # - https://www.googleapis.com/compute/v1/projects/project/global/
        # instanceTemplates/instanceTemplate
        # - projects/project/global/instanceTemplates/instanceTemplate
        # - global/instanceTemplates/instanceTemplate
        # This field is optional.
        # Corresponds to the JSON property `sourceInstanceTemplate`
        # @return [String]
        attr_accessor :source_instance_template
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @count = args[:count] if args.key?(:count)
          @instance = args[:instance] if args.key?(:instance)
          @instance_properties = args[:instance_properties] if args.key?(:instance_properties)
          @location_policy = args[:location_policy] if args.key?(:location_policy)
          @min_count = args[:min_count] if args.key?(:min_count)
          @name_pattern = args[:name_pattern] if args.key?(:name_pattern)
          @predefined_names = args[:predefined_names] if args.key?(:predefined_names)
          @source_instance_template = args[:source_instance_template] if args.key?(:source_instance_template)
        end
      end
      
      # 
      class CacheInvalidationRule
        include Google::Apis::Core::Hashable
      
        # If set, this invalidation rule will only apply to requests with a Host header
        # matching host.
        # Corresponds to the JSON property `host`
        # @return [String]
        attr_accessor :host
      
        # 
        # Corresponds to the JSON property `path`
        # @return [String]
        attr_accessor :path
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @host = args[:host] if args.key?(:host)
          @path = args[:path] if args.key?(:path)
        end
      end
      
      # Message containing what to include in the cache key for a request for Cloud
      # CDN.
      class CacheKeyPolicy
        include Google::Apis::Core::Hashable
      
        # If true, requests to different hosts will be cached separately.
        # Corresponds to the JSON property `includeHost`
        # @return [Boolean]
        attr_accessor :include_host
        alias_method :include_host?, :include_host
      
        # If true, http and https requests will be cached separately.
        # Corresponds to the JSON property `includeProtocol`
        # @return [Boolean]
        attr_accessor :include_protocol
        alias_method :include_protocol?, :include_protocol
      
        # If true, include query string parameters in the cache key according to
        # query_string_whitelist and query_string_blacklist. If neither is set, the
        # entire query string will be included. If false, the query string will be
        # excluded from the cache key entirely.
        # Corresponds to the JSON property `includeQueryString`
        # @return [Boolean]
        attr_accessor :include_query_string
        alias_method :include_query_string?, :include_query_string
      
        # Names of query string parameters to exclude in cache keys. All other
        # parameters will be included. Either specify query_string_whitelist or
        # query_string_blacklist, not both. '&' and '=' will be percent encoded and not
        # treated as delimiters.
        # Corresponds to the JSON property `queryStringBlacklist`
        # @return [Array<String>]
        attr_accessor :query_string_blacklist
      
        # Names of query string parameters to include in cache keys. All other
        # parameters will be excluded. Either specify query_string_whitelist or
        # query_string_blacklist, not both. '&' and '=' will be percent encoded and not
        # treated as delimiters.
        # Corresponds to the JSON property `queryStringWhitelist`
        # @return [Array<String>]
        attr_accessor :query_string_whitelist
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @include_host = args[:include_host] if args.key?(:include_host)
          @include_protocol = args[:include_protocol] if args.key?(:include_protocol)
          @include_query_string = args[:include_query_string] if args.key?(:include_query_string)
          @query_string_blacklist = args[:query_string_blacklist] if args.key?(:query_string_blacklist)
          @query_string_whitelist = args[:query_string_whitelist] if args.key?(:query_string_whitelist)
        end
      end
      
      # [Deprecated] gRPC call credentials to access the SDS server. gRPC call
      # credentials to access the SDS server.
      class CallCredentials
        include Google::Apis::Core::Hashable
      
        # The type of call credentials to use for GRPC requests to the SDS server. This
        # field can be set to one of the following:
        # - GCE_VM: The local GCE VM service account credentials are used to access the
        # SDS server.
        # - FROM_PLUGIN: Custom authenticator credentials are used to access the SDS
        # server.
        # Corresponds to the JSON property `callCredentialType`
        # @return [String]
        attr_accessor :call_credential_type
      
        # [Deprecated] Custom authenticator credentials. Custom authenticator
        # credentials.
        # Corresponds to the JSON property `fromPlugin`
        # @return [Google::Apis::ComputeAlpha::MetadataCredentialsFromPlugin]
        attr_accessor :from_plugin
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @call_credential_type = args[:call_credential_type] if args.key?(:call_credential_type)
          @from_plugin = args[:from_plugin] if args.key?(:from_plugin)
        end
      end
      
      # [Deprecated] gRPC channel credentials to access the SDS server. gRPC channel
      # credentials to access the SDS server.
      class ChannelCredentials
        include Google::Apis::Core::Hashable
      
        # [Deprecated] The paths to the mounted TLS Certificates and private key. The
        # paths to the mounted TLS Certificates and private key.
        # Corresponds to the JSON property `certificates`
        # @return [Google::Apis::ComputeAlpha::TlsCertificatePaths]
        attr_accessor :certificates
      
        # The channel credentials to access the SDS server. This field can be set to one
        # of the following: CERTIFICATES: Use TLS certificates to access the SDS server.
        # GCE_VM: Use local GCE VM credentials to access the SDS server.
        # Corresponds to the JSON property `channelCredentialType`
        # @return [String]
        attr_accessor :channel_credential_type
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @certificates = args[:certificates] if args.key?(:certificates)
          @channel_credential_type = args[:channel_credential_type] if args.key?(:channel_credential_type)
        end
      end
      
      # Settings controlling the volume of connections to a backend service.
      class CircuitBreakers
        include Google::Apis::Core::Hashable
      
        # A Duration represents a fixed-length span of time represented as a count of
        # seconds and fractions of seconds at nanosecond resolution. It is independent
        # of any calendar and concepts like "day" or "month". Range is approximately 10,
        # 000 years.
        # Corresponds to the JSON property `connectTimeout`
        # @return [Google::Apis::ComputeAlpha::Duration]
        attr_accessor :connect_timeout
      
        # The maximum number of connections to the backend service. If not specified,
        # there is no limit.
        # Corresponds to the JSON property `maxConnections`
        # @return [Fixnum]
        attr_accessor :max_connections
      
        # The maximum number of pending requests allowed to the backend service. If not
        # specified, there is no limit.
        # Corresponds to the JSON property `maxPendingRequests`
        # @return [Fixnum]
        attr_accessor :max_pending_requests
      
        # The maximum number of parallel requests that allowed to the backend service.
        # If not specified, there is no limit.
        # Corresponds to the JSON property `maxRequests`
        # @return [Fixnum]
        attr_accessor :max_requests
      
        # Maximum requests for a single connection to the backend service. This
        # parameter is respected by both the HTTP/1.1 and HTTP/2 implementations. If not
        # specified, there is no limit. Setting this parameter to 1 will effectively
        # disable keep alive.
        # Corresponds to the JSON property `maxRequestsPerConnection`
        # @return [Fixnum]
        attr_accessor :max_requests_per_connection
      
        # The maximum number of parallel retries allowed to the backend cluster. If not
        # specified, the default is 1.
        # Corresponds to the JSON property `maxRetries`
        # @return [Fixnum]
        attr_accessor :max_retries
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @connect_timeout = args[:connect_timeout] if args.key?(:connect_timeout)
          @max_connections = args[:max_connections] if args.key?(:max_connections)
          @max_pending_requests = args[:max_pending_requests] if args.key?(:max_pending_requests)
          @max_requests = args[:max_requests] if args.key?(:max_requests)
          @max_requests_per_connection = args[:max_requests_per_connection] if args.key?(:max_requests_per_connection)
          @max_retries = args[:max_retries] if args.key?(:max_retries)
        end
      end
      
      # [Deprecated] The client side authentication settings for connection
      # originating from the backend service. the backend service.
      class ClientTlsSettings
        include Google::Apis::Core::Hashable
      
        # [Deprecated] The TLS settings for the client or server. The TLS settings for
        # the client or server.
        # Corresponds to the JSON property `clientTlsContext`
        # @return [Google::Apis::ComputeAlpha::TlsContext]
        attr_accessor :client_tls_context
      
        # Indicates whether connections to this port should be secured using TLS. The
        # value of this field determines how TLS is enforced. This can be set to one of
        # the following values: DISABLE: Do not setup a TLS connection to the backends.
        # SIMPLE: Originate a TLS connection to the backends. MUTUAL: Secure connections
        # to the backends using mutual TLS by presenting client certificates for
        # authentication.
        # Corresponds to the JSON property `mode`
        # @return [String]
        attr_accessor :mode
      
        # SNI string to present to the server during TLS handshake. This field is
        # applicable only when mode is SIMPLE or MUTUAL.
        # Corresponds to the JSON property `sni`
        # @return [String]
        attr_accessor :sni
      
        # A list of alternate names to verify the subject identity in the certificate.If
        # specified, the proxy will verify that the server certificate's subject alt
        # name matches one of the specified values. This field is applicable only when
        # mode is SIMPLE or MUTUAL.
        # Corresponds to the JSON property `subjectAltNames`
        # @return [Array<String>]
        attr_accessor :subject_alt_names
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @client_tls_context = args[:client_tls_context] if args.key?(:client_tls_context)
          @mode = args[:mode] if args.key?(:mode)
          @sni = args[:sni] if args.key?(:sni)
          @subject_alt_names = args[:subject_alt_names] if args.key?(:subject_alt_names)
        end
      end
      
      # Represents a regional Commitment resource.
      # Creating a commitment resource means that you are purchasing a committed use
      # contract with an explicit start and end time. You can create commitments based
      # on vCPUs and memory usage and receive discounted rates. For full details, read
      # Signing Up for Committed Use Discounts. (== resource_for `$api_version`.
      # regionCommitments ==)
      class Commitment
        include Google::Apis::Core::Hashable
      
        # The category of the commitment. Category MACHINE specifies commitments
        # composed of machine resources such as VCPU or MEMORY, listed in resources.
        # Category LICENSE specifies commitments composed of software licenses, listed
        # in licenseResources. Note that only MACHINE commitments should have a Type
        # specified.
        # Corresponds to the JSON property `category`
        # @return [String]
        attr_accessor :category
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # [Output Only] Commitment end time in RFC3339 text format.
        # Corresponds to the JSON property `endTimestamp`
        # @return [String]
        attr_accessor :end_timestamp
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] Type of the resource. Always compute#commitment for commitments.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # Commitment for a particular license resource.
        # Corresponds to the JSON property `licenseResource`
        # @return [Google::Apis::ComputeAlpha::LicenseResourceCommitment]
        attr_accessor :license_resource
      
        # Name of the resource. Provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # The plan for this commitment, which determines duration and discount rate. The
        # currently supported plans are TWELVE_MONTH (1 year), and THIRTY_SIX_MONTH (3
        # years).
        # Corresponds to the JSON property `plan`
        # @return [String]
        attr_accessor :plan
      
        # [Output Only] URL of the region where this commitment may be used.
        # Corresponds to the JSON property `region`
        # @return [String]
        attr_accessor :region
      
        # List of reservations in this commitment.
        # Corresponds to the JSON property `reservations`
        # @return [Array<Google::Apis::ComputeAlpha::Reservation>]
        attr_accessor :reservations
      
        # A list of commitment amounts for particular resources. Note that VCPU and
        # MEMORY resource commitments must occur together.
        # Corresponds to the JSON property `resources`
        # @return [Array<Google::Apis::ComputeAlpha::ResourceCommitment>]
        attr_accessor :resources
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # [Output Only] Commitment start time in RFC3339 text format.
        # Corresponds to the JSON property `startTimestamp`
        # @return [String]
        attr_accessor :start_timestamp
      
        # [Output Only] Status of the commitment with regards to eventual expiration (
        # each commitment has an end date defined). One of the following values:
        # NOT_YET_ACTIVE, ACTIVE, EXPIRED.
        # Corresponds to the JSON property `status`
        # @return [String]
        attr_accessor :status
      
        # [Output Only] An optional, human-readable explanation of the status.
        # Corresponds to the JSON property `statusMessage`
        # @return [String]
        attr_accessor :status_message
      
        # The type of commitment, which affects the discount rate and the eligible
        # resources. Type MEMORY_OPTIMIZED specifies a commitment that will only apply
        # to memory optimized machines. Type ACCELERATOR_OPTIMIZED specifies a
        # commitment that will only apply to accelerator optimized machines.
        # Corresponds to the JSON property `type`
        # @return [String]
        attr_accessor :type
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @category = args[:category] if args.key?(:category)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @end_timestamp = args[:end_timestamp] if args.key?(:end_timestamp)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @license_resource = args[:license_resource] if args.key?(:license_resource)
          @name = args[:name] if args.key?(:name)
          @plan = args[:plan] if args.key?(:plan)
          @region = args[:region] if args.key?(:region)
          @reservations = args[:reservations] if args.key?(:reservations)
          @resources = args[:resources] if args.key?(:resources)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @start_timestamp = args[:start_timestamp] if args.key?(:start_timestamp)
          @status = args[:status] if args.key?(:status)
          @status_message = args[:status_message] if args.key?(:status_message)
          @type = args[:type] if args.key?(:type)
        end
      end
      
      # 
      class CommitmentAggregatedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of CommitmentsScopedList resources.
        # Corresponds to the JSON property `items`
        # @return [Hash<String,Google::Apis::ComputeAlpha::CommitmentsScopedList>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#commitmentAggregatedList for
        # aggregated lists of commitments.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Unreachable resources.
        # Corresponds to the JSON property `unreachables`
        # @return [Array<String>]
        attr_accessor :unreachables
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::CommitmentAggregatedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @unreachables = args[:unreachables] if args.key?(:unreachables)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::CommitmentAggregatedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Contains a list of Commitment resources.
      class CommitmentList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of Commitment resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::Commitment>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#commitmentList for lists of
        # commitments.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::CommitmentList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::CommitmentList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class CommitmentsScopedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] A list of commitments contained in this scope.
        # Corresponds to the JSON property `commitments`
        # @return [Array<Google::Apis::ComputeAlpha::Commitment>]
        attr_accessor :commitments
      
        # [Output Only] Informational warning which replaces the list of commitments
        # when the list is empty.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::CommitmentsScopedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @commitments = args[:commitments] if args.key?(:commitments)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning which replaces the list of commitments
        # when the list is empty.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::CommitmentsScopedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # A condition to be met.
      class Condition
        include Google::Apis::Core::Hashable
      
        # Trusted attributes supplied by the IAM system.
        # Corresponds to the JSON property `iam`
        # @return [String]
        attr_accessor :iam
      
        # An operator to apply the subject with.
        # Corresponds to the JSON property `op`
        # @return [String]
        attr_accessor :op
      
        # Trusted attributes discharged by the service.
        # Corresponds to the JSON property `svc`
        # @return [String]
        attr_accessor :svc
      
        # Trusted attributes supplied by any service that owns resources and uses the
        # IAM system for access control.
        # Corresponds to the JSON property `sys`
        # @return [String]
        attr_accessor :sys
      
        # The objects of the condition.
        # Corresponds to the JSON property `values`
        # @return [Array<String>]
        attr_accessor :values
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @iam = args[:iam] if args.key?(:iam)
          @op = args[:op] if args.key?(:op)
          @svc = args[:svc] if args.key?(:svc)
          @sys = args[:sys] if args.key?(:sys)
          @values = args[:values] if args.key?(:values)
        end
      end
      
      # A set of Confidential Instance options.
      class ConfidentialInstanceConfig
        include Google::Apis::Core::Hashable
      
        # Defines whether the instance should have confidential compute enabled.
        # Corresponds to the JSON property `enableConfidentialCompute`
        # @return [Boolean]
        attr_accessor :enable_confidential_compute
        alias_method :enable_confidential_compute?, :enable_confidential_compute
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @enable_confidential_compute = args[:enable_confidential_compute] if args.key?(:enable_confidential_compute)
        end
      end
      
      # Message containing connection draining configuration.
      class ConnectionDraining
        include Google::Apis::Core::Hashable
      
        # The amount of time in seconds to allow existing connections to persist while
        # on unhealthy backend VMs. Only applicable if the protocol is not UDP. The
        # valid range is [0, 3600].
        # Corresponds to the JSON property `drainingTimeoutSec`
        # @return [Fixnum]
        attr_accessor :draining_timeout_sec
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @draining_timeout_sec = args[:draining_timeout_sec] if args.key?(:draining_timeout_sec)
        end
      end
      
      # This message defines settings for a consistent hash style load balancer.
      class ConsistentHashLoadBalancerSettings
        include Google::Apis::Core::Hashable
      
        # The information about the HTTP Cookie on which the hash function is based for
        # load balancing policies that use a consistent hash.
        # Corresponds to the JSON property `httpCookie`
        # @return [Google::Apis::ComputeAlpha::ConsistentHashLoadBalancerSettingsHttpCookie]
        attr_accessor :http_cookie
      
        # The hash based on the value of the specified header field. This field is
        # applicable if the sessionAffinity is set to HEADER_FIELD.
        # Corresponds to the JSON property `httpHeaderName`
        # @return [String]
        attr_accessor :http_header_name
      
        # The minimum number of virtual nodes to use for the hash ring. Defaults to 1024.
        # Larger ring sizes result in more granular load distributions. If the number
        # of hosts in the load balancing pool is larger than the ring size, each host
        # will be assigned a single virtual node.
        # Corresponds to the JSON property `minimumRingSize`
        # @return [Fixnum]
        attr_accessor :minimum_ring_size
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @http_cookie = args[:http_cookie] if args.key?(:http_cookie)
          @http_header_name = args[:http_header_name] if args.key?(:http_header_name)
          @minimum_ring_size = args[:minimum_ring_size] if args.key?(:minimum_ring_size)
        end
      end
      
      # The information about the HTTP Cookie on which the hash function is based for
      # load balancing policies that use a consistent hash.
      class ConsistentHashLoadBalancerSettingsHttpCookie
        include Google::Apis::Core::Hashable
      
        # Name of the cookie.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # Path to set for the cookie.
        # Corresponds to the JSON property `path`
        # @return [String]
        attr_accessor :path
      
        # A Duration represents a fixed-length span of time represented as a count of
        # seconds and fractions of seconds at nanosecond resolution. It is independent
        # of any calendar and concepts like "day" or "month". Range is approximately 10,
        # 000 years.
        # Corresponds to the JSON property `ttl`
        # @return [Google::Apis::ComputeAlpha::Duration]
        attr_accessor :ttl
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @name = args[:name] if args.key?(:name)
          @path = args[:path] if args.key?(:path)
          @ttl = args[:ttl] if args.key?(:ttl)
        end
      end
      
      # The specification for allowing client side cross-origin requests. Please see
      # W3C Recommendation for Cross Origin Resource Sharing
      class CorsPolicy
        include Google::Apis::Core::Hashable
      
        # In response to a preflight request, setting this to true indicates that the
        # actual request can include user credentials. This translates to the Access-
        # Control-Allow-Credentials header.
        # Default is false.
        # Corresponds to the JSON property `allowCredentials`
        # @return [Boolean]
        attr_accessor :allow_credentials
        alias_method :allow_credentials?, :allow_credentials
      
        # Specifies the content for the Access-Control-Allow-Headers header.
        # Corresponds to the JSON property `allowHeaders`
        # @return [Array<String>]
        attr_accessor :allow_headers
      
        # Specifies the content for the Access-Control-Allow-Methods header.
        # Corresponds to the JSON property `allowMethods`
        # @return [Array<String>]
        attr_accessor :allow_methods
      
        # Specifies the regualar expression patterns that match allowed origins. For
        # regular expression grammar please see en.cppreference.com/w/cpp/regex/
        # ecmascript
        # An origin is allowed if it matches either an item in allowOrigins or an item
        # in allowOriginRegexes.
        # Corresponds to the JSON property `allowOriginRegexes`
        # @return [Array<String>]
        attr_accessor :allow_origin_regexes
      
        # Specifies the list of origins that will be allowed to do CORS requests.
        # An origin is allowed if it matches either an item in allowOrigins or an item
        # in allowOriginRegexes.
        # Corresponds to the JSON property `allowOrigins`
        # @return [Array<String>]
        attr_accessor :allow_origins
      
        # If true, specifies the CORS policy is disabled. The default value of false,
        # which indicates that the CORS policy is in effect.
        # Corresponds to the JSON property `disabled`
        # @return [Boolean]
        attr_accessor :disabled
        alias_method :disabled?, :disabled
      
        # Specifies the content for the Access-Control-Expose-Headers header.
        # Corresponds to the JSON property `exposeHeaders`
        # @return [Array<String>]
        attr_accessor :expose_headers
      
        # Specifies how long results of a preflight request can be cached in seconds.
        # This translates to the Access-Control-Max-Age header.
        # Corresponds to the JSON property `maxAge`
        # @return [Fixnum]
        attr_accessor :max_age
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @allow_credentials = args[:allow_credentials] if args.key?(:allow_credentials)
          @allow_headers = args[:allow_headers] if args.key?(:allow_headers)
          @allow_methods = args[:allow_methods] if args.key?(:allow_methods)
          @allow_origin_regexes = args[:allow_origin_regexes] if args.key?(:allow_origin_regexes)
          @allow_origins = args[:allow_origins] if args.key?(:allow_origins)
          @disabled = args[:disabled] if args.key?(:disabled)
          @expose_headers = args[:expose_headers] if args.key?(:expose_headers)
          @max_age = args[:max_age] if args.key?(:max_age)
        end
      end
      
      # 
      class CustomerEncryptionKey
        include Google::Apis::Core::Hashable
      
        # The name of the encryption key that is stored in Google Cloud KMS.
        # Corresponds to the JSON property `kmsKeyName`
        # @return [String]
        attr_accessor :kms_key_name
      
        # The service account being used for the encryption request for the given KMS
        # key. If absent, the Compute Engine default service account is used.
        # Corresponds to the JSON property `kmsKeyServiceAccount`
        # @return [String]
        attr_accessor :kms_key_service_account
      
        # Specifies a 256-bit customer-supplied encryption key, encoded in RFC 4648
        # base64 to either encrypt or decrypt this resource.
        # Corresponds to the JSON property `rawKey`
        # @return [String]
        attr_accessor :raw_key
      
        # Specifies an RFC 4648 base64 encoded, RSA-wrapped 2048-bit customer-supplied
        # encryption key to either encrypt or decrypt this resource.
        # The key must meet the following requirements before you can provide it to
        # Compute Engine:
        # - The key is wrapped using a RSA public key certificate provided by Google.
        # - After being wrapped, the key must be encoded in RFC 4648 base64 encoding.
        # Gets the RSA public key certificate provided by Google at:
        # https://cloud-certs.storage.googleapis.com/google-cloud-csek-ingress.pem
        # Corresponds to the JSON property `rsaEncryptedKey`
        # @return [String]
        attr_accessor :rsa_encrypted_key
      
        # [Output only] The RFC 4648 base64 encoded SHA-256 hash of the customer-
        # supplied encryption key that protects this resource.
        # Corresponds to the JSON property `sha256`
        # @return [String]
        attr_accessor :sha256
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @kms_key_name = args[:kms_key_name] if args.key?(:kms_key_name)
          @kms_key_service_account = args[:kms_key_service_account] if args.key?(:kms_key_service_account)
          @raw_key = args[:raw_key] if args.key?(:raw_key)
          @rsa_encrypted_key = args[:rsa_encrypted_key] if args.key?(:rsa_encrypted_key)
          @sha256 = args[:sha256] if args.key?(:sha256)
        end
      end
      
      # 
      class CustomerEncryptionKeyProtectedDisk
        include Google::Apis::Core::Hashable
      
        # Decrypts data associated with the disk with a customer-supplied encryption key.
        # Corresponds to the JSON property `diskEncryptionKey`
        # @return [Google::Apis::ComputeAlpha::CustomerEncryptionKey]
        attr_accessor :disk_encryption_key
      
        # Specifies a valid partial or full URL to an existing Persistent Disk resource.
        # This field is only applicable for persistent disks.
        # Corresponds to the JSON property `source`
        # @return [String]
        attr_accessor :source
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @disk_encryption_key = args[:disk_encryption_key] if args.key?(:disk_encryption_key)
          @source = args[:source] if args.key?(:source)
        end
      end
      
      # Deprecation status for a public resource.
      class DeprecationStatus
        include Google::Apis::Core::Hashable
      
        # An optional RFC3339 timestamp on or after which the state of this resource is
        # intended to change to DELETED. This is only informational and the status will
        # not change unless the client explicitly changes it.
        # Corresponds to the JSON property `deleted`
        # @return [String]
        attr_accessor :deleted
      
        # An optional RFC3339 timestamp on or after which the state of this resource is
        # intended to change to DEPRECATED. This is only informational and the status
        # will not change unless the client explicitly changes it.
        # Corresponds to the JSON property `deprecated`
        # @return [String]
        attr_accessor :deprecated
      
        # An optional RFC3339 timestamp on or after which the state of this resource is
        # intended to change to OBSOLETE. This is only informational and the status will
        # not change unless the client explicitly changes it.
        # Corresponds to the JSON property `obsolete`
        # @return [String]
        attr_accessor :obsolete
      
        # The URL of the suggested replacement for a deprecated resource. The suggested
        # replacement resource must be the same kind of resource as the deprecated
        # resource.
        # Corresponds to the JSON property `replacement`
        # @return [String]
        attr_accessor :replacement
      
        # The deprecation state of this resource. This can be ACTIVE, DEPRECATED,
        # OBSOLETE, or DELETED. Operations which communicate the end of life date for an
        # image, can use ACTIVE. Operations which create a new resource using a
        # DEPRECATED resource will return successfully, but with a warning indicating
        # the deprecated resource and recommending its replacement. Operations which use
        # OBSOLETE or DELETED resources will be rejected and result in an error.
        # Corresponds to the JSON property `state`
        # @return [String]
        attr_accessor :state
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @deleted = args[:deleted] if args.key?(:deleted)
          @deprecated = args[:deprecated] if args.key?(:deprecated)
          @obsolete = args[:obsolete] if args.key?(:obsolete)
          @replacement = args[:replacement] if args.key?(:replacement)
          @state = args[:state] if args.key?(:state)
        end
      end
      
      # Represents a Persistent Disk resource.
      # Google Compute Engine has two Disk resources:
      # * [Zonal](/compute/docs/reference/rest/`$api_version`/disks) * [Regional](/
      # compute/docs/reference/rest/`$api_version`/regionDisks)
      # Persistent disks are required for running your VM instances. Create both boot
      # and non-boot (data) persistent disks. For more information, read Persistent
      # Disks. For more storage options, read Storage options.
      # The disks resource represents a zonal persistent disk. For more information,
      # read Zonal persistent disks.
      # The regionDisks resource represents a regional persistent disk. For more
      # information, read  Regional resources. (== resource_for `$api_version`.disks ==
      # ) (== resource_for `$api_version`.regionDisks ==)
      class Disk
        include Google::Apis::Core::Hashable
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # Encrypts the disk using a customer-supplied encryption key.
        # After you encrypt a disk with a customer-supplied key, you must provide the
        # same key if you use the disk later (e.g. to create a disk snapshot, to create
        # a disk image, to create a machine image, or to attach the disk to a virtual
        # machine).
        # Customer-supplied encryption keys do not protect access to metadata of the
        # disk.
        # If you do not provide an encryption key when creating the disk, then the disk
        # will be encrypted using an automatically generated key and you do not need to
        # provide a key to use the disk later.
        # Corresponds to the JSON property `diskEncryptionKey`
        # @return [Google::Apis::ComputeAlpha::CustomerEncryptionKey]
        attr_accessor :disk_encryption_key
      
        # Specifies whether the disk restored from a source snapshot should erase
        # Windows specific VSS signature.
        # Corresponds to the JSON property `eraseWindowsVssSignature`
        # @return [Boolean]
        attr_accessor :erase_windows_vss_signature
        alias_method :erase_windows_vss_signature?, :erase_windows_vss_signature
      
        # A list of features to enable on the guest operating system. Applicable only
        # for bootable images. Read  Enabling guest operating system features to see a
        # list of available options.
        # Corresponds to the JSON property `guestOsFeatures`
        # @return [Array<Google::Apis::ComputeAlpha::GuestOsFeature>]
        attr_accessor :guest_os_features
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # Specifies the disk interface to use for attaching this disk, which is either
        # SCSI or NVME. The default is SCSI.
        # Corresponds to the JSON property `interface`
        # @return [String]
        attr_accessor :interface
      
        # [Output Only] Type of the resource. Always compute#disk for disks.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # A fingerprint for the labels being applied to this disk, which is essentially
        # a hash of the labels set used for optimistic locking. The fingerprint is
        # initially generated by Compute Engine and changes after every request to
        # modify or update labels. You must always provide an up-to-date fingerprint
        # hash in order to update or change labels, otherwise the request will fail with
        # error 412 conditionNotMet.
        # To see the latest fingerprint, make a get() request to retrieve a disk.
        # Corresponds to the JSON property `labelFingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :label_fingerprint
      
        # Labels to apply to this disk. These can be later modified by the setLabels
        # method.
        # Corresponds to the JSON property `labels`
        # @return [Hash<String,String>]
        attr_accessor :labels
      
        # [Output Only] Last attach timestamp in RFC3339 text format.
        # Corresponds to the JSON property `lastAttachTimestamp`
        # @return [String]
        attr_accessor :last_attach_timestamp
      
        # [Output Only] Last detach timestamp in RFC3339 text format.
        # Corresponds to the JSON property `lastDetachTimestamp`
        # @return [String]
        attr_accessor :last_detach_timestamp
      
        # Integer license codes indicating which licenses are attached to this disk.
        # Corresponds to the JSON property `licenseCodes`
        # @return [Array<Fixnum>]
        attr_accessor :license_codes
      
        # A list of publicly visible licenses. Reserved for Google's use.
        # Corresponds to the JSON property `licenses`
        # @return [Array<String>]
        attr_accessor :licenses
      
        # Indicates whether or not the disk can be read/write attached to more than one
        # instance.
        # Corresponds to the JSON property `multiWriter`
        # @return [Boolean]
        attr_accessor :multi_writer
        alias_method :multi_writer?, :multi_writer
      
        # Name of the resource. Provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # Internal use only.
        # Corresponds to the JSON property `options`
        # @return [String]
        attr_accessor :options
      
        # Physical block size of the persistent disk, in bytes. If not present in a
        # request, a default value is used. The currently supported size is 4096, other
        # sizes may be added in the future. If an unsupported value is requested, the
        # error message will list the supported values for the caller's project.
        # Corresponds to the JSON property `physicalBlockSizeBytes`
        # @return [Fixnum]
        attr_accessor :physical_block_size_bytes
      
        # Indicates how many IOPS must be provisioned for the disk.
        # Corresponds to the JSON property `provisionedIops`
        # @return [Fixnum]
        attr_accessor :provisioned_iops
      
        # [Output Only] URL of the region where the disk resides. Only applicable for
        # regional resources. You must specify this field as part of the HTTP request
        # URL. It is not settable as a field in the request body.
        # Corresponds to the JSON property `region`
        # @return [String]
        attr_accessor :region
      
        # URLs of the zones where the disk should be replicated to. Only applicable for
        # regional resources.
        # Corresponds to the JSON property `replicaZones`
        # @return [Array<String>]
        attr_accessor :replica_zones
      
        # Resource policies applied to this disk for automatic snapshot creations.
        # Corresponds to the JSON property `resourcePolicies`
        # @return [Array<String>]
        attr_accessor :resource_policies
      
        # [Output Only] Reserved for future use.
        # Corresponds to the JSON property `satisfiesPzs`
        # @return [Boolean]
        attr_accessor :satisfies_pzs
        alias_method :satisfies_pzs?, :satisfies_pzs
      
        # [Output Only] Server-defined fully-qualified URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource's resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # Size, in GB, of the persistent disk. You can specify this field when creating
        # a persistent disk using the sourceImage, sourceSnapshot, or sourceDisk
        # parameter, or specify it alone to create an empty persistent disk.
        # If you specify this field along with a source, the value of sizeGb must not be
        # less than the size of the source. Acceptable values are 1 to 65536, inclusive.
        # Corresponds to the JSON property `sizeGb`
        # @return [Fixnum]
        attr_accessor :size_gb
      
        # The source disk used to create this disk. You can provide this as a partial or
        # full URL to the resource. For example, the following are valid values:
        # - https://www.googleapis.com/compute/v1/projects/project/zones/zone/disks/disk
        # - projects/project/zones/zone/disks/disk
        # - zones/zone/disks/disk
        # Corresponds to the JSON property `sourceDisk`
        # @return [String]
        attr_accessor :source_disk
      
        # [Output Only] The unique ID of the disk used to create this disk. This value
        # identifies the exact disk that was used to create this persistent disk. For
        # example, if you created the persistent disk from a disk that was later deleted
        # and recreated under the same name, the source disk ID would identify the exact
        # version of the disk that was used.
        # Corresponds to the JSON property `sourceDiskId`
        # @return [String]
        attr_accessor :source_disk_id
      
        # The source image used to create this disk. If the source image is deleted,
        # this field will not be set.
        # To create a disk with one of the public operating system images, specify the
        # image by its family name. For example, specify family/debian-9 to use the
        # latest Debian 9 image:
        # projects/debian-cloud/global/images/family/debian-9
        # Alternatively, use a specific version of a public operating system image:
        # projects/debian-cloud/global/images/debian-9-stretch-vYYYYMMDD
        # To create a disk with a custom image that you created, specify the image name
        # in the following format:
        # global/images/my-custom-image
        # You can also specify a custom image by its image family, which returns the
        # latest version of the image in that family. Replace the image name with family/
        # family-name:
        # global/images/family/my-image-family
        # Corresponds to the JSON property `sourceImage`
        # @return [String]
        attr_accessor :source_image
      
        # The customer-supplied encryption key of the source image. Required if the
        # source image is protected by a customer-supplied encryption key.
        # Corresponds to the JSON property `sourceImageEncryptionKey`
        # @return [Google::Apis::ComputeAlpha::CustomerEncryptionKey]
        attr_accessor :source_image_encryption_key
      
        # [Output Only] The ID value of the image used to create this disk. This value
        # identifies the exact image that was used to create this persistent disk. For
        # example, if you created the persistent disk from an image that was later
        # deleted and recreated under the same name, the source image ID would identify
        # the exact version of the image that was used.
        # Corresponds to the JSON property `sourceImageId`
        # @return [String]
        attr_accessor :source_image_id
      
        # [Deprecated] The source in-place snapshot used to create this disk. You can
        # provide this as a partial or full URL to the resource. For example, the
        # following are valid values:
        # - https://www.googleapis.com/compute/v1/projects/project/global/
        # inPlaceSnapshots/inPlaceSnapshots
        # - projects/project/global/inPlaceSnapshots/inPlaceSnapshots
        # - global/inPlaceSnapshots/inPlaceSnapshots
        # Corresponds to the JSON property `sourceInPlaceSnapshot`
        # @return [String]
        attr_accessor :source_in_place_snapshot
      
        # [Deprecated] [Output Only] The unique ID of the in-place snapshot used to
        # create this disk. This value identifies the exact in-place snapshot that was
        # used to create this persistent disk. For example, if you created the
        # persistent disk from an in-place snapshot that was later deleted and recreated
        # under the same name, the source in-place snapshot ID would identify the exact
        # version of the in-place snapshot that was used.
        # Corresponds to the JSON property `sourceInPlaceSnapshotId`
        # @return [String]
        attr_accessor :source_in_place_snapshot_id
      
        # The source instant snapshot used to create this disk. You can provide this as
        # a partial or full URL to the resource. For example, the following are valid
        # values:
        # - https://www.googleapis.com/compute/v1/projects/project/zones/zone/
        # instantSnapshots/instantSnapshot
        # - projects/project/zones/zone/instantSnapshots/instantSnapshot
        # - zones/zone/instantSnapshots/instantSnapshot
        # Corresponds to the JSON property `sourceInstantSnapshot`
        # @return [String]
        attr_accessor :source_instant_snapshot
      
        # [Output Only] The unique ID of the instant snapshot used to create this disk.
        # This value identifies the exact instant snapshot that was used to create this
        # persistent disk. For example, if you created the persistent disk from an
        # instant snapshot that was later deleted and recreated under the same name, the
        # source instant snapshot ID would identify the exact version of the instant
        # snapshot that was used.
        # Corresponds to the JSON property `sourceInstantSnapshotId`
        # @return [String]
        attr_accessor :source_instant_snapshot_id
      
        # The source snapshot used to create this disk. You can provide this as a
        # partial or full URL to the resource. For example, the following are valid
        # values:
        # - https://www.googleapis.com/compute/v1/projects/project/global/snapshots/
        # snapshot
        # - projects/project/global/snapshots/snapshot
        # - global/snapshots/snapshot
        # Corresponds to the JSON property `sourceSnapshot`
        # @return [String]
        attr_accessor :source_snapshot
      
        # The customer-supplied encryption key of the source snapshot. Required if the
        # source snapshot is protected by a customer-supplied encryption key.
        # Corresponds to the JSON property `sourceSnapshotEncryptionKey`
        # @return [Google::Apis::ComputeAlpha::CustomerEncryptionKey]
        attr_accessor :source_snapshot_encryption_key
      
        # [Output Only] The unique ID of the snapshot used to create this disk. This
        # value identifies the exact snapshot that was used to create this persistent
        # disk. For example, if you created the persistent disk from a snapshot that was
        # later deleted and recreated under the same name, the source snapshot ID would
        # identify the exact version of the snapshot that was used.
        # Corresponds to the JSON property `sourceSnapshotId`
        # @return [String]
        attr_accessor :source_snapshot_id
      
        # The full Google Cloud Storage URI where the disk image is stored. This file
        # must be a gzip-compressed tarball whose name ends in .tar.gz or virtual
        # machine disk whose name ends in vmdk. Valid URIs may start with gs:// or https:
        # //storage.googleapis.com/.
        # Corresponds to the JSON property `sourceStorageObject`
        # @return [String]
        attr_accessor :source_storage_object
      
        # [Output Only] The status of disk creation. CREATING: Disk is provisioning.
        # RESTORING: Source data is being copied into the disk. FAILED: Disk creation
        # failed. READY: Disk is ready for use. DELETING: Disk is deleting.
        # Corresponds to the JSON property `status`
        # @return [String]
        attr_accessor :status
      
        # [Deprecated] Storage type of the persistent disk.
        # Corresponds to the JSON property `storageType`
        # @return [String]
        attr_accessor :storage_type
      
        # URL of the disk type resource describing which disk type to use to create the
        # disk. Provide this when creating the disk. For example: projects/project/zones/
        # zone/diskTypes/pd-standard  or pd-ssd
        # Corresponds to the JSON property `type`
        # @return [String]
        attr_accessor :type
      
        # A list of publicly visible user-licenses. Unlike regular licenses, user
        # provided licenses can be modified after the disk is created. This includes a
        # list of URLs to the license resource. For example, to provide a debian license:
        # https://www.googleapis.com/compute/v1/projects/debian-cloud/global/licenses/
        # debian-9-stretch
        # Corresponds to the JSON property `userLicenses`
        # @return [Array<String>]
        attr_accessor :user_licenses
      
        # [Output Only] Links to the users of the disk (attached instances) in form:
        # projects/project/zones/zone/instances/instance
        # Corresponds to the JSON property `users`
        # @return [Array<String>]
        attr_accessor :users
      
        # [Output Only] URL of the zone where the disk resides. You must specify this
        # field as part of the HTTP request URL. It is not settable as a field in the
        # request body.
        # Corresponds to the JSON property `zone`
        # @return [String]
        attr_accessor :zone
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @disk_encryption_key = args[:disk_encryption_key] if args.key?(:disk_encryption_key)
          @erase_windows_vss_signature = args[:erase_windows_vss_signature] if args.key?(:erase_windows_vss_signature)
          @guest_os_features = args[:guest_os_features] if args.key?(:guest_os_features)
          @id = args[:id] if args.key?(:id)
          @interface = args[:interface] if args.key?(:interface)
          @kind = args[:kind] if args.key?(:kind)
          @label_fingerprint = args[:label_fingerprint] if args.key?(:label_fingerprint)
          @labels = args[:labels] if args.key?(:labels)
          @last_attach_timestamp = args[:last_attach_timestamp] if args.key?(:last_attach_timestamp)
          @last_detach_timestamp = args[:last_detach_timestamp] if args.key?(:last_detach_timestamp)
          @license_codes = args[:license_codes] if args.key?(:license_codes)
          @licenses = args[:licenses] if args.key?(:licenses)
          @multi_writer = args[:multi_writer] if args.key?(:multi_writer)
          @name = args[:name] if args.key?(:name)
          @options = args[:options] if args.key?(:options)
          @physical_block_size_bytes = args[:physical_block_size_bytes] if args.key?(:physical_block_size_bytes)
          @provisioned_iops = args[:provisioned_iops] if args.key?(:provisioned_iops)
          @region = args[:region] if args.key?(:region)
          @replica_zones = args[:replica_zones] if args.key?(:replica_zones)
          @resource_policies = args[:resource_policies] if args.key?(:resource_policies)
          @satisfies_pzs = args[:satisfies_pzs] if args.key?(:satisfies_pzs)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @size_gb = args[:size_gb] if args.key?(:size_gb)
          @source_disk = args[:source_disk] if args.key?(:source_disk)
          @source_disk_id = args[:source_disk_id] if args.key?(:source_disk_id)
          @source_image = args[:source_image] if args.key?(:source_image)
          @source_image_encryption_key = args[:source_image_encryption_key] if args.key?(:source_image_encryption_key)
          @source_image_id = args[:source_image_id] if args.key?(:source_image_id)
          @source_in_place_snapshot = args[:source_in_place_snapshot] if args.key?(:source_in_place_snapshot)
          @source_in_place_snapshot_id = args[:source_in_place_snapshot_id] if args.key?(:source_in_place_snapshot_id)
          @source_instant_snapshot = args[:source_instant_snapshot] if args.key?(:source_instant_snapshot)
          @source_instant_snapshot_id = args[:source_instant_snapshot_id] if args.key?(:source_instant_snapshot_id)
          @source_snapshot = args[:source_snapshot] if args.key?(:source_snapshot)
          @source_snapshot_encryption_key = args[:source_snapshot_encryption_key] if args.key?(:source_snapshot_encryption_key)
          @source_snapshot_id = args[:source_snapshot_id] if args.key?(:source_snapshot_id)
          @source_storage_object = args[:source_storage_object] if args.key?(:source_storage_object)
          @status = args[:status] if args.key?(:status)
          @storage_type = args[:storage_type] if args.key?(:storage_type)
          @type = args[:type] if args.key?(:type)
          @user_licenses = args[:user_licenses] if args.key?(:user_licenses)
          @users = args[:users] if args.key?(:users)
          @zone = args[:zone] if args.key?(:zone)
        end
      end
      
      # 
      class DiskAggregatedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of DisksScopedList resources.
        # Corresponds to the JSON property `items`
        # @return [Hash<String,Google::Apis::ComputeAlpha::DisksScopedList>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#diskAggregatedList for
        # aggregated lists of persistent disks.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Unreachable resources.
        # Corresponds to the JSON property `unreachables`
        # @return [Array<String>]
        attr_accessor :unreachables
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::DiskAggregatedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @unreachables = args[:unreachables] if args.key?(:unreachables)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::DiskAggregatedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # A specification of the desired way to instantiate a disk in the instance
      # template when its created from a source instance.
      class DiskInstantiationConfig
        include Google::Apis::Core::Hashable
      
        # Specifies whether the disk will be auto-deleted when the instance is deleted (
        # but not when the disk is detached from the instance).
        # Corresponds to the JSON property `autoDelete`
        # @return [Boolean]
        attr_accessor :auto_delete
        alias_method :auto_delete?, :auto_delete
      
        # The custom source image to be used to restore this disk when instantiating
        # this instance template.
        # Corresponds to the JSON property `customImage`
        # @return [String]
        attr_accessor :custom_image
      
        # Specifies the device name of the disk to which the configurations apply to.
        # Corresponds to the JSON property `deviceName`
        # @return [String]
        attr_accessor :device_name
      
        # Specifies whether to include the disk and what image to use. Possible values
        # are:
        # - source-image: to use the same image that was used to create the source
        # instance's corresponding disk. Applicable to the boot disk and additional read-
        # write disks.
        # - source-image-family: to use the same image family that was used to create
        # the source instance's corresponding disk. Applicable to the boot disk and
        # additional read-write disks.
        # - custom-image: to use a user-provided image url for disk creation. Applicable
        # to the boot disk and additional read-write disks.
        # - attach-read-only: to attach a read-only disk. Applicable to read-only disks.
        # - do-not-include: to exclude a disk from the template. Applicable to
        # additional read-write disks, local SSDs, and read-only disks.
        # Corresponds to the JSON property `instantiateFrom`
        # @return [String]
        attr_accessor :instantiate_from
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @auto_delete = args[:auto_delete] if args.key?(:auto_delete)
          @custom_image = args[:custom_image] if args.key?(:custom_image)
          @device_name = args[:device_name] if args.key?(:device_name)
          @instantiate_from = args[:instantiate_from] if args.key?(:instantiate_from)
        end
      end
      
      # A list of Disk resources.
      class DiskList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of Disk resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::Disk>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#diskList for lists of disks.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::DiskList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::DiskList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class DiskMoveRequest
        include Google::Apis::Core::Hashable
      
        # The URL of the destination zone to move the disk. This can be a full or
        # partial URL. For example, the following are all valid URLs to a zone:
        # - https://www.googleapis.com/compute/v1/projects/project/zones/zone
        # - projects/project/zones/zone
        # - zones/zone
        # Corresponds to the JSON property `destinationZone`
        # @return [String]
        attr_accessor :destination_zone
      
        # The URL of the target disk to move. This can be a full or partial URL. For
        # example, the following are all valid URLs to a disk:
        # - https://www.googleapis.com/compute/v1/projects/project/zones/zone/disks/disk
        # - projects/project/zones/zone/disks/disk
        # - zones/zone/disks/disk
        # Corresponds to the JSON property `targetDisk`
        # @return [String]
        attr_accessor :target_disk
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @destination_zone = args[:destination_zone] if args.key?(:destination_zone)
          @target_disk = args[:target_disk] if args.key?(:target_disk)
        end
      end
      
      # Represents a Disk Type resource.
      # Google Compute Engine has two Disk Type resources:
      # * [Regional](/compute/docs/reference/rest/`$api_version`/regionDiskTypes) * [
      # Zonal](/compute/docs/reference/rest/`$api_version`/diskTypes)
      # You can choose from a variety of disk types based on your needs. For more
      # information, read Storage options.
      # The diskTypes resource represents disk types for a zonal persistent disk. For
      # more information, read Zonal persistent disks.
      # The regionDiskTypes resource represents disk types for a regional persistent
      # disk. For more information, read Regional persistent disks. (== resource_for `$
      # api_version`.diskTypes ==) (== resource_for `$api_version`.regionDiskTypes ==)
      class DiskType
        include Google::Apis::Core::Hashable
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # [Output Only] Server-defined default disk size in GB.
        # Corresponds to the JSON property `defaultDiskSizeGb`
        # @return [Fixnum]
        attr_accessor :default_disk_size_gb
      
        # Deprecation status for a public resource.
        # Corresponds to the JSON property `deprecated`
        # @return [Google::Apis::ComputeAlpha::DeprecationStatus]
        attr_accessor :deprecated
      
        # [Output Only] An optional description of this resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] Type of the resource. Always compute#diskType for disk types.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] Name of the resource.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # [Output Only] URL of the region where the disk type resides. Only applicable
        # for regional resources. You must specify this field as part of the HTTP
        # request URL. It is not settable as a field in the request body.
        # Corresponds to the JSON property `region`
        # @return [String]
        attr_accessor :region
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # [Output Only] An optional textual description of the valid disk size, such as "
        # 10GB-10TB".
        # Corresponds to the JSON property `validDiskSize`
        # @return [String]
        attr_accessor :valid_disk_size
      
        # [Output Only] URL of the zone where the disk type resides. You must specify
        # this field as part of the HTTP request URL. It is not settable as a field in
        # the request body.
        # Corresponds to the JSON property `zone`
        # @return [String]
        attr_accessor :zone
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @default_disk_size_gb = args[:default_disk_size_gb] if args.key?(:default_disk_size_gb)
          @deprecated = args[:deprecated] if args.key?(:deprecated)
          @description = args[:description] if args.key?(:description)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @name = args[:name] if args.key?(:name)
          @region = args[:region] if args.key?(:region)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @valid_disk_size = args[:valid_disk_size] if args.key?(:valid_disk_size)
          @zone = args[:zone] if args.key?(:zone)
        end
      end
      
      # 
      class DiskTypeAggregatedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of DiskTypesScopedList resources.
        # Corresponds to the JSON property `items`
        # @return [Hash<String,Google::Apis::ComputeAlpha::DiskTypesScopedList>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#diskTypeAggregatedList.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Unreachable resources.
        # Corresponds to the JSON property `unreachables`
        # @return [Array<String>]
        attr_accessor :unreachables
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::DiskTypeAggregatedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @unreachables = args[:unreachables] if args.key?(:unreachables)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::DiskTypeAggregatedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Contains a list of disk types.
      class DiskTypeList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of DiskType resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::DiskType>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#diskTypeList for disk types.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::DiskTypeList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::DiskTypeList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class DiskTypesScopedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] A list of disk types contained in this scope.
        # Corresponds to the JSON property `diskTypes`
        # @return [Array<Google::Apis::ComputeAlpha::DiskType>]
        attr_accessor :disk_types
      
        # [Output Only] Informational warning which replaces the list of disk types when
        # the list is empty.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::DiskTypesScopedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @disk_types = args[:disk_types] if args.key?(:disk_types)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning which replaces the list of disk types when
        # the list is empty.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::DiskTypesScopedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class DisksAddResourcePoliciesRequest
        include Google::Apis::Core::Hashable
      
        # Resource policies to be added to this disk. Currently you can only specify one
        # policy here.
        # Corresponds to the JSON property `resourcePolicies`
        # @return [Array<String>]
        attr_accessor :resource_policies
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @resource_policies = args[:resource_policies] if args.key?(:resource_policies)
        end
      end
      
      # 
      class DisksRemoveResourcePoliciesRequest
        include Google::Apis::Core::Hashable
      
        # Resource policies to be removed from this disk.
        # Corresponds to the JSON property `resourcePolicies`
        # @return [Array<String>]
        attr_accessor :resource_policies
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @resource_policies = args[:resource_policies] if args.key?(:resource_policies)
        end
      end
      
      # 
      class DisksResizeRequest
        include Google::Apis::Core::Hashable
      
        # The new size of the persistent disk, which is specified in GB.
        # Corresponds to the JSON property `sizeGb`
        # @return [Fixnum]
        attr_accessor :size_gb
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @size_gb = args[:size_gb] if args.key?(:size_gb)
        end
      end
      
      # 
      class DisksScopedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] A list of disks contained in this scope.
        # Corresponds to the JSON property `disks`
        # @return [Array<Google::Apis::ComputeAlpha::Disk>]
        attr_accessor :disks
      
        # [Output Only] Informational warning which replaces the list of disks when the
        # list is empty.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::DisksScopedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @disks = args[:disks] if args.key?(:disks)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning which replaces the list of disks when the
        # list is empty.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::DisksScopedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # A set of Display Device options
      class DisplayDevice
        include Google::Apis::Core::Hashable
      
        # Defines whether the instance has Display enabled.
        # Corresponds to the JSON property `enableDisplay`
        # @return [Boolean]
        attr_accessor :enable_display
        alias_method :enable_display?, :enable_display
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @enable_display = args[:enable_display] if args.key?(:enable_display)
        end
      end
      
      # 
      class DistributionPolicy
        include Google::Apis::Core::Hashable
      
        # The distribution shape to which the group converges either proactively or on
        # resize events (depending on the value set in updatePolicy.
        # instanceRedistributionType).
        # Corresponds to the JSON property `targetShape`
        # @return [String]
        attr_accessor :target_shape
      
        # Zones where the regional managed instance group will create and manage its
        # instances.
        # Corresponds to the JSON property `zones`
        # @return [Array<Google::Apis::ComputeAlpha::DistributionPolicyZoneConfiguration>]
        attr_accessor :zones
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @target_shape = args[:target_shape] if args.key?(:target_shape)
          @zones = args[:zones] if args.key?(:zones)
        end
      end
      
      # 
      class DistributionPolicyZoneConfiguration
        include Google::Apis::Core::Hashable
      
        # The URL of the zone. The zone must exist in the region where the managed
        # instance group is located.
        # Corresponds to the JSON property `zone`
        # @return [String]
        attr_accessor :zone
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @zone = args[:zone] if args.key?(:zone)
        end
      end
      
      # A Duration represents a fixed-length span of time represented as a count of
      # seconds and fractions of seconds at nanosecond resolution. It is independent
      # of any calendar and concepts like "day" or "month". Range is approximately 10,
      # 000 years.
      class Duration
        include Google::Apis::Core::Hashable
      
        # Span of time that's a fraction of a second at nanosecond resolution. Durations
        # less than one second are represented with a 0 `seconds` field and a positive `
        # nanos` field. Must be from 0 to 999,999,999 inclusive.
        # Corresponds to the JSON property `nanos`
        # @return [Fixnum]
        attr_accessor :nanos
      
        # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000
        # inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24
        # hr/day * 365.25 days/year * 10000 years
        # Corresponds to the JSON property `seconds`
        # @return [Fixnum]
        attr_accessor :seconds
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @nanos = args[:nanos] if args.key?(:nanos)
          @seconds = args[:seconds] if args.key?(:seconds)
        end
      end
      
      # 
      class ExchangedPeeringRoute
        include Google::Apis::Core::Hashable
      
        # The destination range of the route.
        # Corresponds to the JSON property `destRange`
        # @return [String]
        attr_accessor :dest_range
      
        # True if the peering route has been imported from a peer. The actual import
        # happens if the field networkPeering.importCustomRoutes is true for this
        # network, and networkPeering.exportCustomRoutes is true for the peer network,
        # and the import does not result in a route conflict.
        # Corresponds to the JSON property `imported`
        # @return [Boolean]
        attr_accessor :imported
        alias_method :imported?, :imported
      
        # The region of peering route next hop, only applies to dynamic routes.
        # Corresponds to the JSON property `nextHopRegion`
        # @return [String]
        attr_accessor :next_hop_region
      
        # The priority of the peering route.
        # Corresponds to the JSON property `priority`
        # @return [Fixnum]
        attr_accessor :priority
      
        # The type of the peering route.
        # Corresponds to the JSON property `type`
        # @return [String]
        attr_accessor :type
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @dest_range = args[:dest_range] if args.key?(:dest_range)
          @imported = args[:imported] if args.key?(:imported)
          @next_hop_region = args[:next_hop_region] if args.key?(:next_hop_region)
          @priority = args[:priority] if args.key?(:priority)
          @type = args[:type] if args.key?(:type)
        end
      end
      
      # 
      class ExchangedPeeringRoutesList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of ExchangedPeeringRoute resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::ExchangedPeeringRoute>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#exchangedPeeringRoutesList for
        # exchanged peering routes lists.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::ExchangedPeeringRoutesList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::ExchangedPeeringRoutesList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Represents a textual expression in the Common Expression Language (CEL) syntax.
      # CEL is a C-like expression language. The syntax and semantics of CEL are
      # documented at https://github.com/google/cel-spec.
      # Example (Comparison):
      # title: "Summary size limit" description: "Determines if a summary is less than
      # 100 chars" expression: "document.summary.size() < 100"
      # Example (Equality):
      # title: "Requestor is owner" description: "Determines if requestor is the
      # document owner" expression: "document.owner == request.auth.claims.email"
      # Example (Logic):
      # title: "Public documents" description: "Determine whether the document should
      # be publicly visible" expression: "document.type != 'private' && document.type !
      # = 'internal'"
      # Example (Data Manipulation):
      # title: "Notification string" description: "Create a notification string with a
      # timestamp." expression: "'New message received at ' + string(document.
      # create_time)"
      # The exact variables and functions that may be referenced within an expression
      # are determined by the service that evaluates it. See the service documentation
      # for additional information.
      class Expr
        include Google::Apis::Core::Hashable
      
        # Optional. Description of the expression. This is a longer text which describes
        # the expression, e.g. when hovered over it in a UI.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # Textual representation of an expression in Common Expression Language syntax.
        # Corresponds to the JSON property `expression`
        # @return [String]
        attr_accessor :expression
      
        # Optional. String indicating the location of the expression for error reporting,
        # e.g. a file name and a position in the file.
        # Corresponds to the JSON property `location`
        # @return [String]
        attr_accessor :location
      
        # Optional. Title for the expression, i.e. a short string describing its purpose.
        # This can be used e.g. in UIs which allow to enter the expression.
        # Corresponds to the JSON property `title`
        # @return [String]
        attr_accessor :title
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @description = args[:description] if args.key?(:description)
          @expression = args[:expression] if args.key?(:expression)
          @location = args[:location] if args.key?(:location)
          @title = args[:title] if args.key?(:title)
        end
      end
      
      # Represents an external VPN gateway.
      # External VPN gateway is the on-premises VPN gateway(s) or another cloud
      # provider's VPN gateway that connects to your Google Cloud VPN gateway.
      # To create a highly available VPN from Google Cloud Platform to your VPN
      # gateway or another cloud provider's VPN gateway, you must create a external
      # VPN gateway resource with information about the other gateway.
      # For more information about using external VPN gateways, see  Creating an HA
      # VPN gateway and tunnel pair to a peer VPN. (== resource_for `$api_version`.
      # externalVpnGateways ==)
      class ExternalVpnGateway
        include Google::Apis::Core::Hashable
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # List of interfaces for this external VPN gateway.
        # Corresponds to the JSON property `interfaces`
        # @return [Array<Google::Apis::ComputeAlpha::ExternalVpnGatewayInterface>]
        attr_accessor :interfaces
      
        # [Output Only] Type of the resource. Always compute#externalVpnGateway for
        # externalVpnGateways.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # A fingerprint for the labels being applied to this ExternalVpnGateway, which
        # is essentially a hash of the labels set used for optimistic locking. The
        # fingerprint is initially generated by Compute Engine and changes after every
        # request to modify or update labels. You must always provide an up-to-date
        # fingerprint hash in order to update or change labels, otherwise the request
        # will fail with error 412 conditionNotMet.
        # To see the latest fingerprint, make a get() request to retrieve an
        # ExternalVpnGateway.
        # Corresponds to the JSON property `labelFingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :label_fingerprint
      
        # Labels for this resource. These can only be added or modified by the setLabels
        # method. Each label key/value pair must comply with RFC1035. Label values may
        # be empty.
        # Corresponds to the JSON property `labels`
        # @return [Hash<String,String>]
        attr_accessor :labels
      
        # Name of the resource. Provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # Indicates the user-supplied redundancy type of this external VPN gateway.
        # Corresponds to the JSON property `redundancyType`
        # @return [String]
        attr_accessor :redundancy_type
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @id = args[:id] if args.key?(:id)
          @interfaces = args[:interfaces] if args.key?(:interfaces)
          @kind = args[:kind] if args.key?(:kind)
          @label_fingerprint = args[:label_fingerprint] if args.key?(:label_fingerprint)
          @labels = args[:labels] if args.key?(:labels)
          @name = args[:name] if args.key?(:name)
          @redundancy_type = args[:redundancy_type] if args.key?(:redundancy_type)
          @self_link = args[:self_link] if args.key?(:self_link)
        end
      end
      
      # The interface for the external VPN gateway.
      class ExternalVpnGatewayInterface
        include Google::Apis::Core::Hashable
      
        # The numeric ID of this interface. The allowed input values for this id for
        # different redundancy types of external VPN gateway:
        # SINGLE_IP_INTERNALLY_REDUNDANT - 0 TWO_IPS_REDUNDANCY - 0, 1
        # FOUR_IPS_REDUNDANCY - 0, 1, 2, 3
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # IP address of the interface in the external VPN gateway. Only IPv4 is
        # supported. This IP address can be either from your on-premise gateway or
        # another Cloud provider's VPN gateway, it cannot be an IP address from Google
        # Compute Engine.
        # Corresponds to the JSON property `ipAddress`
        # @return [String]
        attr_accessor :ip_address
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @ip_address = args[:ip_address] if args.key?(:ip_address)
        end
      end
      
      # Response to the list request, and contains a list of externalVpnGateways.
      class ExternalVpnGatewayList
        include Google::Apis::Core::Hashable
      
        # 
        # Corresponds to the JSON property `etag`
        # @return [String]
        attr_accessor :etag
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of ExternalVpnGateway resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::ExternalVpnGateway>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#externalVpnGatewayList  for
        # lists of externalVpnGateways.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::ExternalVpnGatewayList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @etag = args[:etag] if args.key?(:etag)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::ExternalVpnGatewayList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class FileContentBuffer
        include Google::Apis::Core::Hashable
      
        # The raw content in the secure keys file.
        # Corresponds to the JSON property `content`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :content
      
        # The file type of source file.
        # Corresponds to the JSON property `fileType`
        # @return [String]
        attr_accessor :file_type
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @content = args[:content] if args.key?(:content)
          @file_type = args[:file_type] if args.key?(:file_type)
        end
      end
      
      # Represents a Firewall Rule resource.
      # Firewall rules allow or deny ingress traffic to, and egress traffic from your
      # instances. For more information, read Firewall rules.
      class Firewall
        include Google::Apis::Core::Hashable
      
        # The list of ALLOW rules specified by this firewall. Each rule specifies a
        # protocol and port-range tuple that describes a permitted connection.
        # Corresponds to the JSON property `allowed`
        # @return [Array<Google::Apis::ComputeAlpha::Firewall::Allowed>]
        attr_accessor :allowed
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # The list of DENY rules specified by this firewall. Each rule specifies a
        # protocol and port-range tuple that describes a denied connection.
        # Corresponds to the JSON property `denied`
        # @return [Array<Google::Apis::ComputeAlpha::Firewall::Denied>]
        attr_accessor :denied
      
        # An optional description of this resource. Provide this field when you create
        # the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # If destination ranges are specified, the firewall rule applies only to traffic
        # that has destination IP address in these ranges. These ranges must be
        # expressed in CIDR format. Only IPv4 is supported.
        # Corresponds to the JSON property `destinationRanges`
        # @return [Array<String>]
        attr_accessor :destination_ranges
      
        # Direction of traffic to which this firewall applies, either `INGRESS` or `
        # EGRESS`. The default is `INGRESS`. For `INGRESS` traffic, you cannot specify
        # the destinationRanges field, and for `EGRESS` traffic, you cannot specify the
        # sourceRanges or sourceTags fields.
        # Corresponds to the JSON property `direction`
        # @return [String]
        attr_accessor :direction
      
        # Denotes whether the firewall rule is disabled. When set to true, the firewall
        # rule is not enforced and the network behaves as if it did not exist. If this
        # is unspecified, the firewall rule will be enabled.
        # Corresponds to the JSON property `disabled`
        # @return [Boolean]
        attr_accessor :disabled
        alias_method :disabled?, :disabled
      
        # Deprecated in favor of enable in LogConfig. This field denotes whether to
        # enable logging for a particular firewall rule. If logging is enabled, logs
        # will be exported t Cloud Logging.
        # Corresponds to the JSON property `enableLogging`
        # @return [Boolean]
        attr_accessor :enable_logging
        alias_method :enable_logging?, :enable_logging
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] Type of the resource. Always compute#firewall for firewall rules.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # The available logging options for a firewall rule.
        # Corresponds to the JSON property `logConfig`
        # @return [Google::Apis::ComputeAlpha::FirewallLogConfig]
        attr_accessor :log_config
      
        # Name of the resource; provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?. The first character must be a lowercase letter, and all
        # following characters (except for the last character) must be a dash, lowercase
        # letter, or digit. The last character must be a lowercase letter or digit.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # URL of the network resource for this firewall rule. If not specified when
        # creating a firewall rule, the default network is used:
        # global/networks/default
        # If you choose to specify this field, you can specify the network as a full or
        # partial URL. For example, the following are all valid URLs:
        # - https://www.googleapis.com/compute/v1/projects/myproject/global/networks/my-
        # network
        # - projects/myproject/global/networks/my-network
        # - global/networks/default
        # Corresponds to the JSON property `network`
        # @return [String]
        attr_accessor :network
      
        # Priority for this rule. This is an integer between `0` and `65535`, both
        # inclusive. The default value is `1000`. Relative priorities determine which
        # rule takes effect if multiple rules apply. Lower values indicate higher
        # priority. For example, a rule with priority `0` has higher precedence than a
        # rule with priority `1`. DENY rules take precedence over ALLOW rules if they
        # have equal priority. Note that VPC networks have implied rules with a priority
        # of `65535`. To avoid conflicts with the implied rules, use a priority number
        # less than `65535`.
        # Corresponds to the JSON property `priority`
        # @return [Fixnum]
        attr_accessor :priority
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # If source ranges are specified, the firewall rule applies only to traffic that
        # has a source IP address in these ranges. These ranges must be expressed in
        # CIDR format. One or both of sourceRanges and sourceTags may be set. If both
        # fields are set, the rule applies to traffic that has a source IP address
        # within sourceRanges OR a source IP from a resource with a matching tag listed
        # in the sourceTags field. The connection does not need to match both fields for
        # the rule to apply. Only IPv4 is supported.
        # Corresponds to the JSON property `sourceRanges`
        # @return [Array<String>]
        attr_accessor :source_ranges
      
        # If source service accounts are specified, the firewall rules apply only to
        # traffic originating from an instance with a service account in this list.
        # Source service accounts cannot be used to control traffic to an instance's
        # external IP address because service accounts are associated with an instance,
        # not an IP address. sourceRanges can be set at the same time as
        # sourceServiceAccounts. If both are set, the firewall applies to traffic that
        # has a source IP address within the sourceRanges OR a source IP that belongs to
        # an instance with service account listed in sourceServiceAccount. The
        # connection does not need to match both fields for the firewall to apply.
        # sourceServiceAccounts cannot be used at the same time as sourceTags or
        # targetTags.
        # Corresponds to the JSON property `sourceServiceAccounts`
        # @return [Array<String>]
        attr_accessor :source_service_accounts
      
        # If source tags are specified, the firewall rule applies only to traffic with
        # source IPs that match the primary network interfaces of VM instances that have
        # the tag and are in the same VPC network. Source tags cannot be used to control
        # traffic to an instance's external IP address, it only applies to traffic
        # between instances in the same virtual network. Because tags are associated
        # with instances, not IP addresses. One or both of sourceRanges and sourceTags
        # may be set. If both fields are set, the firewall applies to traffic that has a
        # source IP address within sourceRanges OR a source IP from a resource with a
        # matching tag listed in the sourceTags field. The connection does not need to
        # match both fields for the firewall to apply.
        # Corresponds to the JSON property `sourceTags`
        # @return [Array<String>]
        attr_accessor :source_tags
      
        # A list of service accounts indicating sets of instances located in the network
        # that may make network connections as specified in allowed[].
        # targetServiceAccounts cannot be used at the same time as targetTags or
        # sourceTags. If neither targetServiceAccounts nor targetTags are specified, the
        # firewall rule applies to all instances on the specified network.
        # Corresponds to the JSON property `targetServiceAccounts`
        # @return [Array<String>]
        attr_accessor :target_service_accounts
      
        # A list of tags that controls which instances the firewall rule applies to. If
        # targetTags are specified, then the firewall rule applies only to instances in
        # the VPC network that have one of those tags. If no targetTags are specified,
        # the firewall rule applies to all instances on the specified network.
        # Corresponds to the JSON property `targetTags`
        # @return [Array<String>]
        attr_accessor :target_tags
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @allowed = args[:allowed] if args.key?(:allowed)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @denied = args[:denied] if args.key?(:denied)
          @description = args[:description] if args.key?(:description)
          @destination_ranges = args[:destination_ranges] if args.key?(:destination_ranges)
          @direction = args[:direction] if args.key?(:direction)
          @disabled = args[:disabled] if args.key?(:disabled)
          @enable_logging = args[:enable_logging] if args.key?(:enable_logging)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @log_config = args[:log_config] if args.key?(:log_config)
          @name = args[:name] if args.key?(:name)
          @network = args[:network] if args.key?(:network)
          @priority = args[:priority] if args.key?(:priority)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @source_ranges = args[:source_ranges] if args.key?(:source_ranges)
          @source_service_accounts = args[:source_service_accounts] if args.key?(:source_service_accounts)
          @source_tags = args[:source_tags] if args.key?(:source_tags)
          @target_service_accounts = args[:target_service_accounts] if args.key?(:target_service_accounts)
          @target_tags = args[:target_tags] if args.key?(:target_tags)
        end
        
        # 
        class Allowed
          include Google::Apis::Core::Hashable
        
          # The IP protocol to which this rule applies. The protocol type is required when
          # creating a firewall rule. This value can either be one of the following well
          # known protocol strings (tcp, udp, icmp, esp, ah, ipip, sctp) or the IP
          # protocol number.
          # Corresponds to the JSON property `IPProtocol`
          # @return [String]
          attr_accessor :ip_protocol
        
          # An optional list of ports to which this rule applies. This field is only
          # applicable for the UDP or TCP protocol. Each entry must be either an integer
          # or a range. If not specified, this rule applies to connections through any
          # port.
          # Example inputs include: ["22"], ["80","443"], and ["12345-12349"].
          # Corresponds to the JSON property `ports`
          # @return [Array<String>]
          attr_accessor :ports
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @ip_protocol = args[:ip_protocol] if args.key?(:ip_protocol)
            @ports = args[:ports] if args.key?(:ports)
          end
        end
        
        # 
        class Denied
          include Google::Apis::Core::Hashable
        
          # The IP protocol to which this rule applies. The protocol type is required when
          # creating a firewall rule. This value can either be one of the following well
          # known protocol strings (tcp, udp, icmp, esp, ah, ipip, sctp) or the IP
          # protocol number.
          # Corresponds to the JSON property `IPProtocol`
          # @return [String]
          attr_accessor :ip_protocol
        
          # An optional list of ports to which this rule applies. This field is only
          # applicable for the UDP or TCP protocol. Each entry must be either an integer
          # or a range. If not specified, this rule applies to connections through any
          # port.
          # Example inputs include: ["22"], ["80","443"], and ["12345-12349"].
          # Corresponds to the JSON property `ports`
          # @return [Array<String>]
          attr_accessor :ports
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @ip_protocol = args[:ip_protocol] if args.key?(:ip_protocol)
            @ports = args[:ports] if args.key?(:ports)
          end
        end
      end
      
      # Contains a list of firewalls.
      class FirewallList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of Firewall resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::Firewall>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#firewallList for lists of
        # firewalls.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::FirewallList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::FirewallList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # The available logging options for a firewall rule.
      class FirewallLogConfig
        include Google::Apis::Core::Hashable
      
        # This field denotes whether to enable logging for a particular firewall rule.
        # Corresponds to the JSON property `enable`
        # @return [Boolean]
        attr_accessor :enable
        alias_method :enable?, :enable
      
        # This field can only be specified for a particular firewall rule if logging is
        # enabled for that rule. This field denotes whether to include or exclude
        # metadata for firewall logs.
        # Corresponds to the JSON property `metadata`
        # @return [String]
        attr_accessor :metadata
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @enable = args[:enable] if args.key?(:enable)
          @metadata = args[:metadata] if args.key?(:metadata)
        end
      end
      
      # Represents a Firewall Policy resource. (== resource_for `$api_version`.
      # firewallPolicies ==)
      class FirewallPolicy
        include Google::Apis::Core::Hashable
      
        # A list of associations that belong to this firewall policy.
        # Corresponds to the JSON property `associations`
        # @return [Array<Google::Apis::ComputeAlpha::FirewallPolicyAssociation>]
        attr_accessor :associations
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # User-provided name of the Organization firewall plicy. The name should be
        # unique in the organization in which the firewall policy is created. The name
        # must be 1-63 characters long, and comply with RFC1035. Specifically, the name
        # must be 1-63 characters long and match the regular expression `[a-z]([-a-z0-9]*
        # [a-z0-9])?` which means the first character must be a lowercase letter, and
        # all following characters must be a dash, lowercase letter, or digit, except
        # the last character, which cannot be a dash.
        # Corresponds to the JSON property `displayName`
        # @return [String]
        attr_accessor :display_name
      
        # Specifies a fingerprint for this resource, which is essentially a hash of the
        # metadata's contents and used for optimistic locking. The fingerprint is
        # initially generated by Compute Engine and changes after every request to
        # modify or update metadata. You must always provide an up-to-date fingerprint
        # hash in order to update or change metadata, otherwise the request will fail
        # with error 412 conditionNotMet.
        # To see the latest fingerprint, make get() request to the firewall policy.
        # Corresponds to the JSON property `fingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :fingerprint
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output only] Type of the resource. Always compute#firewallPolicyfor firewall
        # policies
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] Name of the resource. It is a numeric ID allocated by GCP which
        # uniquely identifies the Firewall Policy.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # [Output Only] The parent of the firewall policy.
        # Corresponds to the JSON property `parent`
        # @return [String]
        attr_accessor :parent
      
        # [Output Only] Total count of all firewall policy rule tuples. A firewall
        # policy can not exceed a set number of tuples.
        # Corresponds to the JSON property `ruleTupleCount`
        # @return [Fixnum]
        attr_accessor :rule_tuple_count
      
        # A list of rules that belong to this policy. There must always be a default
        # rule (rule with priority 2147483647 and match "*"). If no rules are provided
        # when creating a firewall policy, a default rule with action "allow" will be
        # added.
        # Corresponds to the JSON property `rules`
        # @return [Array<Google::Apis::ComputeAlpha::FirewallPolicyRule>]
        attr_accessor :rules
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @associations = args[:associations] if args.key?(:associations)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @display_name = args[:display_name] if args.key?(:display_name)
          @fingerprint = args[:fingerprint] if args.key?(:fingerprint)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @name = args[:name] if args.key?(:name)
          @parent = args[:parent] if args.key?(:parent)
          @rule_tuple_count = args[:rule_tuple_count] if args.key?(:rule_tuple_count)
          @rules = args[:rules] if args.key?(:rules)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
        end
      end
      
      # 
      class FirewallPolicyAssociation
        include Google::Apis::Core::Hashable
      
        # The target that the firewall policy is attached to.
        # Corresponds to the JSON property `attachmentTarget`
        # @return [String]
        attr_accessor :attachment_target
      
        # [Output Only] The display name of the firewall policy of the association.
        # Corresponds to the JSON property `displayName`
        # @return [String]
        attr_accessor :display_name
      
        # [Output Only] The firewall policy ID of the association.
        # Corresponds to the JSON property `firewallPolicyId`
        # @return [String]
        attr_accessor :firewall_policy_id
      
        # The name for an association.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @attachment_target = args[:attachment_target] if args.key?(:attachment_target)
          @display_name = args[:display_name] if args.key?(:display_name)
          @firewall_policy_id = args[:firewall_policy_id] if args.key?(:firewall_policy_id)
          @name = args[:name] if args.key?(:name)
        end
      end
      
      # 
      class FirewallPolicyList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of FirewallPolicy resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::FirewallPolicy>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#firewallPolicyList for listsof
        # FirewallPolicies
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::FirewallPolicyList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::FirewallPolicyList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Represents a rule that describes one or more match conditions along with the
      # action to be taken when traffic matches this condition (allow or deny).
      class FirewallPolicyRule
        include Google::Apis::Core::Hashable
      
        # The Action to perform when the client connection triggers the rule. Can
        # currently be either "allow" or "deny()" where valid values for status are 403,
        # 404, and 502.
        # Corresponds to the JSON property `action`
        # @return [String]
        attr_accessor :action
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # The direction in which this rule applies.
        # Corresponds to the JSON property `direction`
        # @return [String]
        attr_accessor :direction
      
        # Denotes whether the firewall policy rule is disabled. When set to true, the
        # firewall policy rule is not enforced and traffic behaves as if it did not
        # exist. If this is unspecified, the firewall policy rule will be enabled.
        # Corresponds to the JSON property `disabled`
        # @return [Boolean]
        attr_accessor :disabled
        alias_method :disabled?, :disabled
      
        # Denotes whether to enable logging for a particular rule. If logging is enabled,
        # logs will be exported to the configured export destination in Stackdriver.
        # Logs may be exported to BigQuery or Pub/Sub. Note: you cannot enable logging
        # on "goto_next" rules.
        # Corresponds to the JSON property `enableLogging`
        # @return [Boolean]
        attr_accessor :enable_logging
        alias_method :enable_logging?, :enable_logging
      
        # [Output only] Type of the resource. Always compute#firewallPolicyRule for
        # firewall policy rules
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # Represents a match condition that incoming traffic is evaluated against.
        # Exactly one field must be specified.
        # Corresponds to the JSON property `match`
        # @return [Google::Apis::ComputeAlpha::FirewallPolicyRuleMatcher]
        attr_accessor :match
      
        # An integer indicating the priority of a rule in the list. The priority must be
        # a positive value between 0 and 2147483647. Rules are evaluated from highest to
        # lowest priority where 0 is the highest priority and 2147483647 is the lowest
        # prority.
        # Corresponds to the JSON property `priority`
        # @return [Fixnum]
        attr_accessor :priority
      
        # [Output Only] Calculation of the complexity of a single firewall policy rule.
        # Corresponds to the JSON property `ruleTupleCount`
        # @return [Fixnum]
        attr_accessor :rule_tuple_count
      
        # A list of network resource URLs to which this rule applies. This field allows
        # you to control which network?s VMs get this rule. If this field is left blank,
        # all VMs within the organization will receive the rule.
        # Corresponds to the JSON property `targetResources`
        # @return [Array<String>]
        attr_accessor :target_resources
      
        # A list of secure labels that controls which instances the firewall rule
        # applies to. If targetSecureLabel are specified, then the firewall rule applies
        # only to instances in the VPC network that have one of those secure labels.
        # targetSecureLabel may not be set at the same time as targetServiceAccounts. If
        # neither targetServiceAccounts nor targetSecureLabel are specified, the
        # firewall rule applies to all instances on the specified network. Maximum
        # number of target label values allowed is 256.
        # Corresponds to the JSON property `targetSecureLabels`
        # @return [Array<String>]
        attr_accessor :target_secure_labels
      
        # A list of service accounts indicating the sets of instances that are applied
        # with this rule.
        # Corresponds to the JSON property `targetServiceAccounts`
        # @return [Array<String>]
        attr_accessor :target_service_accounts
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @action = args[:action] if args.key?(:action)
          @description = args[:description] if args.key?(:description)
          @direction = args[:direction] if args.key?(:direction)
          @disabled = args[:disabled] if args.key?(:disabled)
          @enable_logging = args[:enable_logging] if args.key?(:enable_logging)
          @kind = args[:kind] if args.key?(:kind)
          @match = args[:match] if args.key?(:match)
          @priority = args[:priority] if args.key?(:priority)
          @rule_tuple_count = args[:rule_tuple_count] if args.key?(:rule_tuple_count)
          @target_resources = args[:target_resources] if args.key?(:target_resources)
          @target_secure_labels = args[:target_secure_labels] if args.key?(:target_secure_labels)
          @target_service_accounts = args[:target_service_accounts] if args.key?(:target_service_accounts)
        end
      end
      
      # Represents a match condition that incoming traffic is evaluated against.
      # Exactly one field must be specified.
      class FirewallPolicyRuleMatcher
        include Google::Apis::Core::Hashable
      
        # CIDR IP address range. Maximum number of destination CIDR IP ranges allowed is
        # 256.
        # Corresponds to the JSON property `destIpRanges`
        # @return [Array<String>]
        attr_accessor :dest_ip_ranges
      
        # Pairs of IP protocols and ports that the rule should match.
        # Corresponds to the JSON property `layer4Configs`
        # @return [Array<Google::Apis::ComputeAlpha::FirewallPolicyRuleMatcherLayer4Config>]
        attr_accessor :layer4_configs
      
        # CIDR IP address range. Maximum number of source CIDR IP ranges allowed is 256.
        # Corresponds to the JSON property `srcIpRanges`
        # @return [Array<String>]
        attr_accessor :src_ip_ranges
      
        # List of firewall label values, which should be matched at the source of the
        # traffic. Maximum number of source label values allowed is 256.
        # Corresponds to the JSON property `srcSecureLabels`
        # @return [Array<String>]
        attr_accessor :src_secure_labels
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @dest_ip_ranges = args[:dest_ip_ranges] if args.key?(:dest_ip_ranges)
          @layer4_configs = args[:layer4_configs] if args.key?(:layer4_configs)
          @src_ip_ranges = args[:src_ip_ranges] if args.key?(:src_ip_ranges)
          @src_secure_labels = args[:src_secure_labels] if args.key?(:src_secure_labels)
        end
      end
      
      # 
      class FirewallPolicyRuleMatcherLayer4Config
        include Google::Apis::Core::Hashable
      
        # The IP protocol to which this rule applies. The protocol type is required when
        # creating a firewall rule. This value can either be one of the following well
        # known protocol strings (tcp, udp, icmp, esp, ah, ipip, sctp), or the IP
        # protocol number.
        # Corresponds to the JSON property `ipProtocol`
        # @return [String]
        attr_accessor :ip_protocol
      
        # An optional list of ports to which this rule applies. This field is only
        # applicable for UDP or TCP protocol. Each entry must be either an integer or a
        # range. If not specified, this rule applies to connections through any port.
        # Example inputs include: ["22"], ["80","443"], and ["12345-12349"].
        # Corresponds to the JSON property `ports`
        # @return [Array<String>]
        attr_accessor :ports
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @ip_protocol = args[:ip_protocol] if args.key?(:ip_protocol)
          @ports = args[:ports] if args.key?(:ports)
        end
      end
      
      # Encapsulates numeric value that can be either absolute or relative.
      class FixedOrPercent
        include Google::Apis::Core::Hashable
      
        # [Output Only] Absolute value of VM instances calculated based on the specific
        # mode.
        # 
        # - If the value is fixed, then the calculated value is equal to the fixed value.
        # 
        # - If the value is a percent, then the calculated value is percent/100 *
        # targetSize. For example, the calculated value of a 80% of a managed instance
        # group with 150 instances would be (80/100 * 150) = 120 VM instances. If there
        # is a remainder, the number is rounded up.
        # Corresponds to the JSON property `calculated`
        # @return [Fixnum]
        attr_accessor :calculated
      
        # Specifies a fixed number of VM instances. This must be a positive integer.
        # Corresponds to the JSON property `fixed`
        # @return [Fixnum]
        attr_accessor :fixed
      
        # Specifies a percentage of instances between 0 to 100%, inclusive. For example,
        # specify 80 for 80%.
        # Corresponds to the JSON property `percent`
        # @return [Fixnum]
        attr_accessor :percent
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @calculated = args[:calculated] if args.key?(:calculated)
          @fixed = args[:fixed] if args.key?(:fixed)
          @percent = args[:percent] if args.key?(:percent)
        end
      end
      
      # Represents a Forwarding Rule resource.
      # Forwarding rule resources in GCP can be either regional or global in scope:
      # * [Global](/compute/docs/reference/rest/`$api_version`/globalForwardingRules) *
      # [Regional](/compute/docs/reference/rest/`$api_version`/forwardingRules)
      # A forwarding rule and its corresponding IP address represent the frontend
      # configuration of a Google Cloud Platform load balancer. Forwarding rules can
      # also reference target instances and Cloud VPN Classic gateways (
      # targetVpnGateway).
      # For more information, read Forwarding rule concepts and Using protocol
      # forwarding.
      # (== resource_for `$api_version`.forwardingRules ==) (== resource_for `$
      # api_version`.globalForwardingRules ==) (== resource_for `$api_version`.
      # regionForwardingRules ==)
      class ForwardingRule
        include Google::Apis::Core::Hashable
      
        # IP address that this forwarding rule serves. When a client sends traffic to
        # this IP address, the forwarding rule directs the traffic to the target that
        # you specify in the forwarding rule.
        # If you don't specify a reserved IP address, an ephemeral IP address is
        # assigned. Methods for specifying an IP address:
        # * IPv4 dotted decimal, as in `100.1.2.3` * Full URL, as in https://www.
        # googleapis.com/compute/v1/projects/project_id/regions/region/addresses/address-
        # name * Partial URL or by name, as in:
        # - projects/project_id/regions/region/addresses/address-name
        # - regions/region/addresses/address-name
        # - global/addresses/address-name
        # - address-name
        # The loadBalancingScheme and the forwarding rule's target determine the type of
        # IP address that you can use. For detailed information, refer to [IP address
        # specifications](/load-balancing/docs/forwarding-rule-concepts#
        # ip_address_specifications).
        # Must be set to `0.0.0.0` when the target is targetGrpcProxy that has
        # validateForProxyless field set to true.
        # For Private Service Connect forwarding rules that forward traffic to Google
        # APIs, IP address must be provided.
        # Corresponds to the JSON property `IPAddress`
        # @return [String]
        attr_accessor :ip_address
      
        # The IP protocol to which this rule applies.
        # For protocol forwarding, valid options are TCP, UDP, ESP, AH, SCTP and ICMP.
        # The valid IP protocols are different for different load balancing products:
        # - Internal TCP/UDP Load Balancing: The load balancing scheme is INTERNAL, and
        # one of TCP, UDP or ALL is valid.
        # - Traffic Director: The load balancing scheme is INTERNAL_SELF_MANAGED, and
        # only TCP is valid.
        # - Internal HTTP(S) Load Balancing: The load balancing scheme is
        # INTERNAL_MANAGED, and only TCP is valid.
        # - HTTP(S), SSL Proxy, and TCP Proxy Load Balancing: The load balancing scheme
        # is EXTERNAL and only TCP is valid.
        # - Network Load Balancing: The load balancing scheme is EXTERNAL, and one of
        # TCP or UDP is valid.
        # Corresponds to the JSON property `IPProtocol`
        # @return [String]
        attr_accessor :ip_protocol
      
        # This field is used along with the backend_service field for internal load
        # balancing or with the target field for internal TargetInstance. This field
        # cannot be used with port or portRange fields.
        # When the load balancing scheme is INTERNAL and protocol is TCP/UDP, specify
        # this field to allow packets addressed to any ports will be forwarded to the
        # backends configured with this forwarding rule.
        # Corresponds to the JSON property `allPorts`
        # @return [Boolean]
        attr_accessor :all_ports
        alias_method :all_ports?, :all_ports
      
        # This field is used along with the backend_service field for internal load
        # balancing or with the target field for internal TargetInstance. If the field
        # is set to TRUE, clients can access ILB from all regions. Otherwise only allows
        # access from clients in the same region as the internal load balancer.
        # Corresponds to the JSON property `allowGlobalAccess`
        # @return [Boolean]
        attr_accessor :allow_global_access
        alias_method :allow_global_access?, :allow_global_access
      
        # Identifies the backend service to which the forwarding rule sends traffic.
        # Required for Internal TCP/UDP Load Balancing and Network Load Balancing; must
        # be omitted for all other load balancer types.
        # Corresponds to the JSON property `backendService`
        # @return [String]
        attr_accessor :backend_service
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # Fingerprint of this resource. A hash of the contents stored in this object.
        # This field is used in optimistic locking. This field will be ignored when
        # inserting a ForwardingRule. Include the fingerprint in patch request to ensure
        # that you do not overwrite changes that were applied from another concurrent
        # request.
        # To see the latest fingerprint, make a get() request to retrieve a
        # ForwardingRule.
        # Corresponds to the JSON property `fingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :fingerprint
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # The IP Version that will be used by this forwarding rule. Valid options are
        # IPV4 or IPV6. This can only be specified for an external global forwarding
        # rule.
        # Corresponds to the JSON property `ipVersion`
        # @return [String]
        attr_accessor :ip_version
      
        # Indicates whether or not this load balancer can be used as a collector for
        # packet mirroring. To prevent mirroring loops, instances behind this load
        # balancer will not have their traffic mirrored even if a PacketMirroring rule
        # applies to them. This can only be set to true for load balancers that have
        # their loadBalancingScheme set to INTERNAL.
        # Corresponds to the JSON property `isMirroringCollector`
        # @return [Boolean]
        attr_accessor :is_mirroring_collector
        alias_method :is_mirroring_collector?, :is_mirroring_collector
      
        # [Output Only] Type of the resource. Always compute#forwardingRule for
        # Forwarding Rule resources.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # A fingerprint for the labels being applied to this resource, which is
        # essentially a hash of the labels set used for optimistic locking. The
        # fingerprint is initially generated by Compute Engine and changes after every
        # request to modify or update labels. You must always provide an up-to-date
        # fingerprint hash in order to update or change labels, otherwise the request
        # will fail with error 412 conditionNotMet.
        # To see the latest fingerprint, make a get() request to retrieve a
        # ForwardingRule.
        # Corresponds to the JSON property `labelFingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :label_fingerprint
      
        # Labels for this resource. These can only be added or modified by the setLabels
        # method. Each label key/value pair must comply with RFC1035. Label values may
        # be empty.
        # Corresponds to the JSON property `labels`
        # @return [Hash<String,String>]
        attr_accessor :labels
      
        # Specifies the forwarding rule type.
        # 
        # - EXTERNAL is used for:
        # - Classic Cloud VPN gateways
        # - Protocol forwarding to VMs from an external IP address
        # - HTTP(S), SSL Proxy, TCP Proxy, and Network Load Balancing
        # - INTERNAL is used for:
        # - Protocol forwarding to VMs from an internal IP address
        # - Internal TCP/UDP Load Balancing
        # - INTERNAL_MANAGED is used for:
        # - Internal HTTP(S) Load Balancing
        # - INTERNAL_SELF_MANAGED is used for:
        # - Traffic Director
        # For more information about forwarding rules, refer to Forwarding rule concepts.
        # Corresponds to the JSON property `loadBalancingScheme`
        # @return [String]
        attr_accessor :load_balancing_scheme
      
        # Opaque filter criteria used by Loadbalancer to restrict routing configuration
        # to a limited set of xDS compliant clients. In their xDS requests to
        # Loadbalancer, xDS clients present node metadata. When there is a match, the
        # relevant configuration is made available to those proxies. Otherwise, all the
        # resources (e.g. TargetHttpProxy, UrlMap) referenced by the ForwardingRule will
        # not be visible to those proxies.
        # For each metadataFilter in this list, if its filterMatchCriteria is set to
        # MATCH_ANY, at least one of the filterLabels must match the corresponding label
        # provided in the metadata. If its filterMatchCriteria is set to MATCH_ALL, then
        # all of its filterLabels must match with corresponding labels provided in the
        # metadata. If multiple metadataFilters are specified, all of them need to be
        # satisfied in order to be considered a match.
        # metadataFilters specified here will be applifed before those specified in the
        # UrlMap that this ForwardingRule references.
        # metadataFilters only applies to Loadbalancers that have their
        # loadBalancingScheme set to INTERNAL_SELF_MANAGED.
        # Corresponds to the JSON property `metadataFilters`
        # @return [Array<Google::Apis::ComputeAlpha::MetadataFilter>]
        attr_accessor :metadata_filters
      
        # Name of the resource; provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # This field is not used for external load balancing.
        # For Internal TCP/UDP Load Balancing, this field identifies the network that
        # the load balanced IP should belong to for this Forwarding Rule. If this field
        # is not specified, the default network will be used.
        # For Private Service Connect forwarding rules that forward traffic to Google
        # APIs, a network must be provided.
        # Corresponds to the JSON property `network`
        # @return [String]
        attr_accessor :network
      
        # This signifies the networking tier used for configuring this load balancer and
        # can only take the following values: PREMIUM, STANDARD.
        # For regional ForwardingRule, the valid values are PREMIUM and STANDARD. For
        # GlobalForwardingRule, the valid value is PREMIUM.
        # If this field is not specified, it is assumed to be PREMIUM. If IPAddress is
        # specified, this value must be equal to the networkTier of the Address.
        # Corresponds to the JSON property `networkTier`
        # @return [String]
        attr_accessor :network_tier
      
        # This field can be used only if: * Load balancing scheme is one of EXTERNAL,
        # INTERNAL_SELF_MANAGED or INTERNAL_MANAGED, and * IPProtocol is one of TCP, UDP,
        # or SCTP.
        # Packets addressed to ports in the specified range will be forwarded to target
        # or  backend_service. You can only use one of ports, port_range, or allPorts.
        # The three are mutually exclusive. Forwarding rules with the same [IPAddress,
        # IPProtocol] pair must have disjoint port ranges.
        # Some types of forwarding target have constraints on the acceptable ports:
        # - TargetHttpProxy: 80, 8080
        # - TargetHttpsProxy: 443
        # - TargetGrpcProxy: no constraints
        # - TargetTcpProxy: 25, 43, 110, 143, 195, 443, 465, 587, 700, 993, 995, 1688,
        # 1883, 5222
        # - TargetSslProxy: 25, 43, 110, 143, 195, 443, 465, 587, 700, 993, 995, 1688,
        # 1883, 5222
        # - TargetVpnGateway: 500, 4500
        # Corresponds to the JSON property `portRange`
        # @return [String]
        attr_accessor :port_range
      
        # The ports field is only supported when the forwarding rule references a
        # backend_service directly. Supported load balancing products are Internal TCP/
        # UDP Load Balancing and Network Load Balancing. Only packets addressed to the
        # specified list of ports are forwarded to backends.
        # You can only use one of ports and port_range, or allPorts. The three are
        # mutually exclusive.
        # You can specify a list of up to five ports, which can be non-contiguous.
        # For Internal TCP/UDP Load Balancing, if you specify allPorts, you should not
        # specify ports.
        # For more information, see [Port specifications](/load-balancing/docs/
        # forwarding-rule-concepts#port_specifications).
        # Corresponds to the JSON property `ports`
        # @return [Array<String>]
        attr_accessor :ports
      
        # [Output Only] URL of the region where the regional forwarding rule resides.
        # This field is not applicable to global forwarding rules. You must specify this
        # field as part of the HTTP request URL. It is not settable as a field in the
        # request body.
        # Corresponds to the JSON property `region`
        # @return [String]
        attr_accessor :region
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # Service Directory resources to register this forwarding rule with. Currently,
        # only supports a single Service Directory resource.
        # It is only supported for Internal TCP/UDP Load Balancing and Internal HTTP(S)
        # Load Balancing.
        # Corresponds to the JSON property `serviceDirectoryRegistrations`
        # @return [Array<Google::Apis::ComputeAlpha::ForwardingRuleServiceDirectoryRegistration>]
        attr_accessor :service_directory_registrations
      
        # An optional prefix to the service name for this Forwarding Rule. If specified,
        # the prefix is the first label of the fully qualified service name.
        # The label must be 1-63 characters long, and comply with RFC1035. Specifically,
        # the label must be 1-63 characters long and match the regular expression `[a-z](
        # [-a-z0-9]*[a-z0-9])?` which means the first character must be a lowercase
        # letter, and all following characters must be a dash, lowercase letter, or
        # digit, except the last character, which cannot be a dash.
        # This field is only used for internal load balancing.
        # Corresponds to the JSON property `serviceLabel`
        # @return [String]
        attr_accessor :service_label
      
        # [Output Only] The internal fully qualified service name for this Forwarding
        # Rule.
        # This field is only used for internal load balancing.
        # Corresponds to the JSON property `serviceName`
        # @return [String]
        attr_accessor :service_name
      
        # This field is only used for internal load balancing.
        # For internal load balancing, this field identifies the subnetwork that the
        # load balanced IP should belong to for this Forwarding Rule.
        # If the network specified is in auto subnet mode, this field is optional.
        # However, if the network is in custom subnet mode, a subnetwork must be
        # specified.
        # Corresponds to the JSON property `subnetwork`
        # @return [String]
        attr_accessor :subnetwork
      
        # The URL of the target resource to receive the matched traffic. For regional
        # forwarding rules, this target must be in the same region as the forwarding
        # rule. For global forwarding rules, this target must be a global load balancing
        # resource. The forwarded traffic must be of a type appropriate to the target
        # object. For more information, see the "Target" column in [Port specifications](
        # /load-balancing/docs/forwarding-rule-concepts#ip_address_specifications).
        # For Private Service Connect forwarding rules that forward traffic to Google
        # APIs, provide the name of a supported Google API bundle. Currently, the
        # supported Google API bundles include:
        # 
        # - vpc-sc - GCP APIs that support VPC Service Controls. For more information
        # about which APIs support VPC Service Controls, refer to VPC-SC supported
        # products and limitations.
        # - all-apis - All GCP APIs. For more information about which APIs are supported
        # with this bundle, refer to Private Google Access-specific domains and VIPs.
        # Corresponds to the JSON property `target`
        # @return [String]
        attr_accessor :target
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @ip_address = args[:ip_address] if args.key?(:ip_address)
          @ip_protocol = args[:ip_protocol] if args.key?(:ip_protocol)
          @all_ports = args[:all_ports] if args.key?(:all_ports)
          @allow_global_access = args[:allow_global_access] if args.key?(:allow_global_access)
          @backend_service = args[:backend_service] if args.key?(:backend_service)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @fingerprint = args[:fingerprint] if args.key?(:fingerprint)
          @id = args[:id] if args.key?(:id)
          @ip_version = args[:ip_version] if args.key?(:ip_version)
          @is_mirroring_collector = args[:is_mirroring_collector] if args.key?(:is_mirroring_collector)
          @kind = args[:kind] if args.key?(:kind)
          @label_fingerprint = args[:label_fingerprint] if args.key?(:label_fingerprint)
          @labels = args[:labels] if args.key?(:labels)
          @load_balancing_scheme = args[:load_balancing_scheme] if args.key?(:load_balancing_scheme)
          @metadata_filters = args[:metadata_filters] if args.key?(:metadata_filters)
          @name = args[:name] if args.key?(:name)
          @network = args[:network] if args.key?(:network)
          @network_tier = args[:network_tier] if args.key?(:network_tier)
          @port_range = args[:port_range] if args.key?(:port_range)
          @ports = args[:ports] if args.key?(:ports)
          @region = args[:region] if args.key?(:region)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @service_directory_registrations = args[:service_directory_registrations] if args.key?(:service_directory_registrations)
          @service_label = args[:service_label] if args.key?(:service_label)
          @service_name = args[:service_name] if args.key?(:service_name)
          @subnetwork = args[:subnetwork] if args.key?(:subnetwork)
          @target = args[:target] if args.key?(:target)
        end
      end
      
      # 
      class ForwardingRuleAggregatedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of ForwardingRulesScopedList resources.
        # Corresponds to the JSON property `items`
        # @return [Hash<String,Google::Apis::ComputeAlpha::ForwardingRulesScopedList>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#forwardingRuleAggregatedList
        # for lists of forwarding rules.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Unreachable resources.
        # Corresponds to the JSON property `unreachables`
        # @return [Array<String>]
        attr_accessor :unreachables
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::ForwardingRuleAggregatedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @unreachables = args[:unreachables] if args.key?(:unreachables)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::ForwardingRuleAggregatedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Contains a list of ForwardingRule resources.
      class ForwardingRuleList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of ForwardingRule resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::ForwardingRule>]
        attr_accessor :items
      
        # Type of resource.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::ForwardingRuleList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::ForwardingRuleList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class ForwardingRuleReference
        include Google::Apis::Core::Hashable
      
        # 
        # Corresponds to the JSON property `forwardingRule`
        # @return [String]
        attr_accessor :forwarding_rule
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @forwarding_rule = args[:forwarding_rule] if args.key?(:forwarding_rule)
        end
      end
      
      # Describes the auto-registration of the Forwarding Rule to Service Directory.
      # The region and project of the Service Directory resource generated from this
      # registration will be the same as this Forwarding Rule.
      class ForwardingRuleServiceDirectoryRegistration
        include Google::Apis::Core::Hashable
      
        # Service Directory namespace to register the forwarding rule under.
        # Corresponds to the JSON property `namespace`
        # @return [String]
        attr_accessor :namespace
      
        # Service Directory service to register the forwarding rule under.
        # Corresponds to the JSON property `service`
        # @return [String]
        attr_accessor :service
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @namespace = args[:namespace] if args.key?(:namespace)
          @service = args[:service] if args.key?(:service)
        end
      end
      
      # 
      class ForwardingRulesScopedList
        include Google::Apis::Core::Hashable
      
        # A list of forwarding rules contained in this scope.
        # Corresponds to the JSON property `forwardingRules`
        # @return [Array<Google::Apis::ComputeAlpha::ForwardingRule>]
        attr_accessor :forwarding_rules
      
        # Informational warning which replaces the list of forwarding rules when the
        # list is empty.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::ForwardingRulesScopedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @forwarding_rules = args[:forwarding_rules] if args.key?(:forwarding_rules)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # Informational warning which replaces the list of forwarding rules when the
        # list is empty.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::ForwardingRulesScopedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class GrpcHealthCheck
        include Google::Apis::Core::Hashable
      
        # The gRPC service name for the health check. This field is optional. The value
        # of grpc_service_name has the following meanings by convention:
        # - Empty service_name means the overall status of all services at the backend.
        # - Non-empty service_name means the health of that gRPC service, as defined by
        # the owner of the service.
        # The grpc_service_name can only be ASCII.
        # Corresponds to the JSON property `grpcServiceName`
        # @return [String]
        attr_accessor :grpc_service_name
      
        # The port number for the health check request. Must be specified if port_name
        # and port_specification are not set or if port_specification is USE_FIXED_PORT.
        # Valid values are 1 through 65535.
        # Corresponds to the JSON property `port`
        # @return [Fixnum]
        attr_accessor :port
      
        # Port name as defined in InstanceGroup#NamedPort#name. If both port and
        # port_name are defined, port takes precedence. The port_name should conform to
        # RFC1035.
        # Corresponds to the JSON property `portName`
        # @return [String]
        attr_accessor :port_name
      
        # Specifies how port is selected for health checking, can be one of following
        # values:
        # USE_FIXED_PORT: The port number in port is used for health checking.
        # USE_NAMED_PORT: The portName is used for health checking.
        # USE_SERVING_PORT: For NetworkEndpointGroup, the port specified for each
        # network endpoint is used for health checking. For other backends, the port or
        # named port specified in the Backend Service is used for health checking.
        # If not specified, gRPC health check follows behavior specified in port and
        # portName fields.
        # Corresponds to the JSON property `portSpecification`
        # @return [String]
        attr_accessor :port_specification
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @grpc_service_name = args[:grpc_service_name] if args.key?(:grpc_service_name)
          @port = args[:port] if args.key?(:port)
          @port_name = args[:port_name] if args.key?(:port_name)
          @port_specification = args[:port_specification] if args.key?(:port_specification)
        end
      end
      
      # 
      class GetOwnerInstanceResponse
        include Google::Apis::Core::Hashable
      
        # Full instance resource URL.
        # Corresponds to the JSON property `instance`
        # @return [String]
        attr_accessor :instance
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @instance = args[:instance] if args.key?(:instance)
        end
      end
      
      # 
      class GlobalNetworkEndpointGroupsAttachEndpointsRequest
        include Google::Apis::Core::Hashable
      
        # The list of network endpoints to be attached.
        # Corresponds to the JSON property `networkEndpoints`
        # @return [Array<Google::Apis::ComputeAlpha::NetworkEndpoint>]
        attr_accessor :network_endpoints
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @network_endpoints = args[:network_endpoints] if args.key?(:network_endpoints)
        end
      end
      
      # 
      class GlobalNetworkEndpointGroupsDetachEndpointsRequest
        include Google::Apis::Core::Hashable
      
        # The list of network endpoints to be detached.
        # Corresponds to the JSON property `networkEndpoints`
        # @return [Array<Google::Apis::ComputeAlpha::NetworkEndpoint>]
        attr_accessor :network_endpoints
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @network_endpoints = args[:network_endpoints] if args.key?(:network_endpoints)
        end
      end
      
      # 
      class GlobalSetLabelsRequest
        include Google::Apis::Core::Hashable
      
        # The fingerprint of the previous set of labels for this resource, used to
        # detect conflicts. The fingerprint is initially generated by Compute Engine and
        # changes after every request to modify or update labels. You must always
        # provide an up-to-date fingerprint hash when updating or changing labels,
        # otherwise the request will fail with error 412 conditionNotMet. Make a get()
        # request to the resource to get the latest fingerprint.
        # Corresponds to the JSON property `labelFingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :label_fingerprint
      
        # A list of labels to apply for this resource. Each label key & value must
        # comply with RFC1035. Specifically, the name must be 1-63 characters long and
        # match the regular expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the
        # first character must be a lowercase letter, and all following characters must
        # be a dash, lowercase letter, or digit, except the last character, which cannot
        # be a dash. For example, "webserver-frontend": "images". A label value can also
        # be empty (e.g. "my-label": "").
        # Corresponds to the JSON property `labels`
        # @return [Hash<String,String>]
        attr_accessor :labels
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @label_fingerprint = args[:label_fingerprint] if args.key?(:label_fingerprint)
          @labels = args[:labels] if args.key?(:labels)
        end
      end
      
      # 
      class GlobalSetPolicyRequest
        include Google::Apis::Core::Hashable
      
        # Flatten Policy to create a backward compatible wire-format. Deprecated. Use '
        # policy' to specify bindings.
        # Corresponds to the JSON property `bindings`
        # @return [Array<Google::Apis::ComputeAlpha::Binding>]
        attr_accessor :bindings
      
        # Flatten Policy to create a backward compatible wire-format. Deprecated. Use '
        # policy' to specify the etag.
        # Corresponds to the JSON property `etag`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :etag
      
        # An Identity and Access Management (IAM) policy, which specifies access
        # controls for Google Cloud resources.
        # A `Policy` is a collection of `bindings`. A `binding` binds one or more `
        # members` to a single `role`. Members can be user accounts, service accounts,
        # Google groups, and domains (such as G Suite). A `role` is a named list of
        # permissions; each `role` can be an IAM predefined role or a user-created
        # custom role.
        # For some types of Google Cloud resources, a `binding` can also specify a `
        # condition`, which is a logical expression that allows access to a resource
        # only if the expression evaluates to `true`. A condition can add constraints
        # based on attributes of the request, the resource, or both. To learn which
        # resources support conditions in their IAM policies, see the [IAM documentation]
        # (https://cloud.google.com/iam/help/conditions/resource-policies).
        # **JSON example:**
        # ` "bindings": [ ` "role": "roles/resourcemanager.organizationAdmin", "members":
        # [ "user:mike@example.com", "group:admins@example.com", "domain:google.com", "
        # serviceAccount:my-project-id@appspot.gserviceaccount.com" ] `, ` "role": "
        # roles/resourcemanager.organizationViewer", "members": [ "user:eve@example.com"
        # ], "condition": ` "title": "expirable access", "description": "Does not grant
        # access after Sep 2020", "expression": "request.time < timestamp('2020-10-01T00:
        # 00:00.000Z')", ` ` ], "etag": "BwWWja0YfJA=", "version": 3 `
        # **YAML example:**
        # bindings: - members: - user:mike@example.com - group:admins@example.com -
        # domain:google.com - serviceAccount:my-project-id@appspot.gserviceaccount.com
        # role: roles/resourcemanager.organizationAdmin - members: - user:eve@example.
        # com role: roles/resourcemanager.organizationViewer condition: title: expirable
        # access description: Does not grant access after Sep 2020 expression: request.
        # time < timestamp('2020-10-01T00:00:00.000Z') - etag: BwWWja0YfJA= - version: 3
        # For a description of IAM and its features, see the [IAM documentation](https://
        # cloud.google.com/iam/docs/).
        # Corresponds to the JSON property `policy`
        # @return [Google::Apis::ComputeAlpha::Policy]
        attr_accessor :policy
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @bindings = args[:bindings] if args.key?(:bindings)
          @etag = args[:etag] if args.key?(:etag)
          @policy = args[:policy] if args.key?(:policy)
        end
      end
      
      # [Deprecated] gRPC config to access the SDS server. gRPC config to access the
      # SDS server.
      class GrpcServiceConfig
        include Google::Apis::Core::Hashable
      
        # [Deprecated] gRPC call credentials to access the SDS server. gRPC call
        # credentials to access the SDS server.
        # Corresponds to the JSON property `callCredentials`
        # @return [Google::Apis::ComputeAlpha::CallCredentials]
        attr_accessor :call_credentials
      
        # [Deprecated] gRPC channel credentials to access the SDS server. gRPC channel
        # credentials to access the SDS server.
        # Corresponds to the JSON property `channelCredentials`
        # @return [Google::Apis::ComputeAlpha::ChannelCredentials]
        attr_accessor :channel_credentials
      
        # The target URI of the SDS server.
        # Corresponds to the JSON property `targetUri`
        # @return [String]
        attr_accessor :target_uri
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @call_credentials = args[:call_credentials] if args.key?(:call_credentials)
          @channel_credentials = args[:channel_credentials] if args.key?(:channel_credentials)
          @target_uri = args[:target_uri] if args.key?(:target_uri)
        end
      end
      
      # A guest attributes entry.
      class GuestAttributes
        include Google::Apis::Core::Hashable
      
        # [Output Only] Type of the resource. Always compute#guestAttributes for guest
        # attributes entry.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # The path to be queried. This can be the default namespace ('/') or a nested
        # namespace ('/\/') or a specified key ('/\/\')
        # Corresponds to the JSON property `queryPath`
        # @return [String]
        attr_accessor :query_path
      
        # Array of guest attribute namespace/key/value tuples.
        # Corresponds to the JSON property `queryValue`
        # @return [Google::Apis::ComputeAlpha::GuestAttributesValue]
        attr_accessor :query_value
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # The key to search for.
        # Corresponds to the JSON property `variableKey`
        # @return [String]
        attr_accessor :variable_key
      
        # [Output Only] The value found for the requested key.
        # Corresponds to the JSON property `variableValue`
        # @return [String]
        attr_accessor :variable_value
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @kind = args[:kind] if args.key?(:kind)
          @query_path = args[:query_path] if args.key?(:query_path)
          @query_value = args[:query_value] if args.key?(:query_value)
          @self_link = args[:self_link] if args.key?(:self_link)
          @variable_key = args[:variable_key] if args.key?(:variable_key)
          @variable_value = args[:variable_value] if args.key?(:variable_value)
        end
      end
      
      # A guest attributes namespace/key/value entry.
      class GuestAttributesEntry
        include Google::Apis::Core::Hashable
      
        # Key for the guest attribute entry.
        # Corresponds to the JSON property `key`
        # @return [String]
        attr_accessor :key
      
        # Namespace for the guest attribute entry.
        # Corresponds to the JSON property `namespace`
        # @return [String]
        attr_accessor :namespace
      
        # Value for the guest attribute entry.
        # Corresponds to the JSON property `value`
        # @return [String]
        attr_accessor :value
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @key = args[:key] if args.key?(:key)
          @namespace = args[:namespace] if args.key?(:namespace)
          @value = args[:value] if args.key?(:value)
        end
      end
      
      # Array of guest attribute namespace/key/value tuples.
      class GuestAttributesValue
        include Google::Apis::Core::Hashable
      
        # 
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::GuestAttributesEntry>]
        attr_accessor :items
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @items = args[:items] if args.key?(:items)
        end
      end
      
      # Guest OS features.
      class GuestOsFeature
        include Google::Apis::Core::Hashable
      
        # The ID of a supported feature. Read  Enabling guest operating system features
        # to see a list of available options.
        # Corresponds to the JSON property `type`
        # @return [String]
        attr_accessor :type
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @type = args[:type] if args.key?(:type)
        end
      end
      
      # 
      class Http2HealthCheck
        include Google::Apis::Core::Hashable
      
        # The value of the host header in the HTTP/2 health check request. If left empty
        # (default value), the IP on behalf of which this health check is performed will
        # be used.
        # Corresponds to the JSON property `host`
        # @return [String]
        attr_accessor :host
      
        # The TCP port number for the health check request. The default value is 443.
        # Valid values are 1 through 65535.
        # Corresponds to the JSON property `port`
        # @return [Fixnum]
        attr_accessor :port
      
        # Port name as defined in InstanceGroup#NamedPort#name. If both port and
        # port_name are defined, port takes precedence.
        # Corresponds to the JSON property `portName`
        # @return [String]
        attr_accessor :port_name
      
        # Specifies how port is selected for health checking, can be one of following
        # values:
        # USE_FIXED_PORT: The port number in port is used for health checking.
        # USE_NAMED_PORT: The portName is used for health checking.
        # USE_SERVING_PORT: For NetworkEndpointGroup, the port specified for each
        # network endpoint is used for health checking. For other backends, the port or
        # named port specified in the Backend Service is used for health checking.
        # If not specified, HTTP2 health check follows behavior specified in port and
        # portName fields.
        # Corresponds to the JSON property `portSpecification`
        # @return [String]
        attr_accessor :port_specification
      
        # Specifies the type of proxy header to append before sending data to the
        # backend, either NONE or PROXY_V1. The default is NONE.
        # Corresponds to the JSON property `proxyHeader`
        # @return [String]
        attr_accessor :proxy_header
      
        # The request path of the HTTP/2 health check request. The default value is /.
        # Corresponds to the JSON property `requestPath`
        # @return [String]
        attr_accessor :request_path
      
        # The string to match anywhere in the first 1024 bytes of the response body. If
        # left empty (the default value), the status code determines health. The
        # response data can only be ASCII.
        # Corresponds to the JSON property `response`
        # @return [String]
        attr_accessor :response
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @host = args[:host] if args.key?(:host)
          @port = args[:port] if args.key?(:port)
          @port_name = args[:port_name] if args.key?(:port_name)
          @port_specification = args[:port_specification] if args.key?(:port_specification)
          @proxy_header = args[:proxy_header] if args.key?(:proxy_header)
          @request_path = args[:request_path] if args.key?(:request_path)
          @response = args[:response] if args.key?(:response)
        end
      end
      
      # 
      class HttpHealthCheck
        include Google::Apis::Core::Hashable
      
        # The value of the host header in the HTTP health check request. If left empty (
        # default value), the IP on behalf of which this health check is performed will
        # be used.
        # Corresponds to the JSON property `host`
        # @return [String]
        attr_accessor :host
      
        # The TCP port number for the health check request. The default value is 80.
        # Valid values are 1 through 65535.
        # Corresponds to the JSON property `port`
        # @return [Fixnum]
        attr_accessor :port
      
        # Port name as defined in InstanceGroup#NamedPort#name. If both port and
        # port_name are defined, port takes precedence.
        # Corresponds to the JSON property `portName`
        # @return [String]
        attr_accessor :port_name
      
        # Specifies how port is selected for health checking, can be one of following
        # values:
        # USE_FIXED_PORT: The port number in port is used for health checking.
        # USE_NAMED_PORT: The portName is used for health checking.
        # USE_SERVING_PORT: For NetworkEndpointGroup, the port specified for each
        # network endpoint is used for health checking. For other backends, the port or
        # named port specified in the Backend Service is used for health checking.
        # If not specified, HTTP health check follows behavior specified in port and
        # portName fields.
        # Corresponds to the JSON property `portSpecification`
        # @return [String]
        attr_accessor :port_specification
      
        # Specifies the type of proxy header to append before sending data to the
        # backend, either NONE or PROXY_V1. The default is NONE.
        # Corresponds to the JSON property `proxyHeader`
        # @return [String]
        attr_accessor :proxy_header
      
        # The request path of the HTTP health check request. The default value is /.
        # Corresponds to the JSON property `requestPath`
        # @return [String]
        attr_accessor :request_path
      
        # The string to match anywhere in the first 1024 bytes of the response body. If
        # left empty (the default value), the status code determines health. The
        # response data can only be ASCII.
        # Corresponds to the JSON property `response`
        # @return [String]
        attr_accessor :response
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @host = args[:host] if args.key?(:host)
          @port = args[:port] if args.key?(:port)
          @port_name = args[:port_name] if args.key?(:port_name)
          @port_specification = args[:port_specification] if args.key?(:port_specification)
          @proxy_header = args[:proxy_header] if args.key?(:proxy_header)
          @request_path = args[:request_path] if args.key?(:request_path)
          @response = args[:response] if args.key?(:response)
        end
      end
      
      # 
      class HttpsHealthCheck
        include Google::Apis::Core::Hashable
      
        # The value of the host header in the HTTPS health check request. If left empty (
        # default value), the IP on behalf of which this health check is performed will
        # be used.
        # Corresponds to the JSON property `host`
        # @return [String]
        attr_accessor :host
      
        # The TCP port number for the health check request. The default value is 443.
        # Valid values are 1 through 65535.
        # Corresponds to the JSON property `port`
        # @return [Fixnum]
        attr_accessor :port
      
        # Port name as defined in InstanceGroup#NamedPort#name. If both port and
        # port_name are defined, port takes precedence.
        # Corresponds to the JSON property `portName`
        # @return [String]
        attr_accessor :port_name
      
        # Specifies how port is selected for health checking, can be one of following
        # values:
        # USE_FIXED_PORT: The port number in port is used for health checking.
        # USE_NAMED_PORT: The portName is used for health checking.
        # USE_SERVING_PORT: For NetworkEndpointGroup, the port specified for each
        # network endpoint is used for health checking. For other backends, the port or
        # named port specified in the Backend Service is used for health checking.
        # If not specified, HTTPS health check follows behavior specified in port and
        # portName fields.
        # Corresponds to the JSON property `portSpecification`
        # @return [String]
        attr_accessor :port_specification
      
        # Specifies the type of proxy header to append before sending data to the
        # backend, either NONE or PROXY_V1. The default is NONE.
        # Corresponds to the JSON property `proxyHeader`
        # @return [String]
        attr_accessor :proxy_header
      
        # The request path of the HTTPS health check request. The default value is /.
        # Corresponds to the JSON property `requestPath`
        # @return [String]
        attr_accessor :request_path
      
        # The string to match anywhere in the first 1024 bytes of the response body. If
        # left empty (the default value), the status code determines health. The
        # response data can only be ASCII.
        # Corresponds to the JSON property `response`
        # @return [String]
        attr_accessor :response
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @host = args[:host] if args.key?(:host)
          @port = args[:port] if args.key?(:port)
          @port_name = args[:port_name] if args.key?(:port_name)
          @port_specification = args[:port_specification] if args.key?(:port_specification)
          @proxy_header = args[:proxy_header] if args.key?(:proxy_header)
          @request_path = args[:request_path] if args.key?(:request_path)
          @response = args[:response] if args.key?(:response)
        end
      end
      
      # Represents a Health Check resource.
      # Google Compute Engine has two Health Check resources:
      # * [Global](/compute/docs/reference/rest/`$api_version`/healthChecks) * [
      # Regional](/compute/docs/reference/rest/`$api_version`/regionHealthChecks)
      # Internal HTTP(S) load balancers must use regional health checks (`compute.v1.
      # regionHealthChecks`).
      # Traffic Director must use global health checks (`compute.v1.HealthChecks`).
      # Internal TCP/UDP load balancers can use either regional or global health
      # checks (`compute.v1.regionHealthChecks` or `compute.v1.HealthChecks`).
      # External HTTP(S), TCP proxy, and SSL proxy load balancers as well as managed
      # instance group auto-healing must use global health checks (`compute.v1.
      # HealthChecks`).
      # Network load balancers must use legacy HTTP health checks (httpHealthChecks).
      # For more information, see Health checks overview.
      class HealthCheck
        include Google::Apis::Core::Hashable
      
        # How often (in seconds) to send a health check. The default value is 5 seconds.
        # Corresponds to the JSON property `checkIntervalSec`
        # @return [Fixnum]
        attr_accessor :check_interval_sec
      
        # [Output Only] Creation timestamp in 3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # 
        # Corresponds to the JSON property `grpcHealthCheck`
        # @return [Google::Apis::ComputeAlpha::GrpcHealthCheck]
        attr_accessor :grpc_health_check
      
        # A so-far unhealthy instance will be marked healthy after this many consecutive
        # successes. The default value is 2.
        # Corresponds to the JSON property `healthyThreshold`
        # @return [Fixnum]
        attr_accessor :healthy_threshold
      
        # 
        # Corresponds to the JSON property `http2HealthCheck`
        # @return [Google::Apis::ComputeAlpha::Http2HealthCheck]
        attr_accessor :http2_health_check
      
        # 
        # Corresponds to the JSON property `httpHealthCheck`
        # @return [Google::Apis::ComputeAlpha::HttpHealthCheck]
        attr_accessor :http_health_check
      
        # 
        # Corresponds to the JSON property `httpsHealthCheck`
        # @return [Google::Apis::ComputeAlpha::HttpsHealthCheck]
        attr_accessor :https_health_check
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # Type of the resource.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # Configuration of logging on a health check. If logging is enabled, logs will
        # be exported to Stackdriver.
        # Corresponds to the JSON property `logConfig`
        # @return [Google::Apis::ComputeAlpha::HealthCheckLogConfig]
        attr_accessor :log_config
      
        # Name of the resource. Provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # [Output Only] Region where the health check resides. Not applicable to global
        # health checks.
        # Corresponds to the JSON property `region`
        # @return [String]
        attr_accessor :region
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # 
        # Corresponds to the JSON property `sslHealthCheck`
        # @return [Google::Apis::ComputeAlpha::SslHealthCheck]
        attr_accessor :ssl_health_check
      
        # 
        # Corresponds to the JSON property `tcpHealthCheck`
        # @return [Google::Apis::ComputeAlpha::TcpHealthCheck]
        attr_accessor :tcp_health_check
      
        # How long (in seconds) to wait before claiming failure. The default value is 5
        # seconds. It is invalid for timeoutSec to have greater value than
        # checkIntervalSec.
        # Corresponds to the JSON property `timeoutSec`
        # @return [Fixnum]
        attr_accessor :timeout_sec
      
        # Specifies the type of the healthCheck, either TCP, SSL, HTTP, HTTPS or HTTP2.
        # If not specified, the default is TCP. Exactly one of the protocol-specific
        # health check field must be specified, which must match type field.
        # Corresponds to the JSON property `type`
        # @return [String]
        attr_accessor :type
      
        # 
        # Corresponds to the JSON property `udpHealthCheck`
        # @return [Google::Apis::ComputeAlpha::UdpHealthCheck]
        attr_accessor :udp_health_check
      
        # A so-far healthy instance will be marked unhealthy after this many consecutive
        # failures. The default value is 2.
        # Corresponds to the JSON property `unhealthyThreshold`
        # @return [Fixnum]
        attr_accessor :unhealthy_threshold
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @check_interval_sec = args[:check_interval_sec] if args.key?(:check_interval_sec)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @grpc_health_check = args[:grpc_health_check] if args.key?(:grpc_health_check)
          @healthy_threshold = args[:healthy_threshold] if args.key?(:healthy_threshold)
          @http2_health_check = args[:http2_health_check] if args.key?(:http2_health_check)
          @http_health_check = args[:http_health_check] if args.key?(:http_health_check)
          @https_health_check = args[:https_health_check] if args.key?(:https_health_check)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @log_config = args[:log_config] if args.key?(:log_config)
          @name = args[:name] if args.key?(:name)
          @region = args[:region] if args.key?(:region)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @ssl_health_check = args[:ssl_health_check] if args.key?(:ssl_health_check)
          @tcp_health_check = args[:tcp_health_check] if args.key?(:tcp_health_check)
          @timeout_sec = args[:timeout_sec] if args.key?(:timeout_sec)
          @type = args[:type] if args.key?(:type)
          @udp_health_check = args[:udp_health_check] if args.key?(:udp_health_check)
          @unhealthy_threshold = args[:unhealthy_threshold] if args.key?(:unhealthy_threshold)
        end
      end
      
      # Contains a list of HealthCheck resources.
      class HealthCheckList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of HealthCheck resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::HealthCheck>]
        attr_accessor :items
      
        # Type of resource.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::HealthCheckList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::HealthCheckList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Configuration of logging on a health check. If logging is enabled, logs will
      # be exported to Stackdriver.
      class HealthCheckLogConfig
        include Google::Apis::Core::Hashable
      
        # Indicates whether or not to export logs. This is false by default, which means
        # no health check logging will be done.
        # Corresponds to the JSON property `enable`
        # @return [Boolean]
        attr_accessor :enable
        alias_method :enable?, :enable
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @enable = args[:enable] if args.key?(:enable)
        end
      end
      
      # A full or valid partial URL to a health check. For example, the following are
      # valid URLs:
      # - https://www.googleapis.com/compute/beta/projects/project-id/global/
      # httpHealthChecks/health-check
      # - projects/project-id/global/httpHealthChecks/health-check
      # - global/httpHealthChecks/health-check
      class HealthCheckReference
        include Google::Apis::Core::Hashable
      
        # 
        # Corresponds to the JSON property `healthCheck`
        # @return [String]
        attr_accessor :health_check
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @health_check = args[:health_check] if args.key?(:health_check)
        end
      end
      
      # Represents a Health-Check as a Service resource.
      # (== resource_for `$api_version`.regionHealthCheckServices ==)
      class HealthCheckService
        include Google::Apis::Core::Hashable
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # Fingerprint of this resource. A hash of the contents stored in this object.
        # This field is used in optimistic locking. This field will be ignored when
        # inserting a HealthCheckService. An up-to-date fingerprint must be provided in
        # order to patch/update the HealthCheckService; Otherwise, the request will fail
        # with error 412 conditionNotMet. To see the latest fingerprint, make a get()
        # request to retrieve the HealthCheckService.
        # Corresponds to the JSON property `fingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :fingerprint
      
        # List of URLs to the HealthCheck resources. Must have at least one HealthCheck,
        # and not more than 10. HealthCheck resources must have portSpecification=
        # USE_SERVING_PORT. For regional HealthCheckService, the HealthCheck must be
        # regional and in the same region. For global HealthCheckService, HealthCheck
        # must be global. Mix of regional and global HealthChecks is not supported.
        # Multiple regional HealthChecks must belong to the same region. Regional
        # HealthChecks</code? must belong to the same region as zones of NEGs.
        # Corresponds to the JSON property `healthChecks`
        # @return [Array<String>]
        attr_accessor :health_checks
      
        # Optional. Policy for how the results from multiple health checks for the same
        # endpoint are aggregated. Defaults to NO_AGGREGATION if unspecified.
        # - NO_AGGREGATION. An EndpointHealth message is returned for each backend in
        # the health check service.
        # - AND. If any backend's health check reports UNHEALTHY, then UNHEALTHY is the
        # HealthState of the entire health check service. If all backend's are healthy,
        # the HealthState of the health check service is HEALTHY. .
        # Corresponds to the JSON property `healthStatusAggregationPolicy`
        # @return [String]
        attr_accessor :health_status_aggregation_policy
      
        # This field is deprecated. Use health_status_aggregation_policy instead.
        # Policy for how the results from multiple health checks for the same endpoint
        # are aggregated.
        # - NO_AGGREGATION. An EndpointHealth message is returned for each backend in
        # the health check service.
        # - AND. If any backend's health check reports UNHEALTHY, then UNHEALTHY is the
        # HealthState of the entire health check service. If all backend's are healthy,
        # the HealthState of the health check service is HEALTHY. .
        # Corresponds to the JSON property `healthStatusAggregationStrategy`
        # @return [String]
        attr_accessor :health_status_aggregation_strategy
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output only] Type of the resource. Always compute#healthCheckServicefor
        # health check services.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # Name of the resource. The name must be 1-63 characters long, and comply with
        # RFC1035. Specifically, the name must be 1-63 characters long and match the
        # regular expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the first
        # character must be a lowercase letter, and all following characters must be a
        # dash, lowercase letter, or digit, except the last character, which cannot be a
        # dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # List of URLs to the NetworkEndpointGroup resources. Must not have more than
        # 100. For regional HealthCheckService, NEGs must be in zones in the region of
        # the HealthCheckService.
        # Corresponds to the JSON property `networkEndpointGroups`
        # @return [Array<String>]
        attr_accessor :network_endpoint_groups
      
        # List of URLs to the NotificationEndpoint resources. Must not have more than 10.
        # A list of endpoints for receiving notifications of change in health status.
        # For regional HealthCheckService, NotificationEndpoint must be regional and in
        # the same region. For global HealthCheckService, NotificationEndpoint must be
        # global.
        # Corresponds to the JSON property `notificationEndpoints`
        # @return [Array<String>]
        attr_accessor :notification_endpoints
      
        # [Output Only] URL of the region where the health check service resides. This
        # field is not applicable to global health check services. You must specify this
        # field as part of the HTTP request URL. It is not settable as a field in the
        # request body.
        # Corresponds to the JSON property `region`
        # @return [String]
        attr_accessor :region
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL with id for the resource.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @fingerprint = args[:fingerprint] if args.key?(:fingerprint)
          @health_checks = args[:health_checks] if args.key?(:health_checks)
          @health_status_aggregation_policy = args[:health_status_aggregation_policy] if args.key?(:health_status_aggregation_policy)
          @health_status_aggregation_strategy = args[:health_status_aggregation_strategy] if args.key?(:health_status_aggregation_strategy)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @name = args[:name] if args.key?(:name)
          @network_endpoint_groups = args[:network_endpoint_groups] if args.key?(:network_endpoint_groups)
          @notification_endpoints = args[:notification_endpoints] if args.key?(:notification_endpoints)
          @region = args[:region] if args.key?(:region)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
        end
      end
      
      # A full or valid partial URL to a health check service. For example, the
      # following are valid URLs:
      # - https://www.googleapis.com/compute/beta/projects/project-id/regions/us-west1/
      # healthCheckServices/health-check-service
      # - projects/project-id/regions/us-west1/healthCheckServices/health-check-
      # service
      # - regions/us-west1/healthCheckServices/health-check-service
      class HealthCheckServiceReference
        include Google::Apis::Core::Hashable
      
        # 
        # Corresponds to the JSON property `healthCheckService`
        # @return [String]
        attr_accessor :health_check_service
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @health_check_service = args[:health_check_service] if args.key?(:health_check_service)
        end
      end
      
      # 
      class HealthCheckServicesList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of HealthCheckService resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::HealthCheckService>]
        attr_accessor :items
      
        # [Output Only] Type of the resource. Always compute#healthCheckServicesList for
        # lists of HealthCheckServices.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::HealthCheckServicesList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::HealthCheckServicesList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class HealthChecksAggregatedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of HealthChecksScopedList resources.
        # Corresponds to the JSON property `items`
        # @return [Hash<String,Google::Apis::ComputeAlpha::HealthChecksScopedList>]
        attr_accessor :items
      
        # Type of resource.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Unreachable resources.
        # Corresponds to the JSON property `unreachables`
        # @return [Array<String>]
        attr_accessor :unreachables
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::HealthChecksAggregatedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @unreachables = args[:unreachables] if args.key?(:unreachables)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::HealthChecksAggregatedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class HealthChecksScopedList
        include Google::Apis::Core::Hashable
      
        # A list of HealthChecks contained in this scope.
        # Corresponds to the JSON property `healthChecks`
        # @return [Array<Google::Apis::ComputeAlpha::HealthCheck>]
        attr_accessor :health_checks
      
        # Informational warning which replaces the list of backend services when the
        # list is empty.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::HealthChecksScopedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @health_checks = args[:health_checks] if args.key?(:health_checks)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # Informational warning which replaces the list of backend services when the
        # list is empty.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::HealthChecksScopedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class HealthStatus
        include Google::Apis::Core::Hashable
      
        # Metadata defined as annotations for network endpoint.
        # Corresponds to the JSON property `annotations`
        # @return [Hash<String,String>]
        attr_accessor :annotations
      
        # Health state of the instance.
        # Corresponds to the JSON property `healthState`
        # @return [String]
        attr_accessor :health_state
      
        # URL of the instance resource.
        # Corresponds to the JSON property `instance`
        # @return [String]
        attr_accessor :instance
      
        # A forwarding rule IP address assigned to this instance.
        # Corresponds to the JSON property `ipAddress`
        # @return [String]
        attr_accessor :ip_address
      
        # The named port of the instance group, not necessarily the port that is health-
        # checked.
        # Corresponds to the JSON property `port`
        # @return [Fixnum]
        attr_accessor :port
      
        # 
        # Corresponds to the JSON property `weight`
        # @return [String]
        attr_accessor :weight
      
        # 
        # Corresponds to the JSON property `weightError`
        # @return [String]
        attr_accessor :weight_error
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @annotations = args[:annotations] if args.key?(:annotations)
          @health_state = args[:health_state] if args.key?(:health_state)
          @instance = args[:instance] if args.key?(:instance)
          @ip_address = args[:ip_address] if args.key?(:ip_address)
          @port = args[:port] if args.key?(:port)
          @weight = args[:weight] if args.key?(:weight)
          @weight_error = args[:weight_error] if args.key?(:weight_error)
        end
      end
      
      # 
      class HealthStatusForNetworkEndpoint
        include Google::Apis::Core::Hashable
      
        # URL of the backend service associated with the health state of the network
        # endpoint.
        # Corresponds to the JSON property `backendService`
        # @return [Google::Apis::ComputeAlpha::BackendServiceReference]
        attr_accessor :backend_service
      
        # URL of the forwarding rule associated with the health state of the network
        # endpoint.
        # Corresponds to the JSON property `forwardingRule`
        # @return [Google::Apis::ComputeAlpha::ForwardingRuleReference]
        attr_accessor :forwarding_rule
      
        # A full or valid partial URL to a health check. For example, the following are
        # valid URLs:
        # - https://www.googleapis.com/compute/beta/projects/project-id/global/
        # httpHealthChecks/health-check
        # - projects/project-id/global/httpHealthChecks/health-check
        # - global/httpHealthChecks/health-check
        # Corresponds to the JSON property `healthCheck`
        # @return [Google::Apis::ComputeAlpha::HealthCheckReference]
        attr_accessor :health_check
      
        # A full or valid partial URL to a health check service. For example, the
        # following are valid URLs:
        # - https://www.googleapis.com/compute/beta/projects/project-id/regions/us-west1/
        # healthCheckServices/health-check-service
        # - projects/project-id/regions/us-west1/healthCheckServices/health-check-
        # service
        # - regions/us-west1/healthCheckServices/health-check-service
        # Corresponds to the JSON property `healthCheckService`
        # @return [Google::Apis::ComputeAlpha::HealthCheckServiceReference]
        attr_accessor :health_check_service
      
        # Health state of the network endpoint determined based on the health checks
        # configured.
        # Corresponds to the JSON property `healthState`
        # @return [String]
        attr_accessor :health_state
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @backend_service = args[:backend_service] if args.key?(:backend_service)
          @forwarding_rule = args[:forwarding_rule] if args.key?(:forwarding_rule)
          @health_check = args[:health_check] if args.key?(:health_check)
          @health_check_service = args[:health_check_service] if args.key?(:health_check_service)
          @health_state = args[:health_state] if args.key?(:health_state)
        end
      end
      
      # UrlMaps A host-matching rule for a URL. If matched, will use the named
      # PathMatcher to select the BackendService.
      class HostRule
        include Google::Apis::Core::Hashable
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # The list of host patterns to match. They must be valid hostnames with optional
        # port numbers in the format host:port. * matches any string of ([a-z0-9-.]*).
        # In that case, * must be the first character and must be followed in the
        # pattern by either - or ..
        # * based matching is not supported when the URL map is bound to target gRPC
        # proxy that has validateForProxyless field set to true.
        # Corresponds to the JSON property `hosts`
        # @return [Array<String>]
        attr_accessor :hosts
      
        # The name of the PathMatcher to use to match the path portion of the URL if the
        # hostRule matches the URL's host portion.
        # Corresponds to the JSON property `pathMatcher`
        # @return [String]
        attr_accessor :path_matcher
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @description = args[:description] if args.key?(:description)
          @hosts = args[:hosts] if args.key?(:hosts)
          @path_matcher = args[:path_matcher] if args.key?(:path_matcher)
        end
      end
      
      # Specification for how requests are aborted as part of fault injection.
      class HttpFaultAbort
        include Google::Apis::Core::Hashable
      
        # The HTTP status code used to abort the request.
        # The value must be between 200 and 599 inclusive.
        # Corresponds to the JSON property `httpStatus`
        # @return [Fixnum]
        attr_accessor :http_status
      
        # The percentage of traffic (connections/operations/requests) which will be
        # aborted as part of fault injection.
        # The value must be between 0.0 and 100.0 inclusive.
        # Corresponds to the JSON property `percentage`
        # @return [Float]
        attr_accessor :percentage
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @http_status = args[:http_status] if args.key?(:http_status)
          @percentage = args[:percentage] if args.key?(:percentage)
        end
      end
      
      # Specifies the delay introduced by Loadbalancer before forwarding the request
      # to the backend service as part of fault injection.
      class HttpFaultDelay
        include Google::Apis::Core::Hashable
      
        # A Duration represents a fixed-length span of time represented as a count of
        # seconds and fractions of seconds at nanosecond resolution. It is independent
        # of any calendar and concepts like "day" or "month". Range is approximately 10,
        # 000 years.
        # Corresponds to the JSON property `fixedDelay`
        # @return [Google::Apis::ComputeAlpha::Duration]
        attr_accessor :fixed_delay
      
        # The percentage of traffic (connections/operations/requests) on which delay
        # will be introduced as part of fault injection.
        # The value must be between 0.0 and 100.0 inclusive.
        # Corresponds to the JSON property `percentage`
        # @return [Float]
        attr_accessor :percentage
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @fixed_delay = args[:fixed_delay] if args.key?(:fixed_delay)
          @percentage = args[:percentage] if args.key?(:percentage)
        end
      end
      
      # The specification for fault injection introduced into traffic to test the
      # resiliency of clients to backend service failure. As part of fault injection,
      # when clients send requests to a backend service, delays can be introduced by
      # Loadbalancer on a percentage of requests before sending those request to the
      # backend service. Similarly requests from clients can be aborted by the
      # Loadbalancer for a percentage of requests.
      class HttpFaultInjection
        include Google::Apis::Core::Hashable
      
        # Specification for how requests are aborted as part of fault injection.
        # Corresponds to the JSON property `abort`
        # @return [Google::Apis::ComputeAlpha::HttpFaultAbort]
        attr_accessor :abort
      
        # Specifies the delay introduced by Loadbalancer before forwarding the request
        # to the backend service as part of fault injection.
        # Corresponds to the JSON property `delay`
        # @return [Google::Apis::ComputeAlpha::HttpFaultDelay]
        attr_accessor :delay
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @abort = args[:abort] if args.key?(:abort)
          @delay = args[:delay] if args.key?(:delay)
        end
      end
      
      # HttpFilterConfiguration supplies additional contextual settings for
      # networkservices.HttpFilter resources enabled by Traffic Director.
      class HttpFilterConfig
        include Google::Apis::Core::Hashable
      
        # The configuration needed to enable the networkservices.HttpFilter resource.
        # The configuration must be YAML formatted and only contain fields defined in
        # the protobuf identified in configTypeUrl
        # Corresponds to the JSON property `config`
        # @return [String]
        attr_accessor :config
      
        # The fully qualified versioned proto3 type url of the protobuf that the filter
        # expects for its contextual settings, for example: type.googleapis.com/google.
        # protobuf.Struct
        # Corresponds to the JSON property `configTypeUrl`
        # @return [String]
        attr_accessor :config_type_url
      
        # Name of the networkservices.HttpFilter resource this configuration belongs to.
        # This name must be known to the xDS client. Example: envoy.wasm
        # Corresponds to the JSON property `filterName`
        # @return [String]
        attr_accessor :filter_name
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @config = args[:config] if args.key?(:config)
          @config_type_url = args[:config_type_url] if args.key?(:config_type_url)
          @filter_name = args[:filter_name] if args.key?(:filter_name)
        end
      end
      
      # The request and response header transformations that take effect before the
      # request is passed along to the selected backendService.
      class HttpHeaderAction
        include Google::Apis::Core::Hashable
      
        # Headers to add to a matching request prior to forwarding the request to the
        # backendService.
        # Corresponds to the JSON property `requestHeadersToAdd`
        # @return [Array<Google::Apis::ComputeAlpha::HttpHeaderOption>]
        attr_accessor :request_headers_to_add
      
        # A list of header names for headers that need to be removed from the request
        # prior to forwarding the request to the backendService.
        # Corresponds to the JSON property `requestHeadersToRemove`
        # @return [Array<String>]
        attr_accessor :request_headers_to_remove
      
        # Headers to add the response prior to sending the response back to the client.
        # Corresponds to the JSON property `responseHeadersToAdd`
        # @return [Array<Google::Apis::ComputeAlpha::HttpHeaderOption>]
        attr_accessor :response_headers_to_add
      
        # A list of header names for headers that need to be removed from the response
        # prior to sending the response back to the client.
        # Corresponds to the JSON property `responseHeadersToRemove`
        # @return [Array<String>]
        attr_accessor :response_headers_to_remove
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @request_headers_to_add = args[:request_headers_to_add] if args.key?(:request_headers_to_add)
          @request_headers_to_remove = args[:request_headers_to_remove] if args.key?(:request_headers_to_remove)
          @response_headers_to_add = args[:response_headers_to_add] if args.key?(:response_headers_to_add)
          @response_headers_to_remove = args[:response_headers_to_remove] if args.key?(:response_headers_to_remove)
        end
      end
      
      # matchRule criteria for request header matches.
      class HttpHeaderMatch
        include Google::Apis::Core::Hashable
      
        # The value should exactly match contents of exactMatch.
        # Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or
        # rangeMatch must be set.
        # Corresponds to the JSON property `exactMatch`
        # @return [String]
        attr_accessor :exact_match
      
        # The name of the HTTP header to match.
        # For matching against the HTTP request's authority, use a headerMatch with the
        # header name ":authority".
        # For matching a request's method, use the headerName ":method".
        # When the URL map is bound to target gRPC proxy that has validateForProxyless
        # field set to true, only non-binary user-specified custom metadata and the `
        # content-type` header are supported. The following transport-level headers
        # cannot be used in header matching rules: `:authority`, `:method`, `:path`, `:
        # scheme`, `user-agent`, `accept-encoding`, `content-encoding`, `grpc-accept-
        # encoding`, `grpc-encoding`, `grpc-previous-rpc-attempts`, `grpc-tags-bin`, `
        # grpc-timeout` and `grpc-trace-bin.
        # Corresponds to the JSON property `headerName`
        # @return [String]
        attr_accessor :header_name
      
        # If set to false, the headerMatch is considered a match if the match criteria
        # above are met. If set to true, the headerMatch is considered a match if the
        # match criteria above are NOT met.
        # The default setting is false.
        # Corresponds to the JSON property `invertMatch`
        # @return [Boolean]
        attr_accessor :invert_match
        alias_method :invert_match?, :invert_match
      
        # The value of the header must start with the contents of prefixMatch.
        # Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or
        # rangeMatch must be set.
        # Corresponds to the JSON property `prefixMatch`
        # @return [String]
        attr_accessor :prefix_match
      
        # A header with the contents of headerName must exist. The match takes place
        # whether or not the request's header has a value.
        # Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or
        # rangeMatch must be set.
        # Corresponds to the JSON property `presentMatch`
        # @return [Boolean]
        attr_accessor :present_match
        alias_method :present_match?, :present_match
      
        # HttpRouteRuleMatch criteria for field values that must stay within the
        # specified integer range.
        # Corresponds to the JSON property `rangeMatch`
        # @return [Google::Apis::ComputeAlpha::Int64RangeMatch]
        attr_accessor :range_match
      
        # The value of the header must match the regular expression specified in
        # regexMatch. For regular expression grammar, please see:  en.cppreference.com/w/
        # cpp/regex/ecmascript
        # For matching against a port specified in the HTTP request, use a headerMatch
        # with headerName set to PORT and a regular expression that satisfies the
        # RFC2616 Host header's port specifier.
        # Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or
        # rangeMatch must be set.
        # Note that regexMatch only applies to Loadbalancers that have their
        # loadBalancingScheme set to INTERNAL_SELF_MANAGED.
        # Corresponds to the JSON property `regexMatch`
        # @return [String]
        attr_accessor :regex_match
      
        # The value of the header must end with the contents of suffixMatch.
        # Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or
        # rangeMatch must be set.
        # Corresponds to the JSON property `suffixMatch`
        # @return [String]
        attr_accessor :suffix_match
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @exact_match = args[:exact_match] if args.key?(:exact_match)
          @header_name = args[:header_name] if args.key?(:header_name)
          @invert_match = args[:invert_match] if args.key?(:invert_match)
          @prefix_match = args[:prefix_match] if args.key?(:prefix_match)
          @present_match = args[:present_match] if args.key?(:present_match)
          @range_match = args[:range_match] if args.key?(:range_match)
          @regex_match = args[:regex_match] if args.key?(:regex_match)
          @suffix_match = args[:suffix_match] if args.key?(:suffix_match)
        end
      end
      
      # Specification determining how headers are added to requests or responses.
      class HttpHeaderOption
        include Google::Apis::Core::Hashable
      
        # The name of the header.
        # Corresponds to the JSON property `headerName`
        # @return [String]
        attr_accessor :header_name
      
        # The value of the header to add.
        # Corresponds to the JSON property `headerValue`
        # @return [String]
        attr_accessor :header_value
      
        # If false, headerValue is appended to any values that already exist for the
        # header. If true, headerValue is set for the header, discarding any values that
        # were set for that header.
        # The default value is false.
        # Corresponds to the JSON property `replace`
        # @return [Boolean]
        attr_accessor :replace
        alias_method :replace?, :replace
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @header_name = args[:header_name] if args.key?(:header_name)
          @header_value = args[:header_value] if args.key?(:header_value)
          @replace = args[:replace] if args.key?(:replace)
        end
      end
      
      # Represents a legacy HTTP Health Check resource.
      # Legacy health checks are required by network load balancers. For more
      # information, read Health Check Concepts.
      class HttpHealthCheck
        include Google::Apis::Core::Hashable
      
        # How often (in seconds) to send a health check. The default value is 5 seconds.
        # Corresponds to the JSON property `checkIntervalSec`
        # @return [Fixnum]
        attr_accessor :check_interval_sec
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # A so-far unhealthy instance will be marked healthy after this many consecutive
        # successes. The default value is 2.
        # Corresponds to the JSON property `healthyThreshold`
        # @return [Fixnum]
        attr_accessor :healthy_threshold
      
        # The value of the host header in the HTTP health check request. If left empty (
        # default value), the public IP on behalf of which this health check is
        # performed will be used.
        # Corresponds to the JSON property `host`
        # @return [String]
        attr_accessor :host
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] Type of the resource. Always compute#httpHealthCheck for HTTP
        # health checks.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # Name of the resource. Provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # The TCP port number for the HTTP health check request. The default value is 80.
        # Corresponds to the JSON property `port`
        # @return [Fixnum]
        attr_accessor :port
      
        # The request path of the HTTP health check request. The default value is /.
        # This field does not support query parameters.
        # Corresponds to the JSON property `requestPath`
        # @return [String]
        attr_accessor :request_path
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # How long (in seconds) to wait before claiming failure. The default value is 5
        # seconds. It is invalid for timeoutSec to have greater value than
        # checkIntervalSec.
        # Corresponds to the JSON property `timeoutSec`
        # @return [Fixnum]
        attr_accessor :timeout_sec
      
        # A so-far healthy instance will be marked unhealthy after this many consecutive
        # failures. The default value is 2.
        # Corresponds to the JSON property `unhealthyThreshold`
        # @return [Fixnum]
        attr_accessor :unhealthy_threshold
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @check_interval_sec = args[:check_interval_sec] if args.key?(:check_interval_sec)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @healthy_threshold = args[:healthy_threshold] if args.key?(:healthy_threshold)
          @host = args[:host] if args.key?(:host)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @name = args[:name] if args.key?(:name)
          @port = args[:port] if args.key?(:port)
          @request_path = args[:request_path] if args.key?(:request_path)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @timeout_sec = args[:timeout_sec] if args.key?(:timeout_sec)
          @unhealthy_threshold = args[:unhealthy_threshold] if args.key?(:unhealthy_threshold)
        end
      end
      
      # Contains a list of HttpHealthCheck resources.
      class HttpHealthCheckList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of HttpHealthCheck resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::HttpHealthCheck>]
        attr_accessor :items
      
        # Type of resource.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::HttpHealthCheckList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::HttpHealthCheckList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # HttpRouteRuleMatch criteria for a request's query parameter.
      class HttpQueryParameterMatch
        include Google::Apis::Core::Hashable
      
        # The queryParameterMatch matches if the value of the parameter exactly matches
        # the contents of exactMatch.
        # Only one of presentMatch, exactMatch or regexMatch must be set.
        # Corresponds to the JSON property `exactMatch`
        # @return [String]
        attr_accessor :exact_match
      
        # The name of the query parameter to match. The query parameter must exist in
        # the request, in the absence of which the request match fails.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # Specifies that the queryParameterMatch matches if the request contains the
        # query parameter, irrespective of whether the parameter has a value or not.
        # Only one of presentMatch, exactMatch or regexMatch must be set.
        # Corresponds to the JSON property `presentMatch`
        # @return [Boolean]
        attr_accessor :present_match
        alias_method :present_match?, :present_match
      
        # The queryParameterMatch matches if the value of the parameter matches the
        # regular expression specified by regexMatch. For the regular expression grammar,
        # please see en.cppreference.com/w/cpp/regex/ecmascript
        # Only one of presentMatch, exactMatch or regexMatch must be set.
        # Note that regexMatch only applies when the loadBalancingScheme is set to
        # INTERNAL_SELF_MANAGED.
        # Corresponds to the JSON property `regexMatch`
        # @return [String]
        attr_accessor :regex_match
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @exact_match = args[:exact_match] if args.key?(:exact_match)
          @name = args[:name] if args.key?(:name)
          @present_match = args[:present_match] if args.key?(:present_match)
          @regex_match = args[:regex_match] if args.key?(:regex_match)
        end
      end
      
      # Specifies settings for an HTTP redirect.
      class HttpRedirectAction
        include Google::Apis::Core::Hashable
      
        # The host that will be used in the redirect response instead of the one that
        # was supplied in the request.
        # The value must be between 1 and 255 characters.
        # Corresponds to the JSON property `hostRedirect`
        # @return [String]
        attr_accessor :host_redirect
      
        # If set to true, the URL scheme in the redirected request is set to https. If
        # set to false, the URL scheme of the redirected request will remain the same as
        # that of the request.
        # This must only be set for UrlMaps used in TargetHttpProxys. Setting this true
        # for TargetHttpsProxy is not permitted.
        # The default is set to false.
        # Corresponds to the JSON property `httpsRedirect`
        # @return [Boolean]
        attr_accessor :https_redirect
        alias_method :https_redirect?, :https_redirect
      
        # The path that will be used in the redirect response instead of the one that
        # was supplied in the request.
        # pathRedirect cannot be supplied together with prefixRedirect. Supply one alone
        # or neither. If neither is supplied, the path of the original request will be
        # used for the redirect.
        # The value must be between 1 and 1024 characters.
        # Corresponds to the JSON property `pathRedirect`
        # @return [String]
        attr_accessor :path_redirect
      
        # The prefix that replaces the prefixMatch specified in the HttpRouteRuleMatch,
        # retaining the remaining portion of the URL before redirecting the request.
        # prefixRedirect cannot be supplied together with pathRedirect. Supply one alone
        # or neither. If neither is supplied, the path of the original request will be
        # used for the redirect.
        # The value must be between 1 and 1024 characters.
        # Corresponds to the JSON property `prefixRedirect`
        # @return [String]
        attr_accessor :prefix_redirect
      
        # The HTTP Status code to use for this RedirectAction.
        # Supported values are:
        # - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds to 301.
        # 
        # - FOUND, which corresponds to 302.
        # - SEE_OTHER which corresponds to 303.
        # - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request
        # method will be retained.
        # - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request
        # method will be retained.
        # Corresponds to the JSON property `redirectResponseCode`
        # @return [String]
        attr_accessor :redirect_response_code
      
        # If set to true, any accompanying query portion of the original URL is removed
        # prior to redirecting the request. If set to false, the query portion of the
        # original URL is retained.
        # The default is set to false.
        # Corresponds to the JSON property `stripQuery`
        # @return [Boolean]
        attr_accessor :strip_query
        alias_method :strip_query?, :strip_query
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @host_redirect = args[:host_redirect] if args.key?(:host_redirect)
          @https_redirect = args[:https_redirect] if args.key?(:https_redirect)
          @path_redirect = args[:path_redirect] if args.key?(:path_redirect)
          @prefix_redirect = args[:prefix_redirect] if args.key?(:prefix_redirect)
          @redirect_response_code = args[:redirect_response_code] if args.key?(:redirect_response_code)
          @strip_query = args[:strip_query] if args.key?(:strip_query)
        end
      end
      
      # The retry policy associates with HttpRouteRule
      class HttpRetryPolicy
        include Google::Apis::Core::Hashable
      
        # Specifies the allowed number retries. This number must be > 0. If not
        # specified, defaults to 1.
        # Corresponds to the JSON property `numRetries`
        # @return [Fixnum]
        attr_accessor :num_retries
      
        # A Duration represents a fixed-length span of time represented as a count of
        # seconds and fractions of seconds at nanosecond resolution. It is independent
        # of any calendar and concepts like "day" or "month". Range is approximately 10,
        # 000 years.
        # Corresponds to the JSON property `perTryTimeout`
        # @return [Google::Apis::ComputeAlpha::Duration]
        attr_accessor :per_try_timeout
      
        # Specfies one or more conditions when this retry rule applies. Valid values are:
        # 
        # - 5xx: Loadbalancer will attempt a retry if the backend service responds with
        # any 5xx response code, or if the backend service does not respond at all,
        # example: disconnects, reset, read timeout, connection failure, and refused
        # streams.
        # - gateway-error: Similar to 5xx, but only applies to response codes 502, 503
        # or 504.
        # -
        # - connect-failure: Loadbalancer will retry on failures connecting to backend
        # services, for example due to connection timeouts.
        # - retriable-4xx: Loadbalancer will retry for retriable 4xx response codes.
        # Currently the only retriable error supported is 409.
        # - refused-stream:Loadbalancer will retry if the backend service resets the
        # stream with a REFUSED_STREAM error code. This reset type indicates that it is
        # safe to retry.
        # - cancelledLoadbalancer will retry if the gRPC status code in the response
        # header is set to cancelled
        # - deadline-exceeded: Loadbalancer will retry if the gRPC status code in the
        # response header is set to deadline-exceeded
        # - resource-exhausted: Loadbalancer will retry if the gRPC status code in the
        # response header is set to resource-exhausted
        # - unavailable: Loadbalancer will retry if the gRPC status code in the response
        # header is set to unavailable
        # Corresponds to the JSON property `retryConditions`
        # @return [Array<String>]
        attr_accessor :retry_conditions
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @num_retries = args[:num_retries] if args.key?(:num_retries)
          @per_try_timeout = args[:per_try_timeout] if args.key?(:per_try_timeout)
          @retry_conditions = args[:retry_conditions] if args.key?(:retry_conditions)
        end
      end
      
      # 
      class HttpRouteAction
        include Google::Apis::Core::Hashable
      
        # The specification for allowing client side cross-origin requests. Please see
        # W3C Recommendation for Cross Origin Resource Sharing
        # Corresponds to the JSON property `corsPolicy`
        # @return [Google::Apis::ComputeAlpha::CorsPolicy]
        attr_accessor :cors_policy
      
        # The specification for fault injection introduced into traffic to test the
        # resiliency of clients to backend service failure. As part of fault injection,
        # when clients send requests to a backend service, delays can be introduced by
        # Loadbalancer on a percentage of requests before sending those request to the
        # backend service. Similarly requests from clients can be aborted by the
        # Loadbalancer for a percentage of requests.
        # Corresponds to the JSON property `faultInjectionPolicy`
        # @return [Google::Apis::ComputeAlpha::HttpFaultInjection]
        attr_accessor :fault_injection_policy
      
        # A policy that specifies how requests intended for the route's backends are
        # shadowed to a separate mirrored backend service. Loadbalancer does not wait
        # for responses from the shadow service. Prior to sending traffic to the shadow
        # service, the host / authority header is suffixed with -shadow.
        # Corresponds to the JSON property `requestMirrorPolicy`
        # @return [Google::Apis::ComputeAlpha::RequestMirrorPolicy]
        attr_accessor :request_mirror_policy
      
        # The retry policy associates with HttpRouteRule
        # Corresponds to the JSON property `retryPolicy`
        # @return [Google::Apis::ComputeAlpha::HttpRetryPolicy]
        attr_accessor :retry_policy
      
        # A Duration represents a fixed-length span of time represented as a count of
        # seconds and fractions of seconds at nanosecond resolution. It is independent
        # of any calendar and concepts like "day" or "month". Range is approximately 10,
        # 000 years.
        # Corresponds to the JSON property `timeout`
        # @return [Google::Apis::ComputeAlpha::Duration]
        attr_accessor :timeout
      
        # The spec for modifying the path before sending the request to the matched
        # backend service.
        # Corresponds to the JSON property `urlRewrite`
        # @return [Google::Apis::ComputeAlpha::UrlRewrite]
        attr_accessor :url_rewrite
      
        # A list of weighted backend services to send traffic to when a route match
        # occurs. The weights determine the fraction of traffic that flows to their
        # corresponding backend service. If all traffic needs to go to a single backend
        # service, there must be one  weightedBackendService with weight set to a non-
        # zero number.
        # Once a backendService is identified and before forwarding the request to the
        # backend service, advanced routing actions such as URL rewrites and header
        # transformations are applied depending on additional settings specified in this
        # HttpRouteAction.
        # Corresponds to the JSON property `weightedBackendServices`
        # @return [Array<Google::Apis::ComputeAlpha::WeightedBackendService>]
        attr_accessor :weighted_backend_services
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @cors_policy = args[:cors_policy] if args.key?(:cors_policy)
          @fault_injection_policy = args[:fault_injection_policy] if args.key?(:fault_injection_policy)
          @request_mirror_policy = args[:request_mirror_policy] if args.key?(:request_mirror_policy)
          @retry_policy = args[:retry_policy] if args.key?(:retry_policy)
          @timeout = args[:timeout] if args.key?(:timeout)
          @url_rewrite = args[:url_rewrite] if args.key?(:url_rewrite)
          @weighted_backend_services = args[:weighted_backend_services] if args.key?(:weighted_backend_services)
        end
      end
      
      # An HttpRouteRule specifies how to match an HTTP request and the corresponding
      # routing action that load balancing proxies will perform.
      class HttpRouteRule
        include Google::Apis::Core::Hashable
      
        # The short description conveying the intent of this routeRule.
        # The description can have a maximum length of 1024 characters.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # The request and response header transformations that take effect before the
        # request is passed along to the selected backendService.
        # Corresponds to the JSON property `headerAction`
        # @return [Google::Apis::ComputeAlpha::HttpHeaderAction]
        attr_accessor :header_action
      
        # Outbound route specific configuration for networkservices.HttpFilter resources
        # enabled by Traffic Director. httpFilterConfigs only applies for Loadbalancers
        # with loadBalancingScheme set to INTERNAL_SELF_MANAGED. See ForwardingRule for
        # more details.
        # Not supported when the URL map is bound to target gRPC proxy that has
        # validateForProxyless field set to true.
        # Corresponds to the JSON property `httpFilterConfigs`
        # @return [Array<Google::Apis::ComputeAlpha::HttpFilterConfig>]
        attr_accessor :http_filter_configs
      
        # Outbound route specific metadata supplied to networkservices.HttpFilter
        # resources enabled by Traffic Director. httpFilterMetadata only applies for
        # Loadbalancers with loadBalancingScheme set to INTERNAL_SELF_MANAGED. See
        # ForwardingRule for more details.
        # The only configTypeUrl supported is type.googleapis.com/google.protobuf.Struct
        # Not supported when the URL map is bound to target gRPC proxy that has
        # validateForProxyless field set to true.
        # Corresponds to the JSON property `httpFilterMetadata`
        # @return [Array<Google::Apis::ComputeAlpha::HttpFilterConfig>]
        attr_accessor :http_filter_metadata
      
        # The list of criteria for matching attributes of a request to this routeRule.
        # This list has OR semantics: the request matches this routeRule when any of the
        # matchRules are satisfied. However predicates within a given matchRule have AND
        # semantics. All predicates within a matchRule must match for the request to
        # match the rule.
        # Corresponds to the JSON property `matchRules`
        # @return [Array<Google::Apis::ComputeAlpha::HttpRouteRuleMatch>]
        attr_accessor :match_rules
      
        # For routeRules within a given pathMatcher, priority determines the order in
        # which load balancer will interpret routeRules. RouteRules are evaluated in
        # order of priority, from the lowest to highest number. The priority of a rule
        # decreases as its number increases (1, 2, 3, N+1). The first rule that matches
        # the request is applied.
        # You cannot configure two or more routeRules with the same priority. Priority
        # for each rule must be set to a number between 0 and 2147483647 inclusive.
        # Priority numbers can have gaps, which enable you to add or remove rules in the
        # future without affecting the rest of the rules. For example, 1, 2, 3, 4, 5, 9,
        # 12, 16 is a valid series of priority numbers to which you could add rules
        # numbered from 6 to 8, 10 to 11, and 13 to 15 in the future without any impact
        # on existing rules.
        # Corresponds to the JSON property `priority`
        # @return [Fixnum]
        attr_accessor :priority
      
        # In response to a matching matchRule, the load balancer performs advanced
        # routing actions like URL rewrites, header transformations, etc. prior to
        # forwarding the request to the selected backend. If  routeAction specifies any
        # weightedBackendServices, service must not be set. Conversely if service is set,
        # routeAction cannot contain any  weightedBackendServices.
        # Only one of urlRedirect, service or routeAction.weightedBackendService must be
        # set.
        # UrlMaps for external HTTP(S) load balancers support only the urlRewrite action
        # within a routeRule's routeAction.
        # Corresponds to the JSON property `routeAction`
        # @return [Google::Apis::ComputeAlpha::HttpRouteAction]
        attr_accessor :route_action
      
        # The full or partial URL of the backend service resource to which traffic is
        # directed if this rule is matched. If routeAction is additionally specified,
        # advanced routing actions like URL Rewrites, etc. take effect prior to sending
        # the request to the backend. However, if service is specified, routeAction
        # cannot contain any weightedBackendService s. Conversely, if routeAction
        # specifies any  weightedBackendServices, service must not be specified.
        # Only one of urlRedirect, service or routeAction.weightedBackendService must be
        # set.
        # Corresponds to the JSON property `service`
        # @return [String]
        attr_accessor :service
      
        # Specifies settings for an HTTP redirect.
        # Corresponds to the JSON property `urlRedirect`
        # @return [Google::Apis::ComputeAlpha::HttpRedirectAction]
        attr_accessor :url_redirect
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @description = args[:description] if args.key?(:description)
          @header_action = args[:header_action] if args.key?(:header_action)
          @http_filter_configs = args[:http_filter_configs] if args.key?(:http_filter_configs)
          @http_filter_metadata = args[:http_filter_metadata] if args.key?(:http_filter_metadata)
          @match_rules = args[:match_rules] if args.key?(:match_rules)
          @priority = args[:priority] if args.key?(:priority)
          @route_action = args[:route_action] if args.key?(:route_action)
          @service = args[:service] if args.key?(:service)
          @url_redirect = args[:url_redirect] if args.key?(:url_redirect)
        end
      end
      
      # HttpRouteRuleMatch specifies a set of criteria for matching requests to an
      # HttpRouteRule. All specified criteria must be satisfied for a match to occur.
      class HttpRouteRuleMatch
        include Google::Apis::Core::Hashable
      
        # For satisfying the matchRule condition, the path of the request must exactly
        # match the value specified in fullPathMatch after removing any query parameters
        # and anchor that may be part of the original URL.
        # fullPathMatch must be between 1 and 1024 characters.
        # Only one of prefixMatch, fullPathMatch or regexMatch must be specified.
        # Corresponds to the JSON property `fullPathMatch`
        # @return [String]
        attr_accessor :full_path_match
      
        # Specifies a list of header match criteria, all of which must match
        # corresponding headers in the request.
        # Corresponds to the JSON property `headerMatches`
        # @return [Array<Google::Apis::ComputeAlpha::HttpHeaderMatch>]
        attr_accessor :header_matches
      
        # Specifies that prefixMatch and fullPathMatch matches are case sensitive.
        # The default value is false.
        # ignoreCase must not be used with regexMatch.
        # Not supported when the URL map is bound to target gRPC proxy.
        # Corresponds to the JSON property `ignoreCase`
        # @return [Boolean]
        attr_accessor :ignore_case
        alias_method :ignore_case?, :ignore_case
      
        # Opaque filter criteria used by Loadbalancer to restrict routing configuration
        # to a limited set of xDS compliant clients. In their xDS requests to
        # Loadbalancer, xDS clients present node metadata. When there is a match, the
        # relevant routing configuration is made available to those proxies.
        # For each metadataFilter in this list, if its filterMatchCriteria is set to
        # MATCH_ANY, at least one of the filterLabels must match the corresponding label
        # provided in the metadata. If its filterMatchCriteria is set to MATCH_ALL, then
        # all of its filterLabels must match with corresponding labels provided in the
        # metadata. If multiple metadataFilters are specified, all of them need to be
        # satisfied in order to be considered a match.
        # metadataFilters specified here will be applied after those specified in
        # ForwardingRule that refers to the UrlMap this HttpRouteRuleMatch belongs to.
        # metadataFilters only applies to Loadbalancers that have their
        # loadBalancingScheme set to INTERNAL_SELF_MANAGED.
        # Not supported when the URL map is bound to target gRPC proxy that has
        # validateForProxyless field set to true.
        # Corresponds to the JSON property `metadataFilters`
        # @return [Array<Google::Apis::ComputeAlpha::MetadataFilter>]
        attr_accessor :metadata_filters
      
        # For satisfying the matchRule condition, the request's path must begin with the
        # specified prefixMatch. prefixMatch must begin with a /.
        # The value must be between 1 and 1024 characters.
        # Only one of prefixMatch, fullPathMatch or regexMatch must be specified.
        # Corresponds to the JSON property `prefixMatch`
        # @return [String]
        attr_accessor :prefix_match
      
        # Specifies a list of query parameter match criteria, all of which must match
        # corresponding query parameters in the request.
        # Not supported when the URL map is bound to target gRPC proxy.
        # Corresponds to the JSON property `queryParameterMatches`
        # @return [Array<Google::Apis::ComputeAlpha::HttpQueryParameterMatch>]
        attr_accessor :query_parameter_matches
      
        # For satisfying the matchRule condition, the path of the request must satisfy
        # the regular expression specified in regexMatch after removing any query
        # parameters and anchor supplied with the original URL. For regular expression
        # grammar please see en.cppreference.com/w/cpp/regex/ecmascript
        # Only one of prefixMatch, fullPathMatch or regexMatch must be specified.
        # Note that regexMatch only applies to Loadbalancers that have their
        # loadBalancingScheme set to INTERNAL_SELF_MANAGED.
        # Corresponds to the JSON property `regexMatch`
        # @return [String]
        attr_accessor :regex_match
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @full_path_match = args[:full_path_match] if args.key?(:full_path_match)
          @header_matches = args[:header_matches] if args.key?(:header_matches)
          @ignore_case = args[:ignore_case] if args.key?(:ignore_case)
          @metadata_filters = args[:metadata_filters] if args.key?(:metadata_filters)
          @prefix_match = args[:prefix_match] if args.key?(:prefix_match)
          @query_parameter_matches = args[:query_parameter_matches] if args.key?(:query_parameter_matches)
          @regex_match = args[:regex_match] if args.key?(:regex_match)
        end
      end
      
      # Represents a legacy HTTPS Health Check resource.
      # Legacy health checks are required by network load balancers. For more
      # information, read Health Check Concepts.
      class HttpsHealthCheck
        include Google::Apis::Core::Hashable
      
        # How often (in seconds) to send a health check. The default value is 5 seconds.
        # Corresponds to the JSON property `checkIntervalSec`
        # @return [Fixnum]
        attr_accessor :check_interval_sec
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # A so-far unhealthy instance will be marked healthy after this many consecutive
        # successes. The default value is 2.
        # Corresponds to the JSON property `healthyThreshold`
        # @return [Fixnum]
        attr_accessor :healthy_threshold
      
        # The value of the host header in the HTTPS health check request. If left empty (
        # default value), the public IP on behalf of which this health check is
        # performed will be used.
        # Corresponds to the JSON property `host`
        # @return [String]
        attr_accessor :host
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # Type of the resource.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # Name of the resource. Provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # The TCP port number for the HTTPS health check request. The default value is
        # 443.
        # Corresponds to the JSON property `port`
        # @return [Fixnum]
        attr_accessor :port
      
        # The request path of the HTTPS health check request. The default value is "/".
        # Corresponds to the JSON property `requestPath`
        # @return [String]
        attr_accessor :request_path
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # How long (in seconds) to wait before claiming failure. The default value is 5
        # seconds. It is invalid for timeoutSec to have a greater value than
        # checkIntervalSec.
        # Corresponds to the JSON property `timeoutSec`
        # @return [Fixnum]
        attr_accessor :timeout_sec
      
        # A so-far healthy instance will be marked unhealthy after this many consecutive
        # failures. The default value is 2.
        # Corresponds to the JSON property `unhealthyThreshold`
        # @return [Fixnum]
        attr_accessor :unhealthy_threshold
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @check_interval_sec = args[:check_interval_sec] if args.key?(:check_interval_sec)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @healthy_threshold = args[:healthy_threshold] if args.key?(:healthy_threshold)
          @host = args[:host] if args.key?(:host)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @name = args[:name] if args.key?(:name)
          @port = args[:port] if args.key?(:port)
          @request_path = args[:request_path] if args.key?(:request_path)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @timeout_sec = args[:timeout_sec] if args.key?(:timeout_sec)
          @unhealthy_threshold = args[:unhealthy_threshold] if args.key?(:unhealthy_threshold)
        end
      end
      
      # Contains a list of HttpsHealthCheck resources.
      class HttpsHealthCheckList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of HttpsHealthCheck resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::HttpsHealthCheck>]
        attr_accessor :items
      
        # Type of resource.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::HttpsHealthCheckList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::HttpsHealthCheckList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Represents an Image resource.
      # You can use images to create boot disks for your VM instances. For more
      # information, read Images. (== resource_for `$api_version`.images ==)
      class Image
        include Google::Apis::Core::Hashable
      
        # Size of the image tar.gz archive stored in Google Cloud Storage (in bytes).
        # Corresponds to the JSON property `archiveSizeBytes`
        # @return [Fixnum]
        attr_accessor :archive_size_bytes
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # Deprecation status for a public resource.
        # Corresponds to the JSON property `deprecated`
        # @return [Google::Apis::ComputeAlpha::DeprecationStatus]
        attr_accessor :deprecated
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # Size of the image when restored onto a persistent disk (in GB).
        # Corresponds to the JSON property `diskSizeGb`
        # @return [Fixnum]
        attr_accessor :disk_size_gb
      
        # The name of the image family to which this image belongs. You can create disks
        # by specifying an image family instead of a specific image name. The image
        # family always returns its latest image that is not deprecated. The name of the
        # image family must comply with RFC1035.
        # Corresponds to the JSON property `family`
        # @return [String]
        attr_accessor :family
      
        # A list of features to enable on the guest operating system. Applicable only
        # for bootable images. Read  Enabling guest operating system features to see a
        # list of available options.
        # Corresponds to the JSON property `guestOsFeatures`
        # @return [Array<Google::Apis::ComputeAlpha::GuestOsFeature>]
        attr_accessor :guest_os_features
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # Encrypts the image using a customer-supplied encryption key.
        # After you encrypt an image with a customer-supplied key, you must provide the
        # same key if you use the image later (e.g. to create a disk from the image).
        # Customer-supplied encryption keys do not protect access to metadata of the
        # disk.
        # If you do not provide an encryption key when creating the image, then the disk
        # will be encrypted using an automatically generated key and you do not need to
        # provide a key to use the image later.
        # Corresponds to the JSON property `imageEncryptionKey`
        # @return [Google::Apis::ComputeAlpha::CustomerEncryptionKey]
        attr_accessor :image_encryption_key
      
        # [Output Only] Type of the resource. Always compute#image for images.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # A fingerprint for the labels being applied to this image, which is essentially
        # a hash of the labels used for optimistic locking. The fingerprint is initially
        # generated by Compute Engine and changes after every request to modify or
        # update labels. You must always provide an up-to-date fingerprint hash in order
        # to update or change labels, otherwise the request will fail with error 412
        # conditionNotMet.
        # To see the latest fingerprint, make a get() request to retrieve an image.
        # Corresponds to the JSON property `labelFingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :label_fingerprint
      
        # Labels to apply to this image. These can be later modified by the setLabels
        # method.
        # Corresponds to the JSON property `labels`
        # @return [Hash<String,String>]
        attr_accessor :labels
      
        # Integer license codes indicating which licenses are attached to this image.
        # Corresponds to the JSON property `licenseCodes`
        # @return [Array<Fixnum>]
        attr_accessor :license_codes
      
        # Any applicable license URI.
        # Corresponds to the JSON property `licenses`
        # @return [Array<String>]
        attr_accessor :licenses
      
        # Name of the resource; provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # The parameters of the raw disk image.
        # Corresponds to the JSON property `rawDisk`
        # @return [Google::Apis::ComputeAlpha::Image::RawDisk]
        attr_accessor :raw_disk
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource's resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # Initial State for shielded instance, these are public keys which are safe to
        # store in public
        # Corresponds to the JSON property `shieldedInstanceInitialState`
        # @return [Google::Apis::ComputeAlpha::InitialStateConfig]
        attr_accessor :shielded_instance_initial_state
      
        # URL of the source disk used to create this image. This can be a full or valid
        # partial URL. You must provide either this property or the rawDisk.source
        # property but not both to create an image. For example, the following are valid
        # values:
        # - https://www.googleapis.com/compute/v1/projects/project/zones/zone/disks/disk
        # - projects/project/zones/zone/disks/disk
        # - zones/zone/disks/disk
        # Corresponds to the JSON property `sourceDisk`
        # @return [String]
        attr_accessor :source_disk
      
        # The customer-supplied encryption key of the source disk. Required if the
        # source disk is protected by a customer-supplied encryption key.
        # Corresponds to the JSON property `sourceDiskEncryptionKey`
        # @return [Google::Apis::ComputeAlpha::CustomerEncryptionKey]
        attr_accessor :source_disk_encryption_key
      
        # [Output Only] The ID value of the disk used to create this image. This value
        # may be used to determine whether the image was taken from the current or a
        # previous instance of a given disk name.
        # Corresponds to the JSON property `sourceDiskId`
        # @return [String]
        attr_accessor :source_disk_id
      
        # URL of the source image used to create this image.
        # In order to create an image, you must provide the full or partial URL of one
        # of the following:
        # - The selfLink URL
        # - This property
        # - The rawDisk.source URL
        # - The sourceDisk URL
        # Corresponds to the JSON property `sourceImage`
        # @return [String]
        attr_accessor :source_image
      
        # The customer-supplied encryption key of the source image. Required if the
        # source image is protected by a customer-supplied encryption key.
        # Corresponds to the JSON property `sourceImageEncryptionKey`
        # @return [Google::Apis::ComputeAlpha::CustomerEncryptionKey]
        attr_accessor :source_image_encryption_key
      
        # [Output Only] The ID value of the image used to create this image. This value
        # may be used to determine whether the image was taken from the current or a
        # previous instance of a given image name.
        # Corresponds to the JSON property `sourceImageId`
        # @return [String]
        attr_accessor :source_image_id
      
        # URL of the source snapshot used to create this image.
        # In order to create an image, you must provide the full or partial URL of one
        # of the following:
        # - The selfLink URL
        # - This property
        # - The sourceImage URL
        # - The rawDisk.source URL
        # - The sourceDisk URL
        # Corresponds to the JSON property `sourceSnapshot`
        # @return [String]
        attr_accessor :source_snapshot
      
        # The customer-supplied encryption key of the source snapshot. Required if the
        # source snapshot is protected by a customer-supplied encryption key.
        # Corresponds to the JSON property `sourceSnapshotEncryptionKey`
        # @return [Google::Apis::ComputeAlpha::CustomerEncryptionKey]
        attr_accessor :source_snapshot_encryption_key
      
        # [Output Only] The ID value of the snapshot used to create this image. This
        # value may be used to determine whether the snapshot was taken from the current
        # or a previous instance of a given snapshot name.
        # Corresponds to the JSON property `sourceSnapshotId`
        # @return [String]
        attr_accessor :source_snapshot_id
      
        # The type of the image used to create this disk. The default and only value is
        # RAW
        # Corresponds to the JSON property `sourceType`
        # @return [String]
        attr_accessor :source_type
      
        # [Output Only] The status of the image. An image can be used to create other
        # resources, such as instances, only after the image has been successfully
        # created and the status is set to READY. Possible values are FAILED, PENDING,
        # or READY.
        # Corresponds to the JSON property `status`
        # @return [String]
        attr_accessor :status
      
        # Cloud Storage bucket storage location of the image (regional or multi-regional)
        # .
        # Corresponds to the JSON property `storageLocations`
        # @return [Array<String>]
        attr_accessor :storage_locations
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @archive_size_bytes = args[:archive_size_bytes] if args.key?(:archive_size_bytes)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @deprecated = args[:deprecated] if args.key?(:deprecated)
          @description = args[:description] if args.key?(:description)
          @disk_size_gb = args[:disk_size_gb] if args.key?(:disk_size_gb)
          @family = args[:family] if args.key?(:family)
          @guest_os_features = args[:guest_os_features] if args.key?(:guest_os_features)
          @id = args[:id] if args.key?(:id)
          @image_encryption_key = args[:image_encryption_key] if args.key?(:image_encryption_key)
          @kind = args[:kind] if args.key?(:kind)
          @label_fingerprint = args[:label_fingerprint] if args.key?(:label_fingerprint)
          @labels = args[:labels] if args.key?(:labels)
          @license_codes = args[:license_codes] if args.key?(:license_codes)
          @licenses = args[:licenses] if args.key?(:licenses)
          @name = args[:name] if args.key?(:name)
          @raw_disk = args[:raw_disk] if args.key?(:raw_disk)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @shielded_instance_initial_state = args[:shielded_instance_initial_state] if args.key?(:shielded_instance_initial_state)
          @source_disk = args[:source_disk] if args.key?(:source_disk)
          @source_disk_encryption_key = args[:source_disk_encryption_key] if args.key?(:source_disk_encryption_key)
          @source_disk_id = args[:source_disk_id] if args.key?(:source_disk_id)
          @source_image = args[:source_image] if args.key?(:source_image)
          @source_image_encryption_key = args[:source_image_encryption_key] if args.key?(:source_image_encryption_key)
          @source_image_id = args[:source_image_id] if args.key?(:source_image_id)
          @source_snapshot = args[:source_snapshot] if args.key?(:source_snapshot)
          @source_snapshot_encryption_key = args[:source_snapshot_encryption_key] if args.key?(:source_snapshot_encryption_key)
          @source_snapshot_id = args[:source_snapshot_id] if args.key?(:source_snapshot_id)
          @source_type = args[:source_type] if args.key?(:source_type)
          @status = args[:status] if args.key?(:status)
          @storage_locations = args[:storage_locations] if args.key?(:storage_locations)
        end
        
        # The parameters of the raw disk image.
        class RawDisk
          include Google::Apis::Core::Hashable
        
          # The format used to encode and transmit the block device, which should be TAR.
          # This is just a container and transmission format and not a runtime format.
          # Provided by the client when the disk image is created.
          # Corresponds to the JSON property `containerType`
          # @return [String]
          attr_accessor :container_type
        
          # [Deprecated] This field is deprecated. An optional SHA1 checksum of the disk
          # image before unpackaging provided by the client when the disk image is created.
          # Corresponds to the JSON property `sha1Checksum`
          # @return [String]
          attr_accessor :sha1_checksum
        
          # The full Google Cloud Storage URL where the disk image is stored. You must
          # provide either this property or the sourceDisk property but not both.
          # Corresponds to the JSON property `source`
          # @return [String]
          attr_accessor :source
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @container_type = args[:container_type] if args.key?(:container_type)
            @sha1_checksum = args[:sha1_checksum] if args.key?(:sha1_checksum)
            @source = args[:source] if args.key?(:source)
          end
        end
      end
      
      # Contains a list of images.
      class ImageList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of Image resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::Image>]
        attr_accessor :items
      
        # Type of resource.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::ImageList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::ImageList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Represents a InPlaceSnapshot resource.
      # You can use in-place snapshots to create disk rollback points quickly.. (==
      # resource_for `$api_version`.inPlaceSnapshots ==)
      class InPlaceSnapshot
        include Google::Apis::Core::Hashable
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # [Output Only] Size of the source disk, specified in GB.
        # Corresponds to the JSON property `diskSizeGb`
        # @return [Fixnum]
        attr_accessor :disk_size_gb
      
        # Specifies to create an application consistent in-place snapshot by informing
        # the OS to prepare for the snapshot process. Currently only supported on
        # Windows instances using the Volume Shadow Copy Service (VSS).
        # Corresponds to the JSON property `guestFlush`
        # @return [Boolean]
        attr_accessor :guest_flush
        alias_method :guest_flush?, :guest_flush
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] Type of the resource. Always compute#inPlaceSnapshot for
        # InPlaceSnapshot resources.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # A fingerprint for the labels being applied to this InPlaceSnapshot, which is
        # essentially a hash of the labels set used for optimistic locking. The
        # fingerprint is initially generated by Compute Engine and changes after every
        # request to modify or update labels. You must always provide an up-to-date
        # fingerprint hash in order to update or change labels, otherwise the request
        # will fail with error 412 conditionNotMet.
        # To see the latest fingerprint, make a get() request to retrieve a
        # InPlaceSnapshot.
        # Corresponds to the JSON property `labelFingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :label_fingerprint
      
        # Labels to apply to this InPlaceSnapshot. These can be later modified by the
        # setLabels method. Label values may be empty.
        # Corresponds to the JSON property `labels`
        # @return [Hash<String,String>]
        attr_accessor :labels
      
        # Name of the resource; provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # [Output Only] URL of the region where the in-place snapshot resides. You must
        # specify this field as part of the HTTP request URL. It is not settable as a
        # field in the request body.
        # Corresponds to the JSON property `region`
        # @return [String]
        attr_accessor :region
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource's resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # URL of the source disk used to create this in-place snapshot. Note that the
        # source disk must be in the same zone/region as the in-place snapshot to be
        # created. This can be a full or valid partial URL. For example, the following
        # are valid values:
        # - https://www.googleapis.com/compute/v1/projects/project/zones/zone/disks/disk
        # - projects/project/zones/zone/disks/disk
        # - zones/zone/disks/disk
        # Corresponds to the JSON property `sourceDisk`
        # @return [String]
        attr_accessor :source_disk
      
        # [Output Only] The ID value of the disk used to create this InPlaceSnapshot.
        # This value may be used to determine whether the InPlaceSnapshot was taken from
        # the current or a previous instance of a given disk name.
        # Corresponds to the JSON property `sourceDiskId`
        # @return [String]
        attr_accessor :source_disk_id
      
        # [Output Only] The status of the inPlaceSnapshot. This can be CREATING,
        # DELETING, FAILED, or READY.
        # Corresponds to the JSON property `status`
        # @return [String]
        attr_accessor :status
      
        # [Output Only] URL of the zone where the in-place snapshot resides. You must
        # specify this field as part of the HTTP request URL. It is not settable as a
        # field in the request body.
        # Corresponds to the JSON property `zone`
        # @return [String]
        attr_accessor :zone
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @disk_size_gb = args[:disk_size_gb] if args.key?(:disk_size_gb)
          @guest_flush = args[:guest_flush] if args.key?(:guest_flush)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @label_fingerprint = args[:label_fingerprint] if args.key?(:label_fingerprint)
          @labels = args[:labels] if args.key?(:labels)
          @name = args[:name] if args.key?(:name)
          @region = args[:region] if args.key?(:region)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @source_disk = args[:source_disk] if args.key?(:source_disk)
          @source_disk_id = args[:source_disk_id] if args.key?(:source_disk_id)
          @status = args[:status] if args.key?(:status)
          @zone = args[:zone] if args.key?(:zone)
        end
      end
      
      # Contains a list of InPlaceSnapshot resources.
      class InPlaceSnapshotList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of InPlaceSnapshot resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::InPlaceSnapshot>]
        attr_accessor :items
      
        # Type of resource.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::InPlaceSnapshotList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::InPlaceSnapshotList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Initial State for shielded instance, these are public keys which are safe to
      # store in public
      class InitialStateConfig
        include Google::Apis::Core::Hashable
      
        # The Key Database (db).
        # Corresponds to the JSON property `dbs`
        # @return [Array<Google::Apis::ComputeAlpha::FileContentBuffer>]
        attr_accessor :dbs
      
        # The forbidden key database (dbx).
        # Corresponds to the JSON property `dbxs`
        # @return [Array<Google::Apis::ComputeAlpha::FileContentBuffer>]
        attr_accessor :dbxs
      
        # The Key Exchange Key (KEK).
        # Corresponds to the JSON property `keks`
        # @return [Array<Google::Apis::ComputeAlpha::FileContentBuffer>]
        attr_accessor :keks
      
        # The Platform Key (PK).
        # Corresponds to the JSON property `pk`
        # @return [Google::Apis::ComputeAlpha::FileContentBuffer]
        attr_accessor :pk
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @dbs = args[:dbs] if args.key?(:dbs)
          @dbxs = args[:dbxs] if args.key?(:dbxs)
          @keks = args[:keks] if args.key?(:keks)
          @pk = args[:pk] if args.key?(:pk)
        end
      end
      
      # Represents an Instance resource.
      # An instance is a virtual machine that is hosted on Google Cloud Platform. For
      # more information, read Virtual Machine Instances. (== resource_for `$
      # api_version`.instances ==)
      class Instance
        include Google::Apis::Core::Hashable
      
        # Specifies options for controlling advanced machine features. Options that
        # would traditionally be configured in a BIOS belong here. Features that require
        # operating system support may have corresponding entries in the GuestOsFeatures
        # of an Image (e.g., whether or not the OS in the Image supports nested
        # virtualization being enabled or disabled).
        # Corresponds to the JSON property `advancedMachineFeatures`
        # @return [Google::Apis::ComputeAlpha::AdvancedMachineFeatures]
        attr_accessor :advanced_machine_features
      
        # Allows this instance to send and receive packets with non-matching destination
        # or source IPs. This is required if you plan to use this instance to forward
        # routes. For more information, see Enabling IP Forwarding.
        # Corresponds to the JSON property `canIpForward`
        # @return [Boolean]
        attr_accessor :can_ip_forward
        alias_method :can_ip_forward?, :can_ip_forward
      
        # A set of Confidential Instance options.
        # Corresponds to the JSON property `confidentialInstanceConfig`
        # @return [Google::Apis::ComputeAlpha::ConfidentialInstanceConfig]
        attr_accessor :confidential_instance_config
      
        # [Output Only] The CPU platform used by this instance.
        # Corresponds to the JSON property `cpuPlatform`
        # @return [String]
        attr_accessor :cpu_platform
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # Whether the resource should be protected against deletion.
        # Corresponds to the JSON property `deletionProtection`
        # @return [Boolean]
        attr_accessor :deletion_protection
        alias_method :deletion_protection?, :deletion_protection
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # Array of disks associated with this instance. Persistent disks must be created
        # before you can assign them.
        # Corresponds to the JSON property `disks`
        # @return [Array<Google::Apis::ComputeAlpha::AttachedDisk>]
        attr_accessor :disks
      
        # A set of Display Device options
        # Corresponds to the JSON property `displayDevice`
        # @return [Google::Apis::ComputeAlpha::DisplayDevice]
        attr_accessor :display_device
      
        # Specifies whether the disks restored from source snapshots or source machine
        # image should erase Windows specific VSS signature.
        # Corresponds to the JSON property `eraseWindowsVssSignature`
        # @return [Boolean]
        attr_accessor :erase_windows_vss_signature
        alias_method :erase_windows_vss_signature?, :erase_windows_vss_signature
      
        # Specifies a fingerprint for this resource, which is essentially a hash of the
        # instance's contents and used for optimistic locking. The fingerprint is
        # initially generated by Compute Engine and changes after every request to
        # modify or update the instance. You must always provide an up-to-date
        # fingerprint hash in order to update the instance.
        # To see the latest fingerprint, make get() request to the instance.
        # Corresponds to the JSON property `fingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :fingerprint
      
        # A list of the type and count of accelerator cards attached to the instance.
        # Corresponds to the JSON property `guestAccelerators`
        # @return [Array<Google::Apis::ComputeAlpha::AcceleratorConfig>]
        attr_accessor :guest_accelerators
      
        # Specifies the hostname of the instance. The specified hostname must be RFC1035
        # compliant. If hostname is not specified, the default hostname is [
        # INSTANCE_NAME].c.[PROJECT_ID].internal when using the global DNS, and [
        # INSTANCE_NAME].[ZONE].c.[PROJECT_ID].internal when using zonal DNS.
        # Corresponds to the JSON property `hostname`
        # @return [String]
        attr_accessor :hostname
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # Encrypts or decrypts data for an instance with a customer-supplied encryption
        # key.
        # If you are creating a new instance, this field encrypts the local SSD and in-
        # memory contents of the instance using a key that you provide.
        # If you are restarting an instance protected with a customer-supplied
        # encryption key, you must provide the correct key in order to successfully
        # restart the instance.
        # If you do not provide an encryption key when creating the instance, then the
        # local SSD and in-memory contents will be encrypted using an automatically
        # generated key and you do not need to provide a key to start the instance later.
        # Instance templates do not store customer-supplied encryption keys, so you
        # cannot use your own keys to encrypt local SSDs and in-memory content in a
        # managed instance group.
        # Corresponds to the JSON property `instanceEncryptionKey`
        # @return [Google::Apis::ComputeAlpha::CustomerEncryptionKey]
        attr_accessor :instance_encryption_key
      
        # [Output Only] Type of the resource. Always compute#instance for instances.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # A fingerprint for this request, which is essentially a hash of the label's
        # contents and used for optimistic locking. The fingerprint is initially
        # generated by Compute Engine and changes after every request to modify or
        # update labels. You must always provide an up-to-date fingerprint hash in order
        # to update or change labels.
        # To see the latest fingerprint, make get() request to the instance.
        # Corresponds to the JSON property `labelFingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :label_fingerprint
      
        # Labels to apply to this instance. These can be later modified by the setLabels
        # method.
        # Corresponds to the JSON property `labels`
        # @return [Hash<String,String>]
        attr_accessor :labels
      
        # [Output Only] Last start timestamp in RFC3339 text format.
        # Corresponds to the JSON property `lastStartTimestamp`
        # @return [String]
        attr_accessor :last_start_timestamp
      
        # [Output Only] Last stop timestamp in RFC3339 text format.
        # Corresponds to the JSON property `lastStopTimestamp`
        # @return [String]
        attr_accessor :last_stop_timestamp
      
        # [Output Only] Last suspended timestamp in RFC3339 text format.
        # Corresponds to the JSON property `lastSuspendedTimestamp`
        # @return [String]
        attr_accessor :last_suspended_timestamp
      
        # Full or partial URL of the machine type resource to use for this instance, in
        # the format: zones/zone/machineTypes/machine-type. This is provided by the
        # client when the instance is created. For example, the following is a valid
        # partial url to a predefined machine type:
        # zones/us-central1-f/machineTypes/n1-standard-1
        # To create a custom machine type, provide a URL to a machine type in the
        # following format, where CPUS is 1 or an even number up to 32 (2, 4, 6, ... 24,
        # etc), and MEMORY is the total memory for this instance. Memory must be a
        # multiple of 256 MB and must be supplied in MB (e.g. 5 GB of memory is 5120 MB):
        # zones/zone/machineTypes/custom-CPUS-MEMORY
        # For example: zones/us-central1-f/machineTypes/custom-4-5120
        # For a full list of restrictions, read the Specifications for custom machine
        # types.
        # Corresponds to the JSON property `machineType`
        # @return [String]
        attr_accessor :machine_type
      
        # A metadata key/value entry.
        # Corresponds to the JSON property `metadata`
        # @return [Google::Apis::ComputeAlpha::Metadata]
        attr_accessor :metadata
      
        # Specifies a minimum CPU platform for the VM instance. Applicable values are
        # the friendly names of CPU platforms, such as minCpuPlatform: "Intel Haswell"
        # or minCpuPlatform: "Intel Sandy Bridge".
        # Corresponds to the JSON property `minCpuPlatform`
        # @return [String]
        attr_accessor :min_cpu_platform
      
        # The name of the resource, provided by the client when initially creating the
        # resource. The resource name must be 1-63 characters long, and comply with
        # RFC1035. Specifically, the name must be 1-63 characters long and match the
        # regular expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the first
        # character must be a lowercase letter, and all following characters must be a
        # dash, lowercase letter, or digit, except the last character, which cannot be a
        # dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # An array of network configurations for this instance. These specify how
        # interfaces are configured to interact with other network services, such as
        # connecting to the internet. Multiple interfaces are supported per instance.
        # Corresponds to the JSON property `networkInterfaces`
        # @return [Array<Google::Apis::ComputeAlpha::NetworkInterface>]
        attr_accessor :network_interfaces
      
        # 
        # Corresponds to the JSON property `networkPerformanceConfig`
        # @return [Google::Apis::ComputeAlpha::NetworkPerformanceConfig]
        attr_accessor :network_performance_config
      
        # PostKeyRevocationActionType of the instance.
        # Corresponds to the JSON property `postKeyRevocationActionType`
        # @return [String]
        attr_accessor :post_key_revocation_action_type
      
        # Total amount of preserved state for SUSPENDED instances. Read-only in the api.
        # Corresponds to the JSON property `preservedStateSizeGb`
        # @return [Fixnum]
        attr_accessor :preserved_state_size_gb
      
        # The private IPv6 google access type for the VM. If not specified, use
        # INHERIT_FROM_SUBNETWORK as default.
        # Corresponds to the JSON property `privateIpv6GoogleAccess`
        # @return [String]
        attr_accessor :private_ipv6_google_access
      
        # Specifies the reservations that this instance can consume from.
        # Corresponds to the JSON property `reservationAffinity`
        # @return [Google::Apis::ComputeAlpha::ReservationAffinity]
        attr_accessor :reservation_affinity
      
        # Resource policies applied to this instance.
        # Corresponds to the JSON property `resourcePolicies`
        # @return [Array<String>]
        attr_accessor :resource_policies
      
        # [Output Only] Reserved for future use.
        # Corresponds to the JSON property `satisfiesPzs`
        # @return [Boolean]
        attr_accessor :satisfies_pzs
        alias_method :satisfies_pzs?, :satisfies_pzs
      
        # Sets the scheduling options for an Instance. NextID: 13
        # Corresponds to the JSON property `scheduling`
        # @return [Google::Apis::ComputeAlpha::Scheduling]
        attr_accessor :scheduling
      
        # Secure labels to apply to this instance. These can be later modified by the
        # update method. Maximum number of secure labels allowed is 300.
        # Corresponds to the JSON property `secureLabels`
        # @return [Array<String>]
        attr_accessor :secure_labels
      
        # Secure tags to apply to this instance. These can be later modified by the
        # update method. Maximum number of secure tags allowed is 300.
        # Corresponds to the JSON property `secureTags`
        # @return [Array<String>]
        attr_accessor :secure_tags
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # A list of service accounts, with their specified scopes, authorized for this
        # instance. Only one service account per VM instance is supported.
        # Service accounts generate access tokens that can be accessed through the
        # metadata server and used to authenticate applications on the instance. See
        # Service Accounts for more information.
        # Corresponds to the JSON property `serviceAccounts`
        # @return [Array<Google::Apis::ComputeAlpha::ServiceAccount>]
        attr_accessor :service_accounts
      
        # A set of Shielded Instance options.
        # Corresponds to the JSON property `shieldedInstanceConfig`
        # @return [Google::Apis::ComputeAlpha::ShieldedInstanceConfig]
        attr_accessor :shielded_instance_config
      
        # The policy describes the baseline against which Instance boot integrity is
        # measured.
        # Corresponds to the JSON property `shieldedInstanceIntegrityPolicy`
        # @return [Google::Apis::ComputeAlpha::ShieldedInstanceIntegrityPolicy]
        attr_accessor :shielded_instance_integrity_policy
      
        # A set of Shielded VM options.
        # Corresponds to the JSON property `shieldedVmConfig`
        # @return [Google::Apis::ComputeAlpha::ShieldedVmConfig]
        attr_accessor :shielded_vm_config
      
        # The policy describes the baseline against which VM instance boot integrity is
        # measured.
        # Corresponds to the JSON property `shieldedVmIntegrityPolicy`
        # @return [Google::Apis::ComputeAlpha::ShieldedVmIntegrityPolicy]
        attr_accessor :shielded_vm_integrity_policy
      
        # Source machine image
        # Corresponds to the JSON property `sourceMachineImage`
        # @return [String]
        attr_accessor :source_machine_image
      
        # Source GMI encryption key when creating an instance from GMI.
        # Corresponds to the JSON property `sourceMachineImageEncryptionKey`
        # @return [Google::Apis::ComputeAlpha::CustomerEncryptionKey]
        attr_accessor :source_machine_image_encryption_key
      
        # [Output Only] Whether a VM has been restricted for start because Compute
        # Engine has detected suspicious activity.
        # Corresponds to the JSON property `startRestricted`
        # @return [Boolean]
        attr_accessor :start_restricted
        alias_method :start_restricted?, :start_restricted
      
        # [Output Only] The status of the instance. One of the following values:
        # PROVISIONING, STAGING, RUNNING, STOPPING, SUSPENDING, SUSPENDED, REPAIRING,
        # and TERMINATED. For more information about the status of the instance, see
        # Instance life cycle.
        # Corresponds to the JSON property `status`
        # @return [String]
        attr_accessor :status
      
        # [Output Only] An optional, human-readable explanation of the status.
        # Corresponds to the JSON property `statusMessage`
        # @return [String]
        attr_accessor :status_message
      
        # A set of instance tags.
        # Corresponds to the JSON property `tags`
        # @return [Google::Apis::ComputeAlpha::Tags]
        attr_accessor :tags
      
        # Upcoming Maintenance notification information.
        # Corresponds to the JSON property `upcomingMaintenance`
        # @return [Google::Apis::ComputeAlpha::UpcomingMaintenance]
        attr_accessor :upcoming_maintenance
      
        # [Output Only] URL of the zone where the instance resides. You must specify
        # this field as part of the HTTP request URL. It is not settable as a field in
        # the request body.
        # Corresponds to the JSON property `zone`
        # @return [String]
        attr_accessor :zone
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @advanced_machine_features = args[:advanced_machine_features] if args.key?(:advanced_machine_features)
          @can_ip_forward = args[:can_ip_forward] if args.key?(:can_ip_forward)
          @confidential_instance_config = args[:confidential_instance_config] if args.key?(:confidential_instance_config)
          @cpu_platform = args[:cpu_platform] if args.key?(:cpu_platform)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @deletion_protection = args[:deletion_protection] if args.key?(:deletion_protection)
          @description = args[:description] if args.key?(:description)
          @disks = args[:disks] if args.key?(:disks)
          @display_device = args[:display_device] if args.key?(:display_device)
          @erase_windows_vss_signature = args[:erase_windows_vss_signature] if args.key?(:erase_windows_vss_signature)
          @fingerprint = args[:fingerprint] if args.key?(:fingerprint)
          @guest_accelerators = args[:guest_accelerators] if args.key?(:guest_accelerators)
          @hostname = args[:hostname] if args.key?(:hostname)
          @id = args[:id] if args.key?(:id)
          @instance_encryption_key = args[:instance_encryption_key] if args.key?(:instance_encryption_key)
          @kind = args[:kind] if args.key?(:kind)
          @label_fingerprint = args[:label_fingerprint] if args.key?(:label_fingerprint)
          @labels = args[:labels] if args.key?(:labels)
          @last_start_timestamp = args[:last_start_timestamp] if args.key?(:last_start_timestamp)
          @last_stop_timestamp = args[:last_stop_timestamp] if args.key?(:last_stop_timestamp)
          @last_suspended_timestamp = args[:last_suspended_timestamp] if args.key?(:last_suspended_timestamp)
          @machine_type = args[:machine_type] if args.key?(:machine_type)
          @metadata = args[:metadata] if args.key?(:metadata)
          @min_cpu_platform = args[:min_cpu_platform] if args.key?(:min_cpu_platform)
          @name = args[:name] if args.key?(:name)
          @network_interfaces = args[:network_interfaces] if args.key?(:network_interfaces)
          @network_performance_config = args[:network_performance_config] if args.key?(:network_performance_config)
          @post_key_revocation_action_type = args[:post_key_revocation_action_type] if args.key?(:post_key_revocation_action_type)
          @preserved_state_size_gb = args[:preserved_state_size_gb] if args.key?(:preserved_state_size_gb)
          @private_ipv6_google_access = args[:private_ipv6_google_access] if args.key?(:private_ipv6_google_access)
          @reservation_affinity = args[:reservation_affinity] if args.key?(:reservation_affinity)
          @resource_policies = args[:resource_policies] if args.key?(:resource_policies)
          @satisfies_pzs = args[:satisfies_pzs] if args.key?(:satisfies_pzs)
          @scheduling = args[:scheduling] if args.key?(:scheduling)
          @secure_labels = args[:secure_labels] if args.key?(:secure_labels)
          @secure_tags = args[:secure_tags] if args.key?(:secure_tags)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @service_accounts = args[:service_accounts] if args.key?(:service_accounts)
          @shielded_instance_config = args[:shielded_instance_config] if args.key?(:shielded_instance_config)
          @shielded_instance_integrity_policy = args[:shielded_instance_integrity_policy] if args.key?(:shielded_instance_integrity_policy)
          @shielded_vm_config = args[:shielded_vm_config] if args.key?(:shielded_vm_config)
          @shielded_vm_integrity_policy = args[:shielded_vm_integrity_policy] if args.key?(:shielded_vm_integrity_policy)
          @source_machine_image = args[:source_machine_image] if args.key?(:source_machine_image)
          @source_machine_image_encryption_key = args[:source_machine_image_encryption_key] if args.key?(:source_machine_image_encryption_key)
          @start_restricted = args[:start_restricted] if args.key?(:start_restricted)
          @status = args[:status] if args.key?(:status)
          @status_message = args[:status_message] if args.key?(:status_message)
          @tags = args[:tags] if args.key?(:tags)
          @upcoming_maintenance = args[:upcoming_maintenance] if args.key?(:upcoming_maintenance)
          @zone = args[:zone] if args.key?(:zone)
        end
      end
      
      # 
      class InstanceAggregatedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # An object that contains a list of instances scoped by zone.
        # Corresponds to the JSON property `items`
        # @return [Hash<String,Google::Apis::ComputeAlpha::InstancesScopedList>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#instanceAggregatedList for
        # aggregated lists of Instance resources.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Unreachable resources.
        # Corresponds to the JSON property `unreachables`
        # @return [Array<String>]
        attr_accessor :unreachables
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::InstanceAggregatedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @unreachables = args[:unreachables] if args.key?(:unreachables)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::InstanceAggregatedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Represents an Instance Group resource.
      # Instance Groups can be used to configure a target for load balancing.
      # Instance groups can either be managed or unmanaged.
      # To create  managed instance groups, use the instanceGroupManager or
      # regionInstanceGroupManager resource instead.
      # Use zonal unmanaged instance groups if you need to apply load balancing to
      # groups of heterogeneous instances or if you need to manage the instances
      # yourself. You cannot create regional unmanaged instance groups.
      # For more information, read Instance groups.
      # (== resource_for `$api_version`.instanceGroups ==) (== resource_for `$
      # api_version`.regionInstanceGroups ==)
      class InstanceGroup
        include Google::Apis::Core::Hashable
      
        # [Output Only] The creation timestamp for this instance group in RFC3339 text
        # format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # [Output Only] The fingerprint of the named ports. The system uses this
        # fingerprint to detect conflicts when multiple users change the named ports
        # concurrently.
        # Corresponds to the JSON property `fingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :fingerprint
      
        # [Output Only] A unique identifier for this instance group, generated by the
        # server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] The resource type, which is always compute#instanceGroup for
        # instance groups.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # The name of the instance group. The name must be 1-63 characters long, and
        # comply with RFC1035.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # Assigns a name to a port number. For example: `name: "http", port: 80`
        # This allows the system to reference ports by the assigned name instead of a
        # port number. Named ports can also contain multiple ports. For example: [`name:
        # "http", port: 80`,`name: "http", port: 8080`]
        # Named ports apply to all instances in this instance group.
        # Corresponds to the JSON property `namedPorts`
        # @return [Array<Google::Apis::ComputeAlpha::NamedPort>]
        attr_accessor :named_ports
      
        # [Output Only] The URL of the network to which all instances in the instance
        # group belong. If your instance has multiple network interfaces, then the
        # network and subnetwork fields only refer to the network and subnet used by
        # your primary interface (nic0).
        # Corresponds to the JSON property `network`
        # @return [String]
        attr_accessor :network
      
        # [Output Only] The URL of the region where the instance group is located (for
        # regional resources).
        # Corresponds to the JSON property `region`
        # @return [String]
        attr_accessor :region
      
        # [Output Only] The URL for this instance group. The server generates this URL.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # [Output Only] The total number of instances in the instance group.
        # Corresponds to the JSON property `size`
        # @return [Fixnum]
        attr_accessor :size
      
        # [Output Only] The URL of the subnetwork to which all instances in the instance
        # group belong. If your instance has multiple network interfaces, then the
        # network and subnetwork fields only refer to the network and subnet used by
        # your primary interface (nic0).
        # Corresponds to the JSON property `subnetwork`
        # @return [String]
        attr_accessor :subnetwork
      
        # [Output Only] The URL of the zone where the instance group is located (for
        # zonal resources).
        # Corresponds to the JSON property `zone`
        # @return [String]
        attr_accessor :zone
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @fingerprint = args[:fingerprint] if args.key?(:fingerprint)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @name = args[:name] if args.key?(:name)
          @named_ports = args[:named_ports] if args.key?(:named_ports)
          @network = args[:network] if args.key?(:network)
          @region = args[:region] if args.key?(:region)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @size = args[:size] if args.key?(:size)
          @subnetwork = args[:subnetwork] if args.key?(:subnetwork)
          @zone = args[:zone] if args.key?(:zone)
        end
      end
      
      # 
      class InstanceGroupAggregatedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of InstanceGroupsScopedList resources.
        # Corresponds to the JSON property `items`
        # @return [Hash<String,Google::Apis::ComputeAlpha::InstanceGroupsScopedList>]
        attr_accessor :items
      
        # [Output Only] The resource type, which is always compute#
        # instanceGroupAggregatedList for aggregated lists of instance groups.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Unreachable resources.
        # Corresponds to the JSON property `unreachables`
        # @return [Array<String>]
        attr_accessor :unreachables
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::InstanceGroupAggregatedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @unreachables = args[:unreachables] if args.key?(:unreachables)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::InstanceGroupAggregatedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # A list of InstanceGroup resources.
      class InstanceGroupList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of InstanceGroup resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::InstanceGroup>]
        attr_accessor :items
      
        # [Output Only] The resource type, which is always compute#instanceGroupList for
        # instance group lists.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::InstanceGroupList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::InstanceGroupList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Represents a Managed Instance Group resource.
      # An instance group is a collection of VM instances that you can manage as a
      # single entity. For more information, read Instance groups.
      # For zonal Managed Instance Group, use the instanceGroupManagers resource.
      # For regional Managed Instance Group, use the regionInstanceGroupManagers
      # resource. (== resource_for `$api_version`.instanceGroupManagers ==) (==
      # resource_for `$api_version`.regionInstanceGroupManagers ==)
      class InstanceGroupManager
        include Google::Apis::Core::Hashable
      
        # The autohealing policy for this managed instance group. You can specify only
        # one value.
        # Corresponds to the JSON property `autoHealingPolicies`
        # @return [Array<Google::Apis::ComputeAlpha::InstanceGroupManagerAutoHealingPolicy>]
        attr_accessor :auto_healing_policies
      
        # The base instance name to use for instances in this group. The value must be 1-
        # 58 characters long. Instances are named by appending a hyphen and a random
        # four-character string to the base instance name. The base instance name must
        # comply with RFC1035.
        # Corresponds to the JSON property `baseInstanceName`
        # @return [String]
        attr_accessor :base_instance_name
      
        # [Output Only] The creation timestamp for this managed instance group in
        # RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # [Output Only] The list of instance actions and the number of instances in this
        # managed instance group that are scheduled for each of those actions.
        # Corresponds to the JSON property `currentActions`
        # @return [Google::Apis::ComputeAlpha::InstanceGroupManagerActionsSummary]
        attr_accessor :current_actions
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # Policy specifying the intended distribution of managed instances across zones
        # in a regional managed instance group.
        # Corresponds to the JSON property `distributionPolicy`
        # @return [Google::Apis::ComputeAlpha::DistributionPolicy]
        attr_accessor :distribution_policy
      
        # The action to perform in case of zone failure. Only one value is supported,
        # NO_FAILOVER. The default is NO_FAILOVER.
        # Corresponds to the JSON property `failoverAction`
        # @return [String]
        attr_accessor :failover_action
      
        # Fingerprint of this resource. This field may be used in optimistic locking. It
        # will be ignored when inserting an InstanceGroupManager. An up-to-date
        # fingerprint must be provided in order to update the InstanceGroupManager,
        # otherwise the request will fail with error 412 conditionNotMet.
        # To see the latest fingerprint, make a get() request to retrieve an
        # InstanceGroupManager.
        # Corresponds to the JSON property `fingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :fingerprint
      
        # [Output Only] A unique identifier for this resource type. The server generates
        # this identifier.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] The URL of the Instance Group resource.
        # Corresponds to the JSON property `instanceGroup`
        # @return [String]
        attr_accessor :instance_group
      
        # The URL of the instance template that is specified for this managed instance
        # group. The group uses this template to create all new instances in the managed
        # instance group. The templates for existing instances in the group do not
        # change unless you run recreateInstances, run applyUpdatesToInstances, or set
        # the group's updatePolicy.type to PROACTIVE.
        # Corresponds to the JSON property `instanceTemplate`
        # @return [String]
        attr_accessor :instance_template
      
        # [Output Only] The resource type, which is always compute#instanceGroupManager
        # for managed instance groups.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # The name of the managed instance group. The name must be 1-63 characters long,
        # and comply with RFC1035.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # Named ports configured for the Instance Groups complementary to this Instance
        # Group Manager.
        # Corresponds to the JSON property `namedPorts`
        # @return [Array<Google::Apis::ComputeAlpha::NamedPort>]
        attr_accessor :named_ports
      
        # [Output Only] The URL of the region where the managed instance group resides (
        # for regional resources).
        # Corresponds to the JSON property `region`
        # @return [String]
        attr_accessor :region
      
        # [Output Only] The URL for this managed instance group. The server defines this
        # URL.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # The service account to be used as credentials for all operations performed by
        # the managed instance group on instances. The service accounts needs all
        # permissions required to create and delete instances. By default, the service
        # account `projectNumber`@cloudservices.gserviceaccount.com is used.
        # Corresponds to the JSON property `serviceAccount`
        # @return [String]
        attr_accessor :service_account
      
        # Stateful configuration for this Instanced Group Manager
        # Corresponds to the JSON property `statefulPolicy`
        # @return [Google::Apis::ComputeAlpha::StatefulPolicy]
        attr_accessor :stateful_policy
      
        # [Output Only] The status of this managed instance group.
        # Corresponds to the JSON property `status`
        # @return [Google::Apis::ComputeAlpha::InstanceGroupManagerStatus]
        attr_accessor :status
      
        # The URLs for all TargetPool resources to which instances in the instanceGroup
        # field are added. The target pools automatically apply to all of the instances
        # in the managed instance group.
        # Corresponds to the JSON property `targetPools`
        # @return [Array<String>]
        attr_accessor :target_pools
      
        # The target number of running instances for this managed instance group. You
        # can reduce this number by using the instanceGroupManager deleteInstances or
        # abandonInstances methods. Resizing the group also changes this number.
        # Corresponds to the JSON property `targetSize`
        # @return [Fixnum]
        attr_accessor :target_size
      
        # The update policy for this managed instance group.
        # Corresponds to the JSON property `updatePolicy`
        # @return [Google::Apis::ComputeAlpha::InstanceGroupManagerUpdatePolicy]
        attr_accessor :update_policy
      
        # Specifies the instance templates used by this managed instance group to create
        # instances.
        # Each version is defined by an instanceTemplate and a name. Every version can
        # appear at most once per instance group. This field overrides the top-level
        # instanceTemplate field. Read more about the relationships between these fields.
        # Exactly one version must leave the targetSize field unset. That version will
        # be applied to all remaining instances. For more information, read about canary
        # updates.
        # Corresponds to the JSON property `versions`
        # @return [Array<Google::Apis::ComputeAlpha::InstanceGroupManagerVersion>]
        attr_accessor :versions
      
        # [Output Only] The URL of a zone where the managed instance group is located (
        # for zonal resources).
        # Corresponds to the JSON property `zone`
        # @return [String]
        attr_accessor :zone
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @auto_healing_policies = args[:auto_healing_policies] if args.key?(:auto_healing_policies)
          @base_instance_name = args[:base_instance_name] if args.key?(:base_instance_name)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @current_actions = args[:current_actions] if args.key?(:current_actions)
          @description = args[:description] if args.key?(:description)
          @distribution_policy = args[:distribution_policy] if args.key?(:distribution_policy)
          @failover_action = args[:failover_action] if args.key?(:failover_action)
          @fingerprint = args[:fingerprint] if args.key?(:fingerprint)
          @id = args[:id] if args.key?(:id)
          @instance_group = args[:instance_group] if args.key?(:instance_group)
          @instance_template = args[:instance_template] if args.key?(:instance_template)
          @kind = args[:kind] if args.key?(:kind)
          @name = args[:name] if args.key?(:name)
          @named_ports = args[:named_ports] if args.key?(:named_ports)
          @region = args[:region] if args.key?(:region)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @service_account = args[:service_account] if args.key?(:service_account)
          @stateful_policy = args[:stateful_policy] if args.key?(:stateful_policy)
          @status = args[:status] if args.key?(:status)
          @target_pools = args[:target_pools] if args.key?(:target_pools)
          @target_size = args[:target_size] if args.key?(:target_size)
          @update_policy = args[:update_policy] if args.key?(:update_policy)
          @versions = args[:versions] if args.key?(:versions)
          @zone = args[:zone] if args.key?(:zone)
        end
      end
      
      # 
      class InstanceGroupManagerActionsSummary
        include Google::Apis::Core::Hashable
      
        # [Output Only] The total number of instances in the managed instance group that
        # are scheduled to be abandoned. Abandoning an instance removes it from the
        # managed instance group without deleting it.
        # Corresponds to the JSON property `abandoning`
        # @return [Fixnum]
        attr_accessor :abandoning
      
        # [Output Only] The number of instances in the managed instance group that are
        # scheduled to be created or are currently being created. If the group fails to
        # create any of these instances, it tries again until it creates the instance
        # successfully.
        # If you have disabled creation retries, this field will not be populated;
        # instead, the creatingWithoutRetries field will be populated.
        # Corresponds to the JSON property `creating`
        # @return [Fixnum]
        attr_accessor :creating
      
        # [Output Only] The number of instances that the managed instance group will
        # attempt to create. The group attempts to create each instance only once. If
        # the group fails to create any of these instances, it decreases the group's
        # targetSize value accordingly.
        # Corresponds to the JSON property `creatingWithoutRetries`
        # @return [Fixnum]
        attr_accessor :creating_without_retries
      
        # [Output Only] The number of instances in the managed instance group that are
        # scheduled to be deleted or are currently being deleted.
        # Corresponds to the JSON property `deleting`
        # @return [Fixnum]
        attr_accessor :deleting
      
        # [Output Only] The number of instances in the managed instance group that are
        # running and have no scheduled actions.
        # Corresponds to the JSON property `none`
        # @return [Fixnum]
        attr_accessor :none
      
        # [Output Only] The number of instances in the managed instance group that are
        # scheduled to be recreated or are currently being being recreated. Recreating
        # an instance deletes the existing root persistent disk and creates a new disk
        # from the image that is defined in the instance template.
        # Corresponds to the JSON property `recreating`
        # @return [Fixnum]
        attr_accessor :recreating
      
        # [Output Only] The number of instances in the managed instance group that are
        # being reconfigured with properties that do not require a restart or a recreate
        # action. For example, setting or removing target pools for the instance.
        # Corresponds to the JSON property `refreshing`
        # @return [Fixnum]
        attr_accessor :refreshing
      
        # [Output Only] The number of instances in the managed instance group that are
        # scheduled to be restarted or are currently being restarted.
        # Corresponds to the JSON property `restarting`
        # @return [Fixnum]
        attr_accessor :restarting
      
        # [Output Only] The number of instances in the managed instance group that are
        # being verified. See the managedInstances[].currentAction property in the
        # listManagedInstances method documentation.
        # Corresponds to the JSON property `verifying`
        # @return [Fixnum]
        attr_accessor :verifying
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @abandoning = args[:abandoning] if args.key?(:abandoning)
          @creating = args[:creating] if args.key?(:creating)
          @creating_without_retries = args[:creating_without_retries] if args.key?(:creating_without_retries)
          @deleting = args[:deleting] if args.key?(:deleting)
          @none = args[:none] if args.key?(:none)
          @recreating = args[:recreating] if args.key?(:recreating)
          @refreshing = args[:refreshing] if args.key?(:refreshing)
          @restarting = args[:restarting] if args.key?(:restarting)
          @verifying = args[:verifying] if args.key?(:verifying)
        end
      end
      
      # 
      class InstanceGroupManagerAggregatedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of InstanceGroupManagersScopedList resources.
        # Corresponds to the JSON property `items`
        # @return [Hash<String,Google::Apis::ComputeAlpha::InstanceGroupManagersScopedList>]
        attr_accessor :items
      
        # [Output Only] The resource type, which is always compute#
        # instanceGroupManagerAggregatedList for an aggregated list of managed instance
        # groups.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Unreachable resources.
        # Corresponds to the JSON property `unreachables`
        # @return [Array<String>]
        attr_accessor :unreachables
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::InstanceGroupManagerAggregatedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @unreachables = args[:unreachables] if args.key?(:unreachables)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::InstanceGroupManagerAggregatedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class InstanceGroupManagerAutoHealingPolicy
        include Google::Apis::Core::Hashable
      
        # The URL for the health check that signals autohealing.
        # Corresponds to the JSON property `healthCheck`
        # @return [String]
        attr_accessor :health_check
      
        # The number of seconds that the managed instance group waits before it applies
        # autohealing policies to new instances or recently recreated instances. This
        # initial delay allows instances to initialize and run their startup scripts
        # before the instance group determines that they are UNHEALTHY. This prevents
        # the managed instance group from recreating its instances prematurely. This
        # value must be from range [0, 3600].
        # Corresponds to the JSON property `initialDelaySec`
        # @return [Fixnum]
        attr_accessor :initial_delay_sec
      
        # Encapsulates numeric value that can be either absolute or relative.
        # Corresponds to the JSON property `maxUnavailable`
        # @return [Google::Apis::ComputeAlpha::FixedOrPercent]
        attr_accessor :max_unavailable
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @health_check = args[:health_check] if args.key?(:health_check)
          @initial_delay_sec = args[:initial_delay_sec] if args.key?(:initial_delay_sec)
          @max_unavailable = args[:max_unavailable] if args.key?(:max_unavailable)
        end
      end
      
      # [Output Only] A list of managed instance groups.
      class InstanceGroupManagerList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of InstanceGroupManager resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::InstanceGroupManager>]
        attr_accessor :items
      
        # [Output Only] The resource type, which is always compute#
        # instanceGroupManagerList for a list of managed instance groups.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::InstanceGroupManagerList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::InstanceGroupManagerList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class InstanceGroupManagerStatus
        include Google::Apis::Core::Hashable
      
        # [Output Only] The URL of the Autoscaler that targets this instance group
        # manager.
        # Corresponds to the JSON property `autoscaler`
        # @return [String]
        attr_accessor :autoscaler
      
        # [Output Only] A bit indicating whether the managed instance group is in a
        # stable state. A stable state means that: none of the instances in the managed
        # instance group is currently undergoing any type of change (for example,
        # creation, restart, or deletion); no future changes are scheduled for instances
        # in the managed instance group; and the managed instance group itself is not
        # being modified.
        # Corresponds to the JSON property `isStable`
        # @return [Boolean]
        attr_accessor :is_stable
        alias_method :is_stable?, :is_stable
      
        # [Output Only] Stateful status of the given Instance Group Manager.
        # Corresponds to the JSON property `stateful`
        # @return [Google::Apis::ComputeAlpha::InstanceGroupManagerStatusStateful]
        attr_accessor :stateful
      
        # [Output Only] A status of consistency of Instances' versions with their target
        # version specified by version field on Instance Group Manager.
        # Corresponds to the JSON property `versionTarget`
        # @return [Google::Apis::ComputeAlpha::InstanceGroupManagerStatusVersionTarget]
        attr_accessor :version_target
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @autoscaler = args[:autoscaler] if args.key?(:autoscaler)
          @is_stable = args[:is_stable] if args.key?(:is_stable)
          @stateful = args[:stateful] if args.key?(:stateful)
          @version_target = args[:version_target] if args.key?(:version_target)
        end
      end
      
      # 
      class InstanceGroupManagerStatusStateful
        include Google::Apis::Core::Hashable
      
        # [Output Only] A bit indicating whether the managed instance group has stateful
        # configuration, that is, if you have configured any items in a stateful policy
        # or in per-instance configs. The group might report that it has no stateful
        # config even when there is still some preserved state on a managed instance,
        # for example, if you have deleted all PICs but not yet applied those deletions.
        # Corresponds to the JSON property `hasStatefulConfig`
        # @return [Boolean]
        attr_accessor :has_stateful_config
        alias_method :has_stateful_config?, :has_stateful_config
      
        # [Output Only] A bit indicating whether the managed instance group has stateful
        # configuration, that is, if you have configured any items in a stateful policy
        # or in per-instance configs. The group might report that it has no stateful
        # config even when there is still some preserved state on a managed instance,
        # for example, if you have deleted all PICs but not yet applied those deletions.
        # This field is deprecated in favor of has_stateful_config.
        # Corresponds to the JSON property `isStateful`
        # @return [Boolean]
        attr_accessor :is_stateful
        alias_method :is_stateful?, :is_stateful
      
        # [Output Only] Status of per-instance configs on the instance.
        # Corresponds to the JSON property `perInstanceConfigs`
        # @return [Google::Apis::ComputeAlpha::InstanceGroupManagerStatusStatefulPerInstanceConfigs]
        attr_accessor :per_instance_configs
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @has_stateful_config = args[:has_stateful_config] if args.key?(:has_stateful_config)
          @is_stateful = args[:is_stateful] if args.key?(:is_stateful)
          @per_instance_configs = args[:per_instance_configs] if args.key?(:per_instance_configs)
        end
      end
      
      # 
      class InstanceGroupManagerStatusStatefulPerInstanceConfigs
        include Google::Apis::Core::Hashable
      
        # A bit indicating if all of the group's per-instance configs (listed in the
        # output of a listPerInstanceConfigs API call) have status EFFECTIVE or there
        # are no per-instance-configs.
        # Corresponds to the JSON property `allEffective`
        # @return [Boolean]
        attr_accessor :all_effective
        alias_method :all_effective?, :all_effective
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @all_effective = args[:all_effective] if args.key?(:all_effective)
        end
      end
      
      # 
      class InstanceGroupManagerStatusVersionTarget
        include Google::Apis::Core::Hashable
      
        # [Output Only] A bit indicating whether version target has been reached in this
        # managed instance group, i.e. all instances are in their target version.
        # Instances' target version are specified by version field on Instance Group
        # Manager.
        # Corresponds to the JSON property `isReached`
        # @return [Boolean]
        attr_accessor :is_reached
        alias_method :is_reached?, :is_reached
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @is_reached = args[:is_reached] if args.key?(:is_reached)
        end
      end
      
      # 
      class InstanceGroupManagerUpdatePolicy
        include Google::Apis::Core::Hashable
      
        # The  instance redistribution policy for regional managed instance groups.
        # Valid values are:
        # - PROACTIVE (default): The group attempts to maintain an even distribution of
        # VM instances across zones in the region.
        # - NONE: For non-autoscaled groups, proactive redistribution is disabled.
        # Corresponds to the JSON property `instanceRedistributionType`
        # @return [String]
        attr_accessor :instance_redistribution_type
      
        # Encapsulates numeric value that can be either absolute or relative.
        # Corresponds to the JSON property `maxSurge`
        # @return [Google::Apis::ComputeAlpha::FixedOrPercent]
        attr_accessor :max_surge
      
        # Encapsulates numeric value that can be either absolute or relative.
        # Corresponds to the JSON property `maxUnavailable`
        # @return [Google::Apis::ComputeAlpha::FixedOrPercent]
        attr_accessor :max_unavailable
      
        # Minimum number of seconds to wait for after a newly created instance becomes
        # available. This value must be from range [0, 3600].
        # Corresponds to the JSON property `minReadySec`
        # @return [Fixnum]
        attr_accessor :min_ready_sec
      
        # Minimal action to be taken on an instance. You can specify either RESTART to
        # restart existing instances or REPLACE to delete and create new instances from
        # the target template. If you specify a RESTART, the Updater will attempt to
        # perform that action only. However, if the Updater determines that the minimal
        # action you specify is not enough to perform the update, it might perform a
        # more disruptive action.
        # Corresponds to the JSON property `minimalAction`
        # @return [String]
        attr_accessor :minimal_action
      
        # Most disruptive action that is allowed to be taken on an instance. You can
        # specify either NONE to forbid any actions, REFRESH to allow actions that do
        # not need instance restart, RESTART to allow actions that can be applied
        # without instance replacing or REPLACE to allow all possible actions. If the
        # Updater determines that the minimal update action needed is more disruptive
        # than most disruptive allowed action you specify it will not perform the update
        # at all.
        # Corresponds to the JSON property `mostDisruptiveAllowedAction`
        # @return [String]
        attr_accessor :most_disruptive_allowed_action
      
        # What action should be used to replace instances. See minimal_action.REPLACE
        # Corresponds to the JSON property `replacementMethod`
        # @return [String]
        attr_accessor :replacement_method
      
        # The type of update process. You can specify either PROACTIVE so that the
        # instance group manager proactively executes actions in order to bring
        # instances to their target versions or OPPORTUNISTIC so that no action is
        # proactively executed but the update will be performed as part of other actions
        # (for example, resizes or recreateInstances calls).
        # Corresponds to the JSON property `type`
        # @return [String]
        attr_accessor :type
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @instance_redistribution_type = args[:instance_redistribution_type] if args.key?(:instance_redistribution_type)
          @max_surge = args[:max_surge] if args.key?(:max_surge)
          @max_unavailable = args[:max_unavailable] if args.key?(:max_unavailable)
          @min_ready_sec = args[:min_ready_sec] if args.key?(:min_ready_sec)
          @minimal_action = args[:minimal_action] if args.key?(:minimal_action)
          @most_disruptive_allowed_action = args[:most_disruptive_allowed_action] if args.key?(:most_disruptive_allowed_action)
          @replacement_method = args[:replacement_method] if args.key?(:replacement_method)
          @type = args[:type] if args.key?(:type)
        end
      end
      
      # 
      class InstanceGroupManagerVersion
        include Google::Apis::Core::Hashable
      
        # The URL of the instance template that is specified for this managed instance
        # group. The group uses this template to create new instances in the managed
        # instance group until the `targetSize` for this version is reached. The
        # templates for existing instances in the group do not change unless you run
        # recreateInstances, run applyUpdatesToInstances, or set the group's
        # updatePolicy.type to PROACTIVE; in those cases, existing instances are updated
        # until the `targetSize` for this version is reached.
        # Corresponds to the JSON property `instanceTemplate`
        # @return [String]
        attr_accessor :instance_template
      
        # Name of the version. Unique among all versions in the scope of this managed
        # instance group.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # Tag describing the version. Used to trigger rollout of a target version even
        # if instance_template remains unchanged. Deprecated in favor of 'name'.
        # Corresponds to the JSON property `tag`
        # @return [String]
        attr_accessor :tag
      
        # Encapsulates numeric value that can be either absolute or relative.
        # Corresponds to the JSON property `targetSize`
        # @return [Google::Apis::ComputeAlpha::FixedOrPercent]
        attr_accessor :target_size
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @instance_template = args[:instance_template] if args.key?(:instance_template)
          @name = args[:name] if args.key?(:name)
          @tag = args[:tag] if args.key?(:tag)
          @target_size = args[:target_size] if args.key?(:target_size)
        end
      end
      
      # 
      class InstanceGroupManagersAbandonInstancesRequest
        include Google::Apis::Core::Hashable
      
        # The URLs of one or more instances to abandon. This can be a full URL or a
        # partial URL, such as zones/[ZONE]/instances/[INSTANCE_NAME].
        # Corresponds to the JSON property `instances`
        # @return [Array<String>]
        attr_accessor :instances
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @instances = args[:instances] if args.key?(:instances)
        end
      end
      
      # InstanceGroupManagers.applyUpdatesToInstances
      class InstanceGroupManagersApplyUpdatesRequest
        include Google::Apis::Core::Hashable
      
        # Flag to update all instances instead of specified list of ?instances?. If the
        # flag is set to true then the instances may not be specified in the request.
        # Corresponds to the JSON property `allInstances`
        # @return [Boolean]
        attr_accessor :all_instances
        alias_method :all_instances?, :all_instances
      
        # The list of URLs of one or more instances for which you want to apply updates.
        # Each URL can be a full URL or a partial URL, such as zones/[ZONE]/instances/[
        # INSTANCE_NAME].
        # Corresponds to the JSON property `instances`
        # @return [Array<String>]
        attr_accessor :instances
      
        # The maximal action that should be performed on the instances. By default
        # REPLACE. This field is deprecated, please use most_disruptive_allowed_action.
        # Corresponds to the JSON property `maximalAction`
        # @return [String]
        attr_accessor :maximal_action
      
        # The minimal action that you want to perform on each instance during the update:
        # 
        # - REPLACE: At minimum, delete the instance and create it again.
        # - RESTART: Stop the instance and start it again.
        # - REFRESH: Do not stop the instance.
        # - NONE: Do not disrupt the instance at all.  By default, the minimum action is
        # NONE. If your update requires a more disruptive action than you set with this
        # flag, the necessary action is performed to execute the update.
        # Corresponds to the JSON property `minimalAction`
        # @return [String]
        attr_accessor :minimal_action
      
        # The most disruptive action that you want to perform on each instance during
        # the update:
        # - REPLACE: Delete the instance and create it again.
        # - RESTART: Stop the instance and start it again.
        # - REFRESH: Do not stop the instance.
        # - NONE: Do not disrupt the instance at all.  By default, the most disruptive
        # allowed action is REPLACE. If your update requires a more disruptive action
        # than you set with this flag, the update request will fail.
        # Corresponds to the JSON property `mostDisruptiveAllowedAction`
        # @return [String]
        attr_accessor :most_disruptive_allowed_action
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @all_instances = args[:all_instances] if args.key?(:all_instances)
          @instances = args[:instances] if args.key?(:instances)
          @maximal_action = args[:maximal_action] if args.key?(:maximal_action)
          @minimal_action = args[:minimal_action] if args.key?(:minimal_action)
          @most_disruptive_allowed_action = args[:most_disruptive_allowed_action] if args.key?(:most_disruptive_allowed_action)
        end
      end
      
      # InstanceGroupManagers.createInstances
      class InstanceGroupManagersCreateInstancesRequest
        include Google::Apis::Core::Hashable
      
        # [Required] List of specifications of per-instance configs.
        # Corresponds to the JSON property `instances`
        # @return [Array<Google::Apis::ComputeAlpha::PerInstanceConfig>]
        attr_accessor :instances
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @instances = args[:instances] if args.key?(:instances)
        end
      end
      
      # 
      class InstanceGroupManagersDeleteInstancesRequest
        include Google::Apis::Core::Hashable
      
        # The URLs of one or more instances to delete. This can be a full URL or a
        # partial URL, such as zones/[ZONE]/instances/[INSTANCE_NAME].
        # Corresponds to the JSON property `instances`
        # @return [Array<String>]
        attr_accessor :instances
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @instances = args[:instances] if args.key?(:instances)
        end
      end
      
      # InstanceGroupManagers.deletePerInstanceConfigs
      class InstanceGroupManagersDeletePerInstanceConfigsReq
        include Google::Apis::Core::Hashable
      
        # The list of instance names for which we want to delete per-instance configs on
        # this managed instance group.
        # Corresponds to the JSON property `names`
        # @return [Array<String>]
        attr_accessor :names
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @names = args[:names] if args.key?(:names)
        end
      end
      
      # 
      class InstanceGroupManagersListErrorsResponse
        include Google::Apis::Core::Hashable
      
        # [Output Only] The list of errors of the managed instance group.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::InstanceManagedByIgmError>]
        attr_accessor :items
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @items = args[:items] if args.key?(:items)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
        end
      end
      
      # 
      class InstanceGroupManagersListManagedInstancesResponse
        include Google::Apis::Core::Hashable
      
        # [Output Only] The list of instances in the managed instance group.
        # Corresponds to the JSON property `managedInstances`
        # @return [Array<Google::Apis::ComputeAlpha::ManagedInstance>]
        attr_accessor :managed_instances
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @managed_instances = args[:managed_instances] if args.key?(:managed_instances)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
        end
      end
      
      # 
      class InstanceGroupManagersListPerInstanceConfigsResp
        include Google::Apis::Core::Hashable
      
        # [Output Only] The list of PerInstanceConfig.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::PerInstanceConfig>]
        attr_accessor :items
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::InstanceGroupManagersListPerInstanceConfigsResp::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @items = args[:items] if args.key?(:items)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::InstanceGroupManagersListPerInstanceConfigsResp::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # InstanceGroupManagers.patchPerInstanceConfigs
      class InstanceGroupManagersPatchPerInstanceConfigsReq
        include Google::Apis::Core::Hashable
      
        # The list of per-instance configs to insert or patch on this managed instance
        # group.
        # Corresponds to the JSON property `perInstanceConfigs`
        # @return [Array<Google::Apis::ComputeAlpha::PerInstanceConfig>]
        attr_accessor :per_instance_configs
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @per_instance_configs = args[:per_instance_configs] if args.key?(:per_instance_configs)
        end
      end
      
      # 
      class InstanceGroupManagersRecreateInstancesRequest
        include Google::Apis::Core::Hashable
      
        # The URLs of one or more instances to recreate. This can be a full URL or a
        # partial URL, such as zones/[ZONE]/instances/[INSTANCE_NAME].
        # Corresponds to the JSON property `instances`
        # @return [Array<String>]
        attr_accessor :instances
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @instances = args[:instances] if args.key?(:instances)
        end
      end
      
      # 
      class InstanceGroupManagersResizeAdvancedRequest
        include Google::Apis::Core::Hashable
      
        # If this flag is true, the managed instance group attempts to create all
        # instances initiated by this resize request only once. If there is an error
        # during creation, the managed instance group does not retry create this
        # instance, and we will decrease the targetSize of the request instead. If the
        # flag is false, the group attempts to recreate each instance continuously until
        # it succeeds.
        # This flag matters only in the first attempt of creation of an instance. After
        # an instance is successfully created while this flag is enabled, the instance
        # behaves the same way as all the other instances created with a regular resize
        # request. In particular, if a running instance dies unexpectedly at a later
        # time and needs to be recreated, this mode does not affect the recreation
        # behavior in that scenario.
        # This flag is applicable only to the current resize request. It does not
        # influence other resize requests in any way.
        # You can see which instances is being creating in which mode by calling the get
        # or listManagedInstances API.
        # Corresponds to the JSON property `noCreationRetries`
        # @return [Boolean]
        attr_accessor :no_creation_retries
        alias_method :no_creation_retries?, :no_creation_retries
      
        # The number of running instances that the managed instance group should
        # maintain at any given time. The group automatically adds or removes instances
        # to maintain the number of instances specified by this parameter.
        # Corresponds to the JSON property `targetSize`
        # @return [Fixnum]
        attr_accessor :target_size
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @no_creation_retries = args[:no_creation_retries] if args.key?(:no_creation_retries)
          @target_size = args[:target_size] if args.key?(:target_size)
        end
      end
      
      # 
      class InstanceGroupManagersScopedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] The list of managed instance groups that are contained in the
        # specified project and zone.
        # Corresponds to the JSON property `instanceGroupManagers`
        # @return [Array<Google::Apis::ComputeAlpha::InstanceGroupManager>]
        attr_accessor :instance_group_managers
      
        # [Output Only] The warning that replaces the list of managed instance groups
        # when the list is empty.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::InstanceGroupManagersScopedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @instance_group_managers = args[:instance_group_managers] if args.key?(:instance_group_managers)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] The warning that replaces the list of managed instance groups
        # when the list is empty.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::InstanceGroupManagersScopedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class InstanceGroupManagersSetAutoHealingRequest
        include Google::Apis::Core::Hashable
      
        # 
        # Corresponds to the JSON property `autoHealingPolicies`
        # @return [Array<Google::Apis::ComputeAlpha::InstanceGroupManagerAutoHealingPolicy>]
        attr_accessor :auto_healing_policies
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @auto_healing_policies = args[:auto_healing_policies] if args.key?(:auto_healing_policies)
        end
      end
      
      # 
      class InstanceGroupManagersSetInstanceTemplateRequest
        include Google::Apis::Core::Hashable
      
        # The URL of the instance template that is specified for this managed instance
        # group. The group uses this template to create all new instances in the managed
        # instance group. The templates for existing instances in the group do not
        # change unless you run recreateInstances, run applyUpdatesToInstances, or set
        # the group's updatePolicy.type to PROACTIVE.
        # Corresponds to the JSON property `instanceTemplate`
        # @return [String]
        attr_accessor :instance_template
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @instance_template = args[:instance_template] if args.key?(:instance_template)
        end
      end
      
      # 
      class InstanceGroupManagersSetTargetPoolsRequest
        include Google::Apis::Core::Hashable
      
        # The fingerprint of the target pools information. Use this optional property to
        # prevent conflicts when multiple users change the target pools settings
        # concurrently. Obtain the fingerprint with the instanceGroupManagers.get method.
        # Then, include the fingerprint in your request to ensure that you do not
        # overwrite changes that were applied from another concurrent request.
        # Corresponds to the JSON property `fingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :fingerprint
      
        # The list of target pool URLs that instances in this managed instance group
        # belong to. The managed instance group applies these target pools to all of the
        # instances in the group. Existing instances and new instances in the group all
        # receive these target pool settings.
        # Corresponds to the JSON property `targetPools`
        # @return [Array<String>]
        attr_accessor :target_pools
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @fingerprint = args[:fingerprint] if args.key?(:fingerprint)
          @target_pools = args[:target_pools] if args.key?(:target_pools)
        end
      end
      
      # InstanceGroupManagers.updatePerInstanceConfigs
      class InstanceGroupManagersUpdatePerInstanceConfigsReq
        include Google::Apis::Core::Hashable
      
        # The list of per-instance configs to insert or patch on this managed instance
        # group.
        # Corresponds to the JSON property `perInstanceConfigs`
        # @return [Array<Google::Apis::ComputeAlpha::PerInstanceConfig>]
        attr_accessor :per_instance_configs
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @per_instance_configs = args[:per_instance_configs] if args.key?(:per_instance_configs)
        end
      end
      
      # 
      class InstanceGroupsAddInstancesRequest
        include Google::Apis::Core::Hashable
      
        # The list of instances to add to the instance group.
        # Corresponds to the JSON property `instances`
        # @return [Array<Google::Apis::ComputeAlpha::InstanceReference>]
        attr_accessor :instances
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @instances = args[:instances] if args.key?(:instances)
        end
      end
      
      # 
      class InstanceGroupsListInstances
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of InstanceWithNamedPorts resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::InstanceWithNamedPorts>]
        attr_accessor :items
      
        # [Output Only] The resource type, which is always compute#
        # instanceGroupsListInstances for the list of instances in the specified
        # instance group.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::InstanceGroupsListInstances::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::InstanceGroupsListInstances::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class InstanceGroupsListInstancesRequest
        include Google::Apis::Core::Hashable
      
        # A filter for the state of the instances in the instance group. Valid options
        # are ALL or RUNNING. If you do not specify this parameter the list includes all
        # instances regardless of their state.
        # Corresponds to the JSON property `instanceState`
        # @return [String]
        attr_accessor :instance_state
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @instance_state = args[:instance_state] if args.key?(:instance_state)
        end
      end
      
      # 
      class InstanceGroupsRemoveInstancesRequest
        include Google::Apis::Core::Hashable
      
        # The list of instances to remove from the instance group.
        # Corresponds to the JSON property `instances`
        # @return [Array<Google::Apis::ComputeAlpha::InstanceReference>]
        attr_accessor :instances
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @instances = args[:instances] if args.key?(:instances)
        end
      end
      
      # 
      class InstanceGroupsScopedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] The list of instance groups that are contained in this scope.
        # Corresponds to the JSON property `instanceGroups`
        # @return [Array<Google::Apis::ComputeAlpha::InstanceGroup>]
        attr_accessor :instance_groups
      
        # [Output Only] An informational warning that replaces the list of instance
        # groups when the list is empty.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::InstanceGroupsScopedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @instance_groups = args[:instance_groups] if args.key?(:instance_groups)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] An informational warning that replaces the list of instance
        # groups when the list is empty.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::InstanceGroupsScopedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class InstanceGroupsSetNamedPortsRequest
        include Google::Apis::Core::Hashable
      
        # The fingerprint of the named ports information for this instance group. Use
        # this optional property to prevent conflicts when multiple users change the
        # named ports settings concurrently. Obtain the fingerprint with the
        # instanceGroups.get method. Then, include the fingerprint in your request to
        # ensure that you do not overwrite changes that were applied from another
        # concurrent request. A request with an incorrect fingerprint will fail with
        # error 412 conditionNotMet.
        # Corresponds to the JSON property `fingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :fingerprint
      
        # The list of named ports to set for this instance group.
        # Corresponds to the JSON property `namedPorts`
        # @return [Array<Google::Apis::ComputeAlpha::NamedPort>]
        attr_accessor :named_ports
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @fingerprint = args[:fingerprint] if args.key?(:fingerprint)
          @named_ports = args[:named_ports] if args.key?(:named_ports)
        end
      end
      
      # Contains a list of instances.
      class InstanceList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of Instance resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::Instance>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#instanceList for lists of
        # Instance resources.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::InstanceList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::InstanceList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Contains a list of instance referrers.
      class InstanceListReferrers
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of Reference resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::Reference>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#instanceListReferrers for lists
        # of Instance referrers.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::InstanceListReferrers::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::InstanceListReferrers::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class InstanceManagedByIgmError
        include Google::Apis::Core::Hashable
      
        # [Output Only] Contents of the error.
        # Corresponds to the JSON property `error`
        # @return [Google::Apis::ComputeAlpha::InstanceManagedByIgmErrorManagedInstanceError]
        attr_accessor :error
      
        # [Output Only] Details of the instance action that triggered this error. May be
        # null, if the error was not caused by an action on an instance. This field is
        # optional.
        # Corresponds to the JSON property `instanceActionDetails`
        # @return [Google::Apis::ComputeAlpha::InstanceManagedByIgmErrorInstanceActionDetails]
        attr_accessor :instance_action_details
      
        # [Output Only] The time that this error occurred. This value is in RFC3339 text
        # format.
        # Corresponds to the JSON property `timestamp`
        # @return [String]
        attr_accessor :timestamp
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @error = args[:error] if args.key?(:error)
          @instance_action_details = args[:instance_action_details] if args.key?(:instance_action_details)
          @timestamp = args[:timestamp] if args.key?(:timestamp)
        end
      end
      
      # 
      class InstanceManagedByIgmErrorInstanceActionDetails
        include Google::Apis::Core::Hashable
      
        # [Output Only] Action that managed instance group was executing on the instance
        # when the error occurred. Possible values:
        # Corresponds to the JSON property `action`
        # @return [String]
        attr_accessor :action
      
        # [Output Only] The URL of the instance. The URL can be set even if the instance
        # has not yet been created.
        # Corresponds to the JSON property `instance`
        # @return [String]
        attr_accessor :instance
      
        # [Output Only] Version this instance was created from, or was being created
        # from, but the creation failed. Corresponds to one of the versions that were
        # set on the Instance Group Manager resource at the time this instance was being
        # created.
        # Corresponds to the JSON property `version`
        # @return [Google::Apis::ComputeAlpha::ManagedInstanceVersion]
        attr_accessor :version
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @action = args[:action] if args.key?(:action)
          @instance = args[:instance] if args.key?(:instance)
          @version = args[:version] if args.key?(:version)
        end
      end
      
      # 
      class InstanceManagedByIgmErrorManagedInstanceError
        include Google::Apis::Core::Hashable
      
        # [Output Only] Error code.
        # Corresponds to the JSON property `code`
        # @return [String]
        attr_accessor :code
      
        # [Output Only] Error message.
        # Corresponds to the JSON property `message`
        # @return [String]
        attr_accessor :message
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @code = args[:code] if args.key?(:code)
          @message = args[:message] if args.key?(:message)
        end
      end
      
      # 
      class InstanceMoveRequest
        include Google::Apis::Core::Hashable
      
        # The URL of the destination zone to move the instance. This can be a full or
        # partial URL. For example, the following are all valid URLs to a zone:
        # - https://www.googleapis.com/compute/v1/projects/project/zones/zone
        # - projects/project/zones/zone
        # - zones/zone
        # Corresponds to the JSON property `destinationZone`
        # @return [String]
        attr_accessor :destination_zone
      
        # The URL of the target instance to move. This can be a full or partial URL. For
        # example, the following are all valid URLs to an instance:
        # - https://www.googleapis.com/compute/v1/projects/project/zones/zone/instances/
        # instance
        # - projects/project/zones/zone/instances/instance
        # - zones/zone/instances/instance
        # Corresponds to the JSON property `targetInstance`
        # @return [String]
        attr_accessor :target_instance
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @destination_zone = args[:destination_zone] if args.key?(:destination_zone)
          @target_instance = args[:target_instance] if args.key?(:target_instance)
        end
      end
      
      # 
      class InstanceProperties
        include Google::Apis::Core::Hashable
      
        # Specifies options for controlling advanced machine features. Options that
        # would traditionally be configured in a BIOS belong here. Features that require
        # operating system support may have corresponding entries in the GuestOsFeatures
        # of an Image (e.g., whether or not the OS in the Image supports nested
        # virtualization being enabled or disabled).
        # Corresponds to the JSON property `advancedMachineFeatures`
        # @return [Google::Apis::ComputeAlpha::AdvancedMachineFeatures]
        attr_accessor :advanced_machine_features
      
        # Enables instances created based on these properties to send packets with
        # source IP addresses other than their own and receive packets with destination
        # IP addresses other than their own. If these instances will be used as an IP
        # gateway or it will be set as the next-hop in a Route resource, specify true.
        # If unsure, leave this set to false. See the Enable IP forwarding documentation
        # for more information.
        # Corresponds to the JSON property `canIpForward`
        # @return [Boolean]
        attr_accessor :can_ip_forward
        alias_method :can_ip_forward?, :can_ip_forward
      
        # A set of Confidential Instance options.
        # Corresponds to the JSON property `confidentialInstanceConfig`
        # @return [Google::Apis::ComputeAlpha::ConfidentialInstanceConfig]
        attr_accessor :confidential_instance_config
      
        # An optional text description for the instances that are created from these
        # properties.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # An array of disks that are associated with the instances that are created from
        # these properties.
        # Corresponds to the JSON property `disks`
        # @return [Array<Google::Apis::ComputeAlpha::AttachedDisk>]
        attr_accessor :disks
      
        # A set of Display Device options
        # Corresponds to the JSON property `displayDevice`
        # @return [Google::Apis::ComputeAlpha::DisplayDevice]
        attr_accessor :display_device
      
        # A list of guest accelerator cards' type and count to use for instances created
        # from these properties.
        # Corresponds to the JSON property `guestAccelerators`
        # @return [Array<Google::Apis::ComputeAlpha::AcceleratorConfig>]
        attr_accessor :guest_accelerators
      
        # Labels to apply to instances that are created from these properties.
        # Corresponds to the JSON property `labels`
        # @return [Hash<String,String>]
        attr_accessor :labels
      
        # The machine type to use for instances that are created from these properties.
        # Corresponds to the JSON property `machineType`
        # @return [String]
        attr_accessor :machine_type
      
        # A metadata key/value entry.
        # Corresponds to the JSON property `metadata`
        # @return [Google::Apis::ComputeAlpha::Metadata]
        attr_accessor :metadata
      
        # Minimum cpu/platform to be used by instances. The instance may be scheduled on
        # the specified or newer cpu/platform. Applicable values are the friendly names
        # of CPU platforms, such as minCpuPlatform: "Intel Haswell" or minCpuPlatform: "
        # Intel Sandy Bridge". For more information, read Specifying a Minimum CPU
        # Platform.
        # Corresponds to the JSON property `minCpuPlatform`
        # @return [String]
        attr_accessor :min_cpu_platform
      
        # An array of network access configurations for this interface.
        # Corresponds to the JSON property `networkInterfaces`
        # @return [Array<Google::Apis::ComputeAlpha::NetworkInterface>]
        attr_accessor :network_interfaces
      
        # 
        # Corresponds to the JSON property `networkPerformanceConfig`
        # @return [Google::Apis::ComputeAlpha::NetworkPerformanceConfig]
        attr_accessor :network_performance_config
      
        # PostKeyRevocationActionType of the instance.
        # Corresponds to the JSON property `postKeyRevocationActionType`
        # @return [String]
        attr_accessor :post_key_revocation_action_type
      
        # The private IPv6 google access type for VMs. If not specified, use
        # INHERIT_FROM_SUBNETWORK as default.
        # Corresponds to the JSON property `privateIpv6GoogleAccess`
        # @return [String]
        attr_accessor :private_ipv6_google_access
      
        # Specifies the reservations that this instance can consume from.
        # Corresponds to the JSON property `reservationAffinity`
        # @return [Google::Apis::ComputeAlpha::ReservationAffinity]
        attr_accessor :reservation_affinity
      
        # Resource policies (names, not ULRs) applied to instances created from these
        # properties.
        # Corresponds to the JSON property `resourcePolicies`
        # @return [Array<String>]
        attr_accessor :resource_policies
      
        # Sets the scheduling options for an Instance. NextID: 13
        # Corresponds to the JSON property `scheduling`
        # @return [Google::Apis::ComputeAlpha::Scheduling]
        attr_accessor :scheduling
      
        # A list of service accounts with specified scopes. Access tokens for these
        # service accounts are available to the instances that are created from these
        # properties. Use metadata queries to obtain the access tokens for these
        # instances.
        # Corresponds to the JSON property `serviceAccounts`
        # @return [Array<Google::Apis::ComputeAlpha::ServiceAccount>]
        attr_accessor :service_accounts
      
        # A set of Shielded Instance options.
        # Corresponds to the JSON property `shieldedInstanceConfig`
        # @return [Google::Apis::ComputeAlpha::ShieldedInstanceConfig]
        attr_accessor :shielded_instance_config
      
        # A set of Shielded VM options.
        # Corresponds to the JSON property `shieldedVmConfig`
        # @return [Google::Apis::ComputeAlpha::ShieldedVmConfig]
        attr_accessor :shielded_vm_config
      
        # A set of instance tags.
        # Corresponds to the JSON property `tags`
        # @return [Google::Apis::ComputeAlpha::Tags]
        attr_accessor :tags
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @advanced_machine_features = args[:advanced_machine_features] if args.key?(:advanced_machine_features)
          @can_ip_forward = args[:can_ip_forward] if args.key?(:can_ip_forward)
          @confidential_instance_config = args[:confidential_instance_config] if args.key?(:confidential_instance_config)
          @description = args[:description] if args.key?(:description)
          @disks = args[:disks] if args.key?(:disks)
          @display_device = args[:display_device] if args.key?(:display_device)
          @guest_accelerators = args[:guest_accelerators] if args.key?(:guest_accelerators)
          @labels = args[:labels] if args.key?(:labels)
          @machine_type = args[:machine_type] if args.key?(:machine_type)
          @metadata = args[:metadata] if args.key?(:metadata)
          @min_cpu_platform = args[:min_cpu_platform] if args.key?(:min_cpu_platform)
          @network_interfaces = args[:network_interfaces] if args.key?(:network_interfaces)
          @network_performance_config = args[:network_performance_config] if args.key?(:network_performance_config)
          @post_key_revocation_action_type = args[:post_key_revocation_action_type] if args.key?(:post_key_revocation_action_type)
          @private_ipv6_google_access = args[:private_ipv6_google_access] if args.key?(:private_ipv6_google_access)
          @reservation_affinity = args[:reservation_affinity] if args.key?(:reservation_affinity)
          @resource_policies = args[:resource_policies] if args.key?(:resource_policies)
          @scheduling = args[:scheduling] if args.key?(:scheduling)
          @service_accounts = args[:service_accounts] if args.key?(:service_accounts)
          @shielded_instance_config = args[:shielded_instance_config] if args.key?(:shielded_instance_config)
          @shielded_vm_config = args[:shielded_vm_config] if args.key?(:shielded_vm_config)
          @tags = args[:tags] if args.key?(:tags)
        end
      end
      
      # 
      class InstanceReference
        include Google::Apis::Core::Hashable
      
        # The URL for a specific instance.
        # Corresponds to the JSON property `instance`
        # @return [String]
        attr_accessor :instance
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @instance = args[:instance] if args.key?(:instance)
        end
      end
      
      # Represents an Instance Template resource.
      # You can use instance templates to create VM instances and managed instance
      # groups. For more information, read Instance Templates. (== resource_for `$
      # api_version`.instanceTemplates ==)
      class InstanceTemplate
        include Google::Apis::Core::Hashable
      
        # [Output Only] The creation timestamp for this instance template in RFC3339
        # text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # [Output Only] A unique identifier for this instance template. The server
        # defines this identifier.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] The resource type, which is always compute#instanceTemplate for
        # instance templates.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # Name of the resource; provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # 
        # Corresponds to the JSON property `properties`
        # @return [Google::Apis::ComputeAlpha::InstanceProperties]
        attr_accessor :properties
      
        # [Output Only] The URL for this instance template. The server defines this URL.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # The source instance used to create the template. You can provide this as a
        # partial or full URL to the resource. For example, the following are valid
        # values:
        # - https://www.googleapis.com/compute/v1/projects/project/zones/zone/instances/
        # instance
        # - projects/project/zones/zone/instances/instance
        # Corresponds to the JSON property `sourceInstance`
        # @return [String]
        attr_accessor :source_instance
      
        # A specification of the parameters to use when creating the instance template
        # from a source instance.
        # Corresponds to the JSON property `sourceInstanceParams`
        # @return [Google::Apis::ComputeAlpha::SourceInstanceParams]
        attr_accessor :source_instance_params
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @name = args[:name] if args.key?(:name)
          @properties = args[:properties] if args.key?(:properties)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @source_instance = args[:source_instance] if args.key?(:source_instance)
          @source_instance_params = args[:source_instance_params] if args.key?(:source_instance_params)
        end
      end
      
      # A list of instance templates.
      class InstanceTemplateList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of InstanceTemplate resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::InstanceTemplate>]
        attr_accessor :items
      
        # [Output Only] The resource type, which is always compute#
        # instanceTemplatesListResponse for instance template lists.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::InstanceTemplateList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::InstanceTemplateList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class InstanceWithNamedPorts
        include Google::Apis::Core::Hashable
      
        # [Output Only] The URL of the instance.
        # Corresponds to the JSON property `instance`
        # @return [String]
        attr_accessor :instance
      
        # [Output Only] The named ports that belong to this instance group.
        # Corresponds to the JSON property `namedPorts`
        # @return [Array<Google::Apis::ComputeAlpha::NamedPort>]
        attr_accessor :named_ports
      
        # [Output Only] The status of the instance.
        # Corresponds to the JSON property `status`
        # @return [String]
        attr_accessor :status
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @instance = args[:instance] if args.key?(:instance)
          @named_ports = args[:named_ports] if args.key?(:named_ports)
          @status = args[:status] if args.key?(:status)
        end
      end
      
      # 
      class InstancesAddResourcePoliciesRequest
        include Google::Apis::Core::Hashable
      
        # Resource policies to be added to this instance.
        # Corresponds to the JSON property `resourcePolicies`
        # @return [Array<String>]
        attr_accessor :resource_policies
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @resource_policies = args[:resource_policies] if args.key?(:resource_policies)
        end
      end
      
      # 
      class InstancesGetEffectiveFirewallsResponse
        include Google::Apis::Core::Hashable
      
        # Effective firewalls from firewall policies.
        # Corresponds to the JSON property `firewallPolicys`
        # @return [Array<Google::Apis::ComputeAlpha::InstancesGetEffectiveFirewallsResponseEffectiveFirewallPolicy>]
        attr_accessor :firewall_policys
      
        # Effective firewalls on the instance.
        # Corresponds to the JSON property `firewalls`
        # @return [Array<Google::Apis::ComputeAlpha::Firewall>]
        attr_accessor :firewalls
      
        # Effective firewalls from organization policies.
        # Corresponds to the JSON property `organizationFirewalls`
        # @return [Array<Google::Apis::ComputeAlpha::InstancesGetEffectiveFirewallsResponseOrganizationFirewallPolicy>]
        attr_accessor :organization_firewalls
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @firewall_policys = args[:firewall_policys] if args.key?(:firewall_policys)
          @firewalls = args[:firewalls] if args.key?(:firewalls)
          @organization_firewalls = args[:organization_firewalls] if args.key?(:organization_firewalls)
        end
      end
      
      # 
      class InstancesGetEffectiveFirewallsResponseEffectiveFirewallPolicy
        include Google::Apis::Core::Hashable
      
        # [Output Only] The display name of the firewall policy.
        # Corresponds to the JSON property `displayName`
        # @return [String]
        attr_accessor :display_name
      
        # [Output Only] The name of the firewall policy.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # The rules that apply to the network.
        # Corresponds to the JSON property `rules`
        # @return [Array<Google::Apis::ComputeAlpha::FirewallPolicyRule>]
        attr_accessor :rules
      
        # [Output Only] The type of the firewall policy.
        # Corresponds to the JSON property `type`
        # @return [String]
        attr_accessor :type
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @display_name = args[:display_name] if args.key?(:display_name)
          @name = args[:name] if args.key?(:name)
          @rules = args[:rules] if args.key?(:rules)
          @type = args[:type] if args.key?(:type)
        end
      end
      
      # A pruned SecurityPolicy containing ID and any applicable firewall rules.
      class InstancesGetEffectiveFirewallsResponseOrganizationFirewallPolicy
        include Google::Apis::Core::Hashable
      
        # The unique identifier for the security policy. This identifier is defined by
        # the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # The rules that apply to the network.
        # Corresponds to the JSON property `rules`
        # @return [Array<Google::Apis::ComputeAlpha::SecurityPolicyRule>]
        attr_accessor :rules
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @rules = args[:rules] if args.key?(:rules)
        end
      end
      
      # 
      class InstancesRemoveResourcePoliciesRequest
        include Google::Apis::Core::Hashable
      
        # Resource policies to be removed from this instance.
        # Corresponds to the JSON property `resourcePolicies`
        # @return [Array<String>]
        attr_accessor :resource_policies
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @resource_policies = args[:resource_policies] if args.key?(:resource_policies)
        end
      end
      
      # 
      class InstancesResumeRequest
        include Google::Apis::Core::Hashable
      
        # Array of disks associated with this instance that are protected with a
        # customer-supplied encryption key.
        # In order to resume the instance, the disk url and its corresponding key must
        # be provided.
        # If the disk is not protected with a customer-supplied encryption key it should
        # not be specified.
        # Corresponds to the JSON property `disks`
        # @return [Array<Google::Apis::ComputeAlpha::CustomerEncryptionKeyProtectedDisk>]
        attr_accessor :disks
      
        # Decrypts data associated with an instance that is protected with a customer-
        # supplied encryption key.
        # If the instance you are starting is protected with a customer-supplied
        # encryption key, the correct key must be provided otherwise the instance resume
        # will not succeed.
        # Corresponds to the JSON property `instanceEncryptionKey`
        # @return [Google::Apis::ComputeAlpha::CustomerEncryptionKey]
        attr_accessor :instance_encryption_key
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @disks = args[:disks] if args.key?(:disks)
          @instance_encryption_key = args[:instance_encryption_key] if args.key?(:instance_encryption_key)
        end
      end
      
      # 
      class InstancesScopedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] A list of instances contained in this scope.
        # Corresponds to the JSON property `instances`
        # @return [Array<Google::Apis::ComputeAlpha::Instance>]
        attr_accessor :instances
      
        # [Output Only] Informational warning which replaces the list of instances when
        # the list is empty.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::InstancesScopedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @instances = args[:instances] if args.key?(:instances)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning which replaces the list of instances when
        # the list is empty.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::InstancesScopedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class InstancesSetLabelsRequest
        include Google::Apis::Core::Hashable
      
        # Fingerprint of the previous set of labels for this resource, used to prevent
        # conflicts. Provide the latest fingerprint value when making a request to add
        # or change labels.
        # Corresponds to the JSON property `labelFingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :label_fingerprint
      
        # 
        # Corresponds to the JSON property `labels`
        # @return [Hash<String,String>]
        attr_accessor :labels
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @label_fingerprint = args[:label_fingerprint] if args.key?(:label_fingerprint)
          @labels = args[:labels] if args.key?(:labels)
        end
      end
      
      # 
      class InstancesSetMachineResourcesRequest
        include Google::Apis::Core::Hashable
      
        # A list of the type and count of accelerator cards attached to the instance.
        # Corresponds to the JSON property `guestAccelerators`
        # @return [Array<Google::Apis::ComputeAlpha::AcceleratorConfig>]
        attr_accessor :guest_accelerators
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @guest_accelerators = args[:guest_accelerators] if args.key?(:guest_accelerators)
        end
      end
      
      # 
      class InstancesSetMachineTypeRequest
        include Google::Apis::Core::Hashable
      
        # Full or partial URL of the machine type resource. See Machine Types for a full
        # list of machine types. For example: zones/us-central1-f/machineTypes/n1-
        # standard-1
        # Corresponds to the JSON property `machineType`
        # @return [String]
        attr_accessor :machine_type
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @machine_type = args[:machine_type] if args.key?(:machine_type)
        end
      end
      
      # 
      class InstancesSetMinCpuPlatformRequest
        include Google::Apis::Core::Hashable
      
        # Minimum cpu/platform this instance should be started at.
        # Corresponds to the JSON property `minCpuPlatform`
        # @return [String]
        attr_accessor :min_cpu_platform
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @min_cpu_platform = args[:min_cpu_platform] if args.key?(:min_cpu_platform)
        end
      end
      
      # 
      class InstancesSetNameRequest
        include Google::Apis::Core::Hashable
      
        # The current name of this resource, used to prevent conflicts. Provide the
        # latest name when making a request to change name.
        # Corresponds to the JSON property `currentName`
        # @return [String]
        attr_accessor :current_name
      
        # The name to be applied to the instance. Needs to be RFC 1035 compliant.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @current_name = args[:current_name] if args.key?(:current_name)
          @name = args[:name] if args.key?(:name)
        end
      end
      
      # 
      class InstancesSetServiceAccountRequest
        include Google::Apis::Core::Hashable
      
        # Email address of the service account.
        # Corresponds to the JSON property `email`
        # @return [String]
        attr_accessor :email
      
        # The list of scopes to be made available for this service account.
        # Corresponds to the JSON property `scopes`
        # @return [Array<String>]
        attr_accessor :scopes
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @email = args[:email] if args.key?(:email)
          @scopes = args[:scopes] if args.key?(:scopes)
        end
      end
      
      # 
      class InstancesStartWithEncryptionKeyRequest
        include Google::Apis::Core::Hashable
      
        # Array of disks associated with this instance that are protected with a
        # customer-supplied encryption key.
        # In order to start the instance, the disk url and its corresponding key must be
        # provided.
        # If the disk is not protected with a customer-supplied encryption key it should
        # not be specified.
        # Corresponds to the JSON property `disks`
        # @return [Array<Google::Apis::ComputeAlpha::CustomerEncryptionKeyProtectedDisk>]
        attr_accessor :disks
      
        # Decrypts data associated with an instance that is protected with a customer-
        # supplied encryption key.
        # If the instance you are starting is protected with a customer-supplied
        # encryption key, the correct key must be provided otherwise the instance start
        # will not succeed.
        # Corresponds to the JSON property `instanceEncryptionKey`
        # @return [Google::Apis::ComputeAlpha::CustomerEncryptionKey]
        attr_accessor :instance_encryption_key
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @disks = args[:disks] if args.key?(:disks)
          @instance_encryption_key = args[:instance_encryption_key] if args.key?(:instance_encryption_key)
        end
      end
      
      # Represents a InstantSnapshot resource.
      # You can use instant snapshots to create disk rollback points quickly.. (==
      # resource_for `$api_version`.instantSnapshots ==)
      class InstantSnapshot
        include Google::Apis::Core::Hashable
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # [Output Only] Size of the source disk, specified in GB.
        # Corresponds to the JSON property `diskSizeGb`
        # @return [Fixnum]
        attr_accessor :disk_size_gb
      
        # Whether to attempt an application consistent instant snapshot by informing the
        # OS to prepare for the snapshot process. Currently only supported on Windows
        # instances using the Volume Shadow Copy Service (VSS).
        # Corresponds to the JSON property `guestFlush`
        # @return [Boolean]
        attr_accessor :guest_flush
        alias_method :guest_flush?, :guest_flush
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] Type of the resource. Always compute#instantSnapshot for
        # InstantSnapshot resources.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # A fingerprint for the labels being applied to this InstantSnapshot, which is
        # essentially a hash of the labels set used for optimistic locking. The
        # fingerprint is initially generated by Compute Engine and changes after every
        # request to modify or update labels. You must always provide an up-to-date
        # fingerprint hash in order to update or change labels, otherwise the request
        # will fail with error 412 conditionNotMet.
        # To see the latest fingerprint, make a get() request to retrieve a
        # InstantSnapshot.
        # Corresponds to the JSON property `labelFingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :label_fingerprint
      
        # Labels to apply to this InstantSnapshot. These can be later modified by the
        # setLabels method. Label values may be empty.
        # Corresponds to the JSON property `labels`
        # @return [Hash<String,String>]
        attr_accessor :labels
      
        # Name of the resource; provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # [Output Only] URL of the region where the instant snapshot resides. You must
        # specify this field as part of the HTTP request URL. It is not settable as a
        # field in the request body.
        # Corresponds to the JSON property `region`
        # @return [String]
        attr_accessor :region
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource's resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # URL of the source disk used to create this instant snapshot. Note that the
        # source disk must be in the same zone/region as the instant snapshot to be
        # created. This can be a full or valid partial URL. For example, the following
        # are valid values:
        # - https://www.googleapis.com/compute/v1/projects/project/zones/zone/disks/disk
        # - projects/project/zones/zone/disks/disk
        # - zones/zone/disks/disk
        # Corresponds to the JSON property `sourceDisk`
        # @return [String]
        attr_accessor :source_disk
      
        # [Output Only] The ID value of the disk used to create this InstantSnapshot.
        # This value may be used to determine whether the InstantSnapshot was taken from
        # the current or a previous instance of a given disk name.
        # Corresponds to the JSON property `sourceDiskId`
        # @return [String]
        attr_accessor :source_disk_id
      
        # [Output Only] The status of the instantSnapshot. This can be CREATING,
        # DELETING, FAILED, or READY.
        # Corresponds to the JSON property `status`
        # @return [String]
        attr_accessor :status
      
        # [Output Only] URL of the zone where the instant snapshot resides. You must
        # specify this field as part of the HTTP request URL. It is not settable as a
        # field in the request body.
        # Corresponds to the JSON property `zone`
        # @return [String]
        attr_accessor :zone
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @disk_size_gb = args[:disk_size_gb] if args.key?(:disk_size_gb)
          @guest_flush = args[:guest_flush] if args.key?(:guest_flush)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @label_fingerprint = args[:label_fingerprint] if args.key?(:label_fingerprint)
          @labels = args[:labels] if args.key?(:labels)
          @name = args[:name] if args.key?(:name)
          @region = args[:region] if args.key?(:region)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @source_disk = args[:source_disk] if args.key?(:source_disk)
          @source_disk_id = args[:source_disk_id] if args.key?(:source_disk_id)
          @status = args[:status] if args.key?(:status)
          @zone = args[:zone] if args.key?(:zone)
        end
      end
      
      # 
      class InstantSnapshotExportParams
        include Google::Apis::Core::Hashable
      
        # An optional base instant snapshot that this resource is compared against. If
        # not specified, all blocks of this resource are exported. The base instant
        # snapshot and this resource must be created from the same disk. The base
        # instant snapshot must be created earlier in time than this resource.
        # Corresponds to the JSON property `baseInstantSnapshot`
        # @return [String]
        attr_accessor :base_instant_snapshot
      
        # The name of an existing bucket in Cloud Storage where the changed blocks will
        # be stored. The Google Service Account must have read and write access to this
        # bucket. The bucket has to be in the same region as this resource.
        # Corresponds to the JSON property `bucketName`
        # @return [String]
        attr_accessor :bucket_name
      
        # Encryption key used to encrypt the instant snapshot.
        # Corresponds to the JSON property `encryptionKey`
        # @return [Google::Apis::ComputeAlpha::CustomerEncryptionKey]
        attr_accessor :encryption_key
      
        # Name of the output Bigstore object storing the changed blocks. Object name
        # must be less than 1024 bytes in length.
        # Corresponds to the JSON property `objectName`
        # @return [String]
        attr_accessor :object_name
      
        # The format of the output file.
        # Corresponds to the JSON property `outputType`
        # @return [String]
        attr_accessor :output_type
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @base_instant_snapshot = args[:base_instant_snapshot] if args.key?(:base_instant_snapshot)
          @bucket_name = args[:bucket_name] if args.key?(:bucket_name)
          @encryption_key = args[:encryption_key] if args.key?(:encryption_key)
          @object_name = args[:object_name] if args.key?(:object_name)
          @output_type = args[:output_type] if args.key?(:output_type)
        end
      end
      
      # Contains a list of InstantSnapshot resources.
      class InstantSnapshotList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of InstantSnapshot resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::InstantSnapshot>]
        attr_accessor :items
      
        # Type of resource.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::InstantSnapshotList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::InstantSnapshotList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # HttpRouteRuleMatch criteria for field values that must stay within the
      # specified integer range.
      class Int64RangeMatch
        include Google::Apis::Core::Hashable
      
        # The end of the range (exclusive) in signed long integer format.
        # Corresponds to the JSON property `rangeEnd`
        # @return [Fixnum]
        attr_accessor :range_end
      
        # The start of the range (inclusive) in signed long integer format.
        # Corresponds to the JSON property `rangeStart`
        # @return [Fixnum]
        attr_accessor :range_start
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @range_end = args[:range_end] if args.key?(:range_end)
          @range_start = args[:range_start] if args.key?(:range_start)
        end
      end
      
      # Represents an Interconnect resource.
      # An Interconnect resource is a dedicated connection between the GCP network and
      # your on-premises network. For more information, read the  Dedicated
      # Interconnect Overview. (== resource_for `$api_version`.interconnects ==)
      class Interconnect
        include Google::Apis::Core::Hashable
      
        # Administrative status of the interconnect. When this is set to true, the
        # Interconnect is functional and can carry traffic. When set to false, no
        # packets can be carried over the interconnect and no BGP routes are exchanged
        # over it. By default, the status is set to true.
        # Corresponds to the JSON property `adminEnabled`
        # @return [Boolean]
        attr_accessor :admin_enabled
        alias_method :admin_enabled?, :admin_enabled
      
        # [Output Only] A list of CircuitInfo objects, that describe the individual
        # circuits in this LAG.
        # Corresponds to the JSON property `circuitInfos`
        # @return [Array<Google::Apis::ComputeAlpha::InterconnectCircuitInfo>]
        attr_accessor :circuit_infos
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # Customer name, to put in the Letter of Authorization as the party authorized
        # to request a crossconnect.
        # Corresponds to the JSON property `customerName`
        # @return [String]
        attr_accessor :customer_name
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # [Output Only] A list of outages expected for this Interconnect.
        # Corresponds to the JSON property `expectedOutages`
        # @return [Array<Google::Apis::ComputeAlpha::InterconnectOutageNotification>]
        attr_accessor :expected_outages
      
        # [Output Only] IP address configured on the Google side of the Interconnect
        # link. This can be used only for ping tests.
        # Corresponds to the JSON property `googleIpAddress`
        # @return [String]
        attr_accessor :google_ip_address
      
        # [Output Only] Google reference ID to be used when raising support tickets with
        # Google or otherwise to debug backend connectivity issues.
        # Corresponds to the JSON property `googleReferenceId`
        # @return [String]
        attr_accessor :google_reference_id
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] A list of the URLs of all InterconnectAttachments configured to
        # use this Interconnect.
        # Corresponds to the JSON property `interconnectAttachments`
        # @return [Array<String>]
        attr_accessor :interconnect_attachments
      
        # Type of interconnect, which can take one of the following values:
        # - PARTNER: A partner-managed interconnection shared between customers though a
        # partner.
        # - DEDICATED: A dedicated physical interconnection with the customer. Note that
        # a value IT_PRIVATE has been deprecated in favor of DEDICATED.
        # Corresponds to the JSON property `interconnectType`
        # @return [String]
        attr_accessor :interconnect_type
      
        # [Output Only] Type of the resource. Always compute#interconnect for
        # interconnects.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # A fingerprint for the labels being applied to this Interconnect, which is
        # essentially a hash of the labels set used for optimistic locking. The
        # fingerprint is initially generated by Compute Engine and changes after every
        # request to modify or update labels. You must always provide an up-to-date
        # fingerprint hash in order to update or change labels, otherwise the request
        # will fail with error 412 conditionNotMet.
        # To see the latest fingerprint, make a get() request to retrieve an
        # Interconnect.
        # Corresponds to the JSON property `labelFingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :label_fingerprint
      
        # Labels for this resource. These can only be added or modified by the setLabels
        # method. Each label key/value pair must comply with RFC1035. Label values may
        # be empty.
        # Corresponds to the JSON property `labels`
        # @return [Hash<String,String>]
        attr_accessor :labels
      
        # Type of link requested, which can take one of the following values:
        # - LINK_TYPE_ETHERNET_10G_LR: A 10G Ethernet with LR optics
        # - LINK_TYPE_ETHERNET_100G_LR: A 100G Ethernet with LR optics. Note that this
        # field indicates the speed of each of the links in the bundle, not the speed of
        # the entire bundle.
        # Corresponds to the JSON property `linkType`
        # @return [String]
        attr_accessor :link_type
      
        # URL of the InterconnectLocation object that represents where this connection
        # is to be provisioned.
        # Corresponds to the JSON property `location`
        # @return [String]
        attr_accessor :location
      
        # Name of the resource. Provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # Email address to contact the customer NOC for operations and maintenance
        # notifications regarding this Interconnect. If specified, this will be used for
        # notifications in addition to all other forms described, such as Stackdriver
        # logs alerting and Cloud Notifications.
        # Corresponds to the JSON property `nocContactEmail`
        # @return [String]
        attr_accessor :noc_contact_email
      
        # [Output Only] The current status of this Interconnect's functionality, which
        # can take one of the following values:
        # - OS_ACTIVE: A valid Interconnect, which is turned up and is ready to use.
        # Attachments may be provisioned on this Interconnect.
        # - OS_UNPROVISIONED: An Interconnect that has not completed turnup. No
        # attachments may be provisioned on this Interconnect.
        # - OS_UNDER_MAINTENANCE: An Interconnect that is undergoing internal
        # maintenance. No attachments may be provisioned or updated on this Interconnect.
        # Corresponds to the JSON property `operationalStatus`
        # @return [String]
        attr_accessor :operational_status
      
        # [Output Only] IP address configured on the customer side of the Interconnect
        # link. The customer should configure this IP address during turnup when
        # prompted by Google NOC. This can be used only for ping tests.
        # Corresponds to the JSON property `peerIpAddress`
        # @return [String]
        attr_accessor :peer_ip_address
      
        # [Output Only] Number of links actually provisioned in this interconnect.
        # Corresponds to the JSON property `provisionedLinkCount`
        # @return [Fixnum]
        attr_accessor :provisioned_link_count
      
        # Target number of physical links in the link bundle, as requested by the
        # customer.
        # Corresponds to the JSON property `requestedLinkCount`
        # @return [Fixnum]
        attr_accessor :requested_link_count
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # [Output Only] The current state of Interconnect functionality, which can take
        # one of the following values:
        # - ACTIVE: The Interconnect is valid, turned up and ready to use. Attachments
        # may be provisioned on this Interconnect.
        # - UNPROVISIONED: The Interconnect has not completed turnup. No attachments may
        # be provisioned on this Interconnect.
        # - UNDER_MAINTENANCE: The Interconnect is undergoing internal maintenance. No
        # attachments may be provisioned or updated on this Interconnect.
        # Corresponds to the JSON property `state`
        # @return [String]
        attr_accessor :state
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @admin_enabled = args[:admin_enabled] if args.key?(:admin_enabled)
          @circuit_infos = args[:circuit_infos] if args.key?(:circuit_infos)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @customer_name = args[:customer_name] if args.key?(:customer_name)
          @description = args[:description] if args.key?(:description)
          @expected_outages = args[:expected_outages] if args.key?(:expected_outages)
          @google_ip_address = args[:google_ip_address] if args.key?(:google_ip_address)
          @google_reference_id = args[:google_reference_id] if args.key?(:google_reference_id)
          @id = args[:id] if args.key?(:id)
          @interconnect_attachments = args[:interconnect_attachments] if args.key?(:interconnect_attachments)
          @interconnect_type = args[:interconnect_type] if args.key?(:interconnect_type)
          @kind = args[:kind] if args.key?(:kind)
          @label_fingerprint = args[:label_fingerprint] if args.key?(:label_fingerprint)
          @labels = args[:labels] if args.key?(:labels)
          @link_type = args[:link_type] if args.key?(:link_type)
          @location = args[:location] if args.key?(:location)
          @name = args[:name] if args.key?(:name)
          @noc_contact_email = args[:noc_contact_email] if args.key?(:noc_contact_email)
          @operational_status = args[:operational_status] if args.key?(:operational_status)
          @peer_ip_address = args[:peer_ip_address] if args.key?(:peer_ip_address)
          @provisioned_link_count = args[:provisioned_link_count] if args.key?(:provisioned_link_count)
          @requested_link_count = args[:requested_link_count] if args.key?(:requested_link_count)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @state = args[:state] if args.key?(:state)
        end
      end
      
      # Represents an Interconnect Attachment (VLAN) resource.
      # You can use Interconnect attachments (VLANS) to connect your Virtual Private
      # Cloud networks to your on-premises networks through an Interconnect. For more
      # information, read  Creating VLAN Attachments. (== resource_for `$api_version`.
      # interconnectAttachments ==)
      class InterconnectAttachment
        include Google::Apis::Core::Hashable
      
        # Determines whether this Attachment will carry packets. Not present for
        # PARTNER_PROVIDER.
        # Corresponds to the JSON property `adminEnabled`
        # @return [Boolean]
        attr_accessor :admin_enabled
        alias_method :admin_enabled?, :admin_enabled
      
        # Provisioned bandwidth capacity for the interconnect attachment. For
        # attachments of type DEDICATED, the user can set the bandwidth. For attachments
        # of type PARTNER, the Google Partner that is operating the interconnect must
        # set the bandwidth. Output only for PARTNER type, mutable for PARTNER_PROVIDER
        # and DEDICATED, and can take one of the following values:
        # - BPS_50M: 50 Mbit/s
        # - BPS_100M: 100 Mbit/s
        # - BPS_200M: 200 Mbit/s
        # - BPS_300M: 300 Mbit/s
        # - BPS_400M: 400 Mbit/s
        # - BPS_500M: 500 Mbit/s
        # - BPS_1G: 1 Gbit/s
        # - BPS_2G: 2 Gbit/s
        # - BPS_5G: 5 Gbit/s
        # - BPS_10G: 10 Gbit/s
        # - BPS_20G: 20 Gbit/s
        # - BPS_50G: 50 Gbit/s
        # Corresponds to the JSON property `bandwidth`
        # @return [String]
        attr_accessor :bandwidth
      
        # Up to 16 candidate prefixes that can be used to restrict the allocation of
        # cloudRouterIpAddress and customerRouterIpAddress for this attachment. All
        # prefixes must be within link-local address space (169.254.0.0/16) and must be /
        # 29 or shorter (/28, /27, etc). Google will attempt to select an unused /29
        # from the supplied candidate prefix(es). The request will fail if all possible /
        # 29s are in use on Google's edge. If not supplied, Google will randomly select
        # an unused /29 from all of link-local space.
        # Corresponds to the JSON property `candidateSubnets`
        # @return [Array<String>]
        attr_accessor :candidate_subnets
      
        # [Output Only] IPv4 address + prefix length to be configured on Cloud Router
        # Interface for this interconnect attachment.
        # Corresponds to the JSON property `cloudRouterIpAddress`
        # @return [String]
        attr_accessor :cloud_router_ip_address
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # [Output Only] IPv4 address + prefix length to be configured on the customer
        # router subinterface for this interconnect attachment.
        # Corresponds to the JSON property `customerRouterIpAddress`
        # @return [String]
        attr_accessor :customer_router_ip_address
      
        # [Output Only] Dataplane version for this InterconnectAttachment.
        # Corresponds to the JSON property `dataplaneVersion`
        # @return [Fixnum]
        attr_accessor :dataplane_version
      
        # An optional description of this resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # Desired availability domain for the attachment. Only available for type
        # PARTNER, at creation time, and can take one of the following values:
        # - AVAILABILITY_DOMAIN_ANY
        # - AVAILABILITY_DOMAIN_1
        # - AVAILABILITY_DOMAIN_2 For improved reliability, customers should configure a
        # pair of attachments, one per availability domain. The selected availability
        # domain will be provided to the Partner via the pairing key, so that the
        # provisioned circuit will lie in the specified domain. If not specified, the
        # value will default to AVAILABILITY_DOMAIN_ANY.
        # Corresponds to the JSON property `edgeAvailabilityDomain`
        # @return [String]
        attr_accessor :edge_availability_domain
      
        # Indicates the user-supplied encryption option of this interconnect attachment:
        # - NONE is the default value, which means that the attachment carries
        # unencrypted traffic. VMs can send traffic to, or receive traffic from, this
        # type of attachment.
        # - IPSEC indicates that the attachment carries only traffic encrypted by an
        # IPsec device such as an HA VPN gateway. VMs cannot directly send traffic to,
        # or receive traffic from, such an attachment. To use IPsec over Interconnect,
        # create the attachment using this option.
        # Corresponds to the JSON property `encryption`
        # @return [String]
        attr_accessor :encryption
      
        # [Output Only] Google reference ID, to be used when raising support tickets
        # with Google or otherwise to debug backend connectivity issues. [Deprecated]
        # This field is not used.
        # Corresponds to the JSON property `googleReferenceId`
        # @return [String]
        attr_accessor :google_reference_id
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # URL of the underlying Interconnect object that this attachment's traffic will
        # traverse through.
        # Corresponds to the JSON property `interconnect`
        # @return [String]
        attr_accessor :interconnect
      
        # URL of addresses that have been reserved for the interconnect attachment, Used
        # only for interconnect attachment that has the encryption option as IPSEC. The
        # addresses must be RFC 1918 IP address ranges. When creating HA VPN gateway
        # over the interconnect attachment, if the attachment is configured to use an
        # RFC 1918 IP address, then the VPN gateway?s IP address will be allocated from
        # the IP address range specified here. For example, if the HA VPN gateway?s
        # interface 0 is paired to this interconnect attachment, then an RFC 1918 IP
        # address for the VPN gateway interface 0 will be allocated from the IP address
        # specified for this interconnect attachment. If this field is not specified for
        # interconnect attachment that has encryption option as IPSEC, later on when
        # creating HA VPN gateway on this interconnect attachment, the HA VPN gateway's
        # IP address will be allocated from regional external IP address pool.
        # Corresponds to the JSON property `ipsecInternalAddresses`
        # @return [Array<String>]
        attr_accessor :ipsec_internal_addresses
      
        # [Output Only] Type of the resource. Always compute#interconnectAttachment for
        # interconnect attachments.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # A fingerprint for the labels being applied to this InterconnectAttachment,
        # which is essentially a hash of the labels set used for optimistic locking. The
        # fingerprint is initially generated by Compute Engine and changes after every
        # request to modify or update labels. You must always provide an up-to-date
        # fingerprint hash in order to update or change labels, otherwise the request
        # will fail with error 412 conditionNotMet.
        # To see the latest fingerprint, make a get() request to retrieve an
        # InterconnectAttachment.
        # Corresponds to the JSON property `labelFingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :label_fingerprint
      
        # Labels for this resource. These can only be added or modified by the setLabels
        # method. Each label key/value pair must comply with RFC1035. Label values may
        # be empty.
        # Corresponds to the JSON property `labels`
        # @return [Hash<String,String>]
        attr_accessor :labels
      
        # Maximum Transmission Unit (MTU), in bytes, of packets passing through this
        # interconnect attachment. Only 1440 and 1500 are allowed. If not specified, the
        # value will default to 1440.
        # Corresponds to the JSON property `mtu`
        # @return [Fixnum]
        attr_accessor :mtu
      
        # Name of the resource. Provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # [Output Only] The current status of whether or not this interconnect
        # attachment is functional, which can take one of the following values:
        # - OS_ACTIVE: The attachment has been turned up and is ready to use.
        # - OS_UNPROVISIONED: The attachment is not ready to use yet, because turnup is
        # not complete.
        # Corresponds to the JSON property `operationalStatus`
        # @return [String]
        attr_accessor :operational_status
      
        # [Output only for type PARTNER. Input only for PARTNER_PROVIDER. Not present
        # for DEDICATED]. The opaque identifier of an PARTNER attachment used to
        # initiate provisioning with a selected partner. Of the form "XXXXX/region/
        # domain"
        # Corresponds to the JSON property `pairingKey`
        # @return [String]
        attr_accessor :pairing_key
      
        # Optional BGP ASN for the router supplied by a Layer 3 Partner if they
        # configured BGP on behalf of the customer. Output only for PARTNER type, input
        # only for PARTNER_PROVIDER, not available for DEDICATED.
        # Corresponds to the JSON property `partnerAsn`
        # @return [Fixnum]
        attr_accessor :partner_asn
      
        # Informational metadata about Partner attachments from Partners to display to
        # customers. These fields are propagated from PARTNER_PROVIDER attachments to
        # their corresponding PARTNER attachments.
        # Corresponds to the JSON property `partnerMetadata`
        # @return [Google::Apis::ComputeAlpha::InterconnectAttachmentPartnerMetadata]
        attr_accessor :partner_metadata
      
        # Information for an interconnect attachment when this belongs to an
        # interconnect of type DEDICATED.
        # Corresponds to the JSON property `privateInterconnectInfo`
        # @return [Google::Apis::ComputeAlpha::InterconnectAttachmentPrivateInfo]
        attr_accessor :private_interconnect_info
      
        # [Output Only] URL of the region where the regional interconnect attachment
        # resides. You must specify this field as part of the HTTP request URL. It is
        # not settable as a field in the request body.
        # Corresponds to the JSON property `region`
        # @return [String]
        attr_accessor :region
      
        # URL of the Cloud Router to be used for dynamic routing. This router must be in
        # the same region as this InterconnectAttachment. The InterconnectAttachment
        # will automatically connect the Interconnect to the network & region within
        # which the Cloud Router is configured.
        # Corresponds to the JSON property `router`
        # @return [String]
        attr_accessor :router
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # [Output Only] The current state of this attachment's functionality. Enum
        # values ACTIVE and UNPROVISIONED are shared by DEDICATED/PRIVATE, PARTNER, and
        # PARTNER_PROVIDER interconnect attachments, while enum values PENDING_PARTNER,
        # PARTNER_REQUEST_RECEIVED, and PENDING_CUSTOMER are used for only PARTNER and
        # PARTNER_PROVIDER interconnect attachments. This state can take one of the
        # following values:
        # - ACTIVE: The attachment has been turned up and is ready to use.
        # - UNPROVISIONED: The attachment is not ready to use yet, because turnup is not
        # complete.
        # - PENDING_PARTNER: A newly-created PARTNER attachment that has not yet been
        # configured on the Partner side.
        # - PARTNER_REQUEST_RECEIVED: A PARTNER attachment is in the process of
        # provisioning after a PARTNER_PROVIDER attachment was created that references
        # it.
        # - PENDING_CUSTOMER: A PARTNER or PARTNER_PROVIDER attachment that is waiting
        # for a customer to activate it.
        # - DEFUNCT: The attachment was deleted externally and is no longer functional.
        # This could be because the associated Interconnect was removed, or because the
        # other side of a Partner attachment was deleted.
        # Corresponds to the JSON property `state`
        # @return [String]
        attr_accessor :state
      
        # The type of interconnect attachment this is, which can take one of the
        # following values:
        # - DEDICATED: an attachment to a Dedicated Interconnect.
        # - PARTNER: an attachment to a Partner Interconnect, created by the customer.
        # - PARTNER_PROVIDER: an attachment to a Partner Interconnect, created by the
        # partner.
        # Corresponds to the JSON property `type`
        # @return [String]
        attr_accessor :type
      
        # The IEEE 802.1Q VLAN tag for this attachment, in the range 2-4094. Only
        # specified at creation time.
        # Corresponds to the JSON property `vlanTag8021q`
        # @return [Fixnum]
        attr_accessor :vlan_tag8021q
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @admin_enabled = args[:admin_enabled] if args.key?(:admin_enabled)
          @bandwidth = args[:bandwidth] if args.key?(:bandwidth)
          @candidate_subnets = args[:candidate_subnets] if args.key?(:candidate_subnets)
          @cloud_router_ip_address = args[:cloud_router_ip_address] if args.key?(:cloud_router_ip_address)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @customer_router_ip_address = args[:customer_router_ip_address] if args.key?(:customer_router_ip_address)
          @dataplane_version = args[:dataplane_version] if args.key?(:dataplane_version)
          @description = args[:description] if args.key?(:description)
          @edge_availability_domain = args[:edge_availability_domain] if args.key?(:edge_availability_domain)
          @encryption = args[:encryption] if args.key?(:encryption)
          @google_reference_id = args[:google_reference_id] if args.key?(:google_reference_id)
          @id = args[:id] if args.key?(:id)
          @interconnect = args[:interconnect] if args.key?(:interconnect)
          @ipsec_internal_addresses = args[:ipsec_internal_addresses] if args.key?(:ipsec_internal_addresses)
          @kind = args[:kind] if args.key?(:kind)
          @label_fingerprint = args[:label_fingerprint] if args.key?(:label_fingerprint)
          @labels = args[:labels] if args.key?(:labels)
          @mtu = args[:mtu] if args.key?(:mtu)
          @name = args[:name] if args.key?(:name)
          @operational_status = args[:operational_status] if args.key?(:operational_status)
          @pairing_key = args[:pairing_key] if args.key?(:pairing_key)
          @partner_asn = args[:partner_asn] if args.key?(:partner_asn)
          @partner_metadata = args[:partner_metadata] if args.key?(:partner_metadata)
          @private_interconnect_info = args[:private_interconnect_info] if args.key?(:private_interconnect_info)
          @region = args[:region] if args.key?(:region)
          @router = args[:router] if args.key?(:router)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @state = args[:state] if args.key?(:state)
          @type = args[:type] if args.key?(:type)
          @vlan_tag8021q = args[:vlan_tag8021q] if args.key?(:vlan_tag8021q)
        end
      end
      
      # 
      class InterconnectAttachmentAggregatedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of InterconnectAttachmentsScopedList resources.
        # Corresponds to the JSON property `items`
        # @return [Hash<String,Google::Apis::ComputeAlpha::InterconnectAttachmentsScopedList>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#
        # interconnectAttachmentAggregatedList for aggregated lists of interconnect
        # attachments.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Unreachable resources.
        # Corresponds to the JSON property `unreachables`
        # @return [Array<String>]
        attr_accessor :unreachables
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::InterconnectAttachmentAggregatedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @unreachables = args[:unreachables] if args.key?(:unreachables)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::InterconnectAttachmentAggregatedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Response to the list request, and contains a list of interconnect attachments.
      class InterconnectAttachmentList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of InterconnectAttachment resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::InterconnectAttachment>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#interconnectAttachmentList for
        # lists of interconnect attachments.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::InterconnectAttachmentList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::InterconnectAttachmentList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Informational metadata about Partner attachments from Partners to display to
      # customers. These fields are propagated from PARTNER_PROVIDER attachments to
      # their corresponding PARTNER attachments.
      class InterconnectAttachmentPartnerMetadata
        include Google::Apis::Core::Hashable
      
        # Plain text name of the Interconnect this attachment is connected to, as
        # displayed in the Partner's portal. For instance "Chicago 1". This value may be
        # validated to match approved Partner values.
        # Corresponds to the JSON property `interconnectName`
        # @return [String]
        attr_accessor :interconnect_name
      
        # Plain text name of the Partner providing this attachment. This value may be
        # validated to match approved Partner values.
        # Corresponds to the JSON property `partnerName`
        # @return [String]
        attr_accessor :partner_name
      
        # URL of the Partner's portal for this Attachment. Partners may customise this
        # to be a deep link to the specific resource on the Partner portal. This value
        # may be validated to match approved Partner values.
        # Corresponds to the JSON property `portalUrl`
        # @return [String]
        attr_accessor :portal_url
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @interconnect_name = args[:interconnect_name] if args.key?(:interconnect_name)
          @partner_name = args[:partner_name] if args.key?(:partner_name)
          @portal_url = args[:portal_url] if args.key?(:portal_url)
        end
      end
      
      # Information for an interconnect attachment when this belongs to an
      # interconnect of type DEDICATED.
      class InterconnectAttachmentPrivateInfo
        include Google::Apis::Core::Hashable
      
        # [Output Only] 802.1q encapsulation tag to be used for traffic between Google
        # and the customer, going to and from this network and region.
        # Corresponds to the JSON property `tag8021q`
        # @return [Fixnum]
        attr_accessor :tag8021q
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @tag8021q = args[:tag8021q] if args.key?(:tag8021q)
        end
      end
      
      # 
      class InterconnectAttachmentsScopedList
        include Google::Apis::Core::Hashable
      
        # A list of interconnect attachments contained in this scope.
        # Corresponds to the JSON property `interconnectAttachments`
        # @return [Array<Google::Apis::ComputeAlpha::InterconnectAttachment>]
        attr_accessor :interconnect_attachments
      
        # Informational warning which replaces the list of addresses when the list is
        # empty.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::InterconnectAttachmentsScopedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @interconnect_attachments = args[:interconnect_attachments] if args.key?(:interconnect_attachments)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # Informational warning which replaces the list of addresses when the list is
        # empty.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::InterconnectAttachmentsScopedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Describes a single physical circuit between the Customer and Google.
      # CircuitInfo objects are created by Google, so all fields are output only.
      class InterconnectCircuitInfo
        include Google::Apis::Core::Hashable
      
        # Customer-side demarc ID for this circuit.
        # Corresponds to the JSON property `customerDemarcId`
        # @return [String]
        attr_accessor :customer_demarc_id
      
        # Google-assigned unique ID for this circuit. Assigned at circuit turn-up.
        # Corresponds to the JSON property `googleCircuitId`
        # @return [String]
        attr_accessor :google_circuit_id
      
        # Google-side demarc ID for this circuit. Assigned at circuit turn-up and
        # provided by Google to the customer in the LOA.
        # Corresponds to the JSON property `googleDemarcId`
        # @return [String]
        attr_accessor :google_demarc_id
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @customer_demarc_id = args[:customer_demarc_id] if args.key?(:customer_demarc_id)
          @google_circuit_id = args[:google_circuit_id] if args.key?(:google_circuit_id)
          @google_demarc_id = args[:google_demarc_id] if args.key?(:google_demarc_id)
        end
      end
      
      # Diagnostics information about interconnect, contains detailed and current
      # technical information about Google's side of the connection.
      class InterconnectDiagnostics
        include Google::Apis::Core::Hashable
      
        # A list of InterconnectDiagnostics.ARPEntry objects, describing individual
        # neighbors currently seen by the Google router in the ARP cache for the
        # Interconnect. This will be empty when the Interconnect is not bundled.
        # Corresponds to the JSON property `arpCaches`
        # @return [Array<Google::Apis::ComputeAlpha::InterconnectDiagnosticsArpEntry>]
        attr_accessor :arp_caches
      
        # A list of InterconnectDiagnostics.LinkStatus objects, describing the status
        # for each link on the Interconnect.
        # Corresponds to the JSON property `links`
        # @return [Array<Google::Apis::ComputeAlpha::InterconnectDiagnosticsLinkStatus>]
        attr_accessor :links
      
        # The MAC address of the Interconnect's bundle interface.
        # Corresponds to the JSON property `macAddress`
        # @return [String]
        attr_accessor :mac_address
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @arp_caches = args[:arp_caches] if args.key?(:arp_caches)
          @links = args[:links] if args.key?(:links)
          @mac_address = args[:mac_address] if args.key?(:mac_address)
        end
      end
      
      # Describing the ARP neighbor entries seen on this link
      class InterconnectDiagnosticsArpEntry
        include Google::Apis::Core::Hashable
      
        # The IP address of this ARP neighbor.
        # Corresponds to the JSON property `ipAddress`
        # @return [String]
        attr_accessor :ip_address
      
        # The MAC address of this ARP neighbor.
        # Corresponds to the JSON property `macAddress`
        # @return [String]
        attr_accessor :mac_address
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @ip_address = args[:ip_address] if args.key?(:ip_address)
          @mac_address = args[:mac_address] if args.key?(:mac_address)
        end
      end
      
      # 
      class InterconnectDiagnosticsLinkLacpStatus
        include Google::Apis::Core::Hashable
      
        # System ID of the port on Google's side of the LACP exchange.
        # Corresponds to the JSON property `googleSystemId`
        # @return [String]
        attr_accessor :google_system_id
      
        # System ID of the port on the neighbor's side of the LACP exchange.
        # Corresponds to the JSON property `neighborSystemId`
        # @return [String]
        attr_accessor :neighbor_system_id
      
        # The state of a LACP link, which can take one of the following values:
        # - ACTIVE: The link is configured and active within the bundle.
        # - DETACHED: The link is not configured within the bundle. This means that the
        # rest of the object should be empty.
        # Corresponds to the JSON property `state`
        # @return [String]
        attr_accessor :state
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @google_system_id = args[:google_system_id] if args.key?(:google_system_id)
          @neighbor_system_id = args[:neighbor_system_id] if args.key?(:neighbor_system_id)
          @state = args[:state] if args.key?(:state)
        end
      end
      
      # 
      class InterconnectDiagnosticsLinkOpticalPower
        include Google::Apis::Core::Hashable
      
        # The status of the current value when compared to the warning and alarm levels
        # for the receiving or transmitting transceiver. Possible states include:
        # - OK: The value has not crossed a warning threshold.
        # - LOW_WARNING: The value has crossed below the low warning threshold.
        # - HIGH_WARNING: The value has crossed above the high warning threshold.
        # - LOW_ALARM: The value has crossed below the low alarm threshold.
        # - HIGH_ALARM: The value has crossed above the high alarm threshold.
        # Corresponds to the JSON property `state`
        # @return [String]
        attr_accessor :state
      
        # Value of the current receiving or transmitting optical power, read in dBm.
        # Take a known good optical value, give it a 10% margin and trigger warnings
        # relative to that value. In general, a -7dBm warning and a -11dBm alarm are
        # good optical value estimates for most links.
        # Corresponds to the JSON property `value`
        # @return [Float]
        attr_accessor :value
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @state = args[:state] if args.key?(:state)
          @value = args[:value] if args.key?(:value)
        end
      end
      
      # 
      class InterconnectDiagnosticsLinkStatus
        include Google::Apis::Core::Hashable
      
        # A list of InterconnectDiagnostics.ARPEntry objects, describing the ARP
        # neighbor entries seen on this link. This will be empty if the link is bundled
        # Corresponds to the JSON property `arpCaches`
        # @return [Array<Google::Apis::ComputeAlpha::InterconnectDiagnosticsArpEntry>]
        attr_accessor :arp_caches
      
        # The unique ID for this link assigned during turn up by Google.
        # Corresponds to the JSON property `circuitId`
        # @return [String]
        attr_accessor :circuit_id
      
        # The Demarc address assigned by Google and provided in the LoA.
        # Corresponds to the JSON property `googleDemarc`
        # @return [String]
        attr_accessor :google_demarc
      
        # 
        # Corresponds to the JSON property `lacpStatus`
        # @return [Google::Apis::ComputeAlpha::InterconnectDiagnosticsLinkLacpStatus]
        attr_accessor :lacp_status
      
        # An InterconnectDiagnostics.LinkOpticalPower object, describing the current
        # value and status of the received light level.
        # Corresponds to the JSON property `receivingOpticalPower`
        # @return [Google::Apis::ComputeAlpha::InterconnectDiagnosticsLinkOpticalPower]
        attr_accessor :receiving_optical_power
      
        # An InterconnectDiagnostics.LinkOpticalPower object, describing the current
        # value and status of the transmitted light level.
        # Corresponds to the JSON property `transmittingOpticalPower`
        # @return [Google::Apis::ComputeAlpha::InterconnectDiagnosticsLinkOpticalPower]
        attr_accessor :transmitting_optical_power
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @arp_caches = args[:arp_caches] if args.key?(:arp_caches)
          @circuit_id = args[:circuit_id] if args.key?(:circuit_id)
          @google_demarc = args[:google_demarc] if args.key?(:google_demarc)
          @lacp_status = args[:lacp_status] if args.key?(:lacp_status)
          @receiving_optical_power = args[:receiving_optical_power] if args.key?(:receiving_optical_power)
          @transmitting_optical_power = args[:transmitting_optical_power] if args.key?(:transmitting_optical_power)
        end
      end
      
      # Response to the list request, and contains a list of interconnects.
      class InterconnectList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of Interconnect resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::Interconnect>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#interconnectList for lists of
        # interconnects.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::InterconnectList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::InterconnectList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Represents an Interconnect Attachment (VLAN) Location resource.
      # You can use this resource to find location details about an Interconnect
      # attachment (VLAN). For more information about interconnect attachments, read
      # Creating VLAN Attachments.
      class InterconnectLocation
        include Google::Apis::Core::Hashable
      
        # [Output Only] The postal address of the Point of Presence, each line in the
        # address is separated by a newline character.
        # Corresponds to the JSON property `address`
        # @return [String]
        attr_accessor :address
      
        # [Output Only] Availability zone for this InterconnectLocation. Within a
        # metropolitan area (metro), maintenance will not be simultaneously scheduled in
        # more than one availability zone. Example: "zone1" or "zone2".
        # Corresponds to the JSON property `availabilityZone`
        # @return [String]
        attr_accessor :availability_zone
      
        # [Output Only] Metropolitan area designator that indicates which city an
        # interconnect is located. For example: "Chicago, IL", "Amsterdam, Netherlands".
        # Corresponds to the JSON property `city`
        # @return [String]
        attr_accessor :city
      
        # [Output Only] Continent for this location, which can take one of the following
        # values:
        # - AFRICA
        # - ASIA_PAC
        # - EUROPE
        # - NORTH_AMERICA
        # - SOUTH_AMERICA
        # Corresponds to the JSON property `continent`
        # @return [String]
        attr_accessor :continent
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # [Output Only] An optional description of the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # [Output Only] The name of the provider for this facility (e.g., EQUINIX).
        # Corresponds to the JSON property `facilityProvider`
        # @return [String]
        attr_accessor :facility_provider
      
        # [Output Only] A provider-assigned Identifier for this facility (e.g., Ashburn-
        # DC1).
        # Corresponds to the JSON property `facilityProviderFacilityId`
        # @return [String]
        attr_accessor :facility_provider_facility_id
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] Type of the resource. Always compute#interconnectLocation for
        # interconnect locations.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] Name of the resource.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # [Output Only] The peeringdb identifier for this facility (corresponding with a
        # netfac type in peeringdb).
        # Corresponds to the JSON property `peeringdbFacilityId`
        # @return [String]
        attr_accessor :peeringdb_facility_id
      
        # [Output Only] A list of InterconnectLocation.RegionInfo objects, that describe
        # parameters pertaining to the relation between this InterconnectLocation and
        # various Google Cloud regions.
        # Corresponds to the JSON property `regionInfos`
        # @return [Array<Google::Apis::ComputeAlpha::InterconnectLocationRegionInfo>]
        attr_accessor :region_infos
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # [Output Only] The status of this InterconnectLocation, which can take one of
        # the following values:
        # - CLOSED: The InterconnectLocation is closed and is unavailable for
        # provisioning new Interconnects.
        # - AVAILABLE: The InterconnectLocation is available for provisioning new
        # Interconnects.
        # Corresponds to the JSON property `status`
        # @return [String]
        attr_accessor :status
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @address = args[:address] if args.key?(:address)
          @availability_zone = args[:availability_zone] if args.key?(:availability_zone)
          @city = args[:city] if args.key?(:city)
          @continent = args[:continent] if args.key?(:continent)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @facility_provider = args[:facility_provider] if args.key?(:facility_provider)
          @facility_provider_facility_id = args[:facility_provider_facility_id] if args.key?(:facility_provider_facility_id)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @name = args[:name] if args.key?(:name)
          @peeringdb_facility_id = args[:peeringdb_facility_id] if args.key?(:peeringdb_facility_id)
          @region_infos = args[:region_infos] if args.key?(:region_infos)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @status = args[:status] if args.key?(:status)
        end
      end
      
      # Response to the list request, and contains a list of interconnect locations.
      class InterconnectLocationList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of InterconnectLocation resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::InterconnectLocation>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#interconnectLocationList for
        # lists of interconnect locations.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::InterconnectLocationList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::InterconnectLocationList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Information about any potential InterconnectAttachments between an
      # Interconnect at a specific InterconnectLocation, and a specific Cloud Region.
      class InterconnectLocationRegionInfo
        include Google::Apis::Core::Hashable
      
        # Expected round-trip time in milliseconds, from this InterconnectLocation to a
        # VM in this region.
        # Corresponds to the JSON property `expectedRttMs`
        # @return [Fixnum]
        attr_accessor :expected_rtt_ms
      
        # Identifies the network presence of this location.
        # Corresponds to the JSON property `locationPresence`
        # @return [String]
        attr_accessor :location_presence
      
        # URL for the region of this location.
        # Corresponds to the JSON property `region`
        # @return [String]
        attr_accessor :region
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @expected_rtt_ms = args[:expected_rtt_ms] if args.key?(:expected_rtt_ms)
          @location_presence = args[:location_presence] if args.key?(:location_presence)
          @region = args[:region] if args.key?(:region)
        end
      end
      
      # Description of a planned outage on this Interconnect.
      class InterconnectOutageNotification
        include Google::Apis::Core::Hashable
      
        # If issue_type is IT_PARTIAL_OUTAGE, a list of the Google-side circuit IDs that
        # will be affected.
        # Corresponds to the JSON property `affectedCircuits`
        # @return [Array<String>]
        attr_accessor :affected_circuits
      
        # A description about the purpose of the outage.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # Scheduled end time for the outage (milliseconds since Unix epoch).
        # Corresponds to the JSON property `endTime`
        # @return [Fixnum]
        attr_accessor :end_time
      
        # Form this outage is expected to take, which can take one of the following
        # values:
        # - OUTAGE: The Interconnect may be completely out of service for some or all of
        # the specified window.
        # - PARTIAL_OUTAGE: Some circuits comprising the Interconnect as a whole should
        # remain up, but with reduced bandwidth. Note that the versions of this enum
        # prefixed with "IT_" have been deprecated in favor of the unprefixed values.
        # Corresponds to the JSON property `issueType`
        # @return [String]
        attr_accessor :issue_type
      
        # Unique identifier for this outage notification.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # The party that generated this notification, which can take the following value:
        # 
        # - GOOGLE: this notification as generated by Google. Note that the value of
        # NSRC_GOOGLE has been deprecated in favor of GOOGLE.
        # Corresponds to the JSON property `source`
        # @return [String]
        attr_accessor :source
      
        # Scheduled start time for the outage (milliseconds since Unix epoch).
        # Corresponds to the JSON property `startTime`
        # @return [Fixnum]
        attr_accessor :start_time
      
        # State of this notification, which can take one of the following values:
        # - ACTIVE: This outage notification is active. The event could be in the past,
        # present, or future. See start_time and end_time for scheduling.
        # - CANCELLED: The outage associated with this notification was cancelled before
        # the outage was due to start. Note that the versions of this enum prefixed with
        # "NS_" have been deprecated in favor of the unprefixed values.
        # Corresponds to the JSON property `state`
        # @return [String]
        attr_accessor :state
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @affected_circuits = args[:affected_circuits] if args.key?(:affected_circuits)
          @description = args[:description] if args.key?(:description)
          @end_time = args[:end_time] if args.key?(:end_time)
          @issue_type = args[:issue_type] if args.key?(:issue_type)
          @name = args[:name] if args.key?(:name)
          @source = args[:source] if args.key?(:source)
          @start_time = args[:start_time] if args.key?(:start_time)
          @state = args[:state] if args.key?(:state)
        end
      end
      
      # Response for the InterconnectsGetDiagnosticsRequest.
      class InterconnectsGetDiagnosticsResponse
        include Google::Apis::Core::Hashable
      
        # Diagnostics information about interconnect, contains detailed and current
        # technical information about Google's side of the connection.
        # Corresponds to the JSON property `result`
        # @return [Google::Apis::ComputeAlpha::InterconnectDiagnostics]
        attr_accessor :result
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @result = args[:result] if args.key?(:result)
        end
      end
      
      # 
      class InternalIpAddress
        include Google::Apis::Core::Hashable
      
        # IP CIDR address or range.
        # Corresponds to the JSON property `cidr`
        # @return [String]
        attr_accessor :cidr
      
        # The owner of the internal IP address.
        # Corresponds to the JSON property `owner`
        # @return [String]
        attr_accessor :owner
      
        # The purpose of the internal IP address if applicable.
        # Corresponds to the JSON property `purpose`
        # @return [String]
        attr_accessor :purpose
      
        # The region of the internal IP address if applicable.
        # Corresponds to the JSON property `region`
        # @return [String]
        attr_accessor :region
      
        # The type of the internal IP address.
        # Corresponds to the JSON property `type`
        # @return [String]
        attr_accessor :type
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @cidr = args[:cidr] if args.key?(:cidr)
          @owner = args[:owner] if args.key?(:owner)
          @purpose = args[:purpose] if args.key?(:purpose)
          @region = args[:region] if args.key?(:region)
          @type = args[:type] if args.key?(:type)
        end
      end
      
      # 
      class InternalIpOwner
        include Google::Apis::Core::Hashable
      
        # IP CIDR range being owned.
        # Corresponds to the JSON property `ipCidrRange`
        # @return [String]
        attr_accessor :ip_cidr_range
      
        # URLs of the IP owners of the IP CIDR range.
        # Corresponds to the JSON property `owners`
        # @return [Array<String>]
        attr_accessor :owners
      
        # Whether this IP CIDR range is reserved for system use.
        # Corresponds to the JSON property `systemOwned`
        # @return [Boolean]
        attr_accessor :system_owned
        alias_method :system_owned?, :system_owned
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @ip_cidr_range = args[:ip_cidr_range] if args.key?(:ip_cidr_range)
          @owners = args[:owners] if args.key?(:owners)
          @system_owned = args[:system_owned] if args.key?(:system_owned)
        end
      end
      
      # 
      class IpAddressesList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of InternalIpAddress resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::InternalIpAddress>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#ipAddressesList for IP
        # addresses lists.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::IpAddressesList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::IpAddressesList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Contains a list of IP owners.
      class IpOwnerList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of InternalIpOwner resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::InternalIpOwner>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#ipOwnerList for lists of IP
        # owners.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::IpOwnerList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::IpOwnerList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # [Deprecated] JWT configuration for origin authentication. JWT configuration
      # for origin authentication.
      class Jwt
        include Google::Apis::Core::Hashable
      
        # A JWT containing any of these audiences will be accepted. The service name
        # will be accepted if audiences is empty. Examples: bookstore_android.apps.
        # googleusercontent.com, bookstore_web.apps.googleusercontent.com
        # Corresponds to the JSON property `audiences`
        # @return [Array<String>]
        attr_accessor :audiences
      
        # Identifies the issuer that issued the JWT, which is usually a URL or an email
        # address. Examples: https://securetoken.google.com, 1234567-compute@developer.
        # gserviceaccount.com
        # Corresponds to the JSON property `issuer`
        # @return [String]
        attr_accessor :issuer
      
        # The provider's public key set to validate the signature of the JWT.
        # Corresponds to the JSON property `jwksPublicKeys`
        # @return [String]
        attr_accessor :jwks_public_keys
      
        # jwt_headers and jwt_params define where to extract the JWT from an HTTP
        # request. If no explicit location is specified, the following default locations
        # are tried in order:
        # 1. The Authorization header using the Bearer schema. See `here `_. Example:
        # Authorization: Bearer .
        # 2. `access_token` query parameter. See `this `_
        # Multiple JWTs can be verified for a request. Each JWT has to be extracted from
        # the locations its issuer specified or from the default locations.
        # This field is set if JWT is sent in a request header. This field specifies the
        # header name. For example, if `header=x-goog-iap-jwt-assertion`, the header
        # format will be x-goog-iap-jwt-assertion: .
        # Corresponds to the JSON property `jwtHeaders`
        # @return [Array<Google::Apis::ComputeAlpha::JwtHeader>]
        attr_accessor :jwt_headers
      
        # This field is set if JWT is sent in a query parameter. This field specifies
        # the query parameter name. For example, if jwt_params[0] is jwt_token, the JWT
        # format in the query parameter is /path?jwt_token=.
        # Corresponds to the JSON property `jwtParams`
        # @return [Array<String>]
        attr_accessor :jwt_params
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @audiences = args[:audiences] if args.key?(:audiences)
          @issuer = args[:issuer] if args.key?(:issuer)
          @jwks_public_keys = args[:jwks_public_keys] if args.key?(:jwks_public_keys)
          @jwt_headers = args[:jwt_headers] if args.key?(:jwt_headers)
          @jwt_params = args[:jwt_params] if args.key?(:jwt_params)
        end
      end
      
      # [Deprecated] This message specifies a header location to extract JWT token.
      # This message specifies a header location to extract JWT token.
      class JwtHeader
        include Google::Apis::Core::Hashable
      
        # The HTTP header name.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # The value prefix. The value format is "value_prefix" For example, for "
        # Authorization: Bearer ", value_prefix="Bearer " with a space at the end.
        # Corresponds to the JSON property `valuePrefix`
        # @return [String]
        attr_accessor :value_prefix
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @name = args[:name] if args.key?(:name)
          @value_prefix = args[:value_prefix] if args.key?(:value_prefix)
        end
      end
      
      # Represents a License resource.
      # A License represents billing and aggregate usage data for public and
      # marketplace images.  Caution This resource is intended for use only by third-
      # party partners who are creating Cloud Marketplace images. (== resource_for `$
      # api_version`.licenses ==)
      class License
        include Google::Apis::Core::Hashable
      
        # [Output Only] Deprecated. This field no longer reflects whether a license
        # charges a usage fee.
        # Corresponds to the JSON property `chargesUseFee`
        # @return [Boolean]
        attr_accessor :charges_use_fee
        alias_method :charges_use_fee?, :charges_use_fee
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional textual description of the resource; provided by the client when
        # the resource is created.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] Type of resource. Always compute#license for licenses.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] The unique code used to attach this license to images, snapshots,
        # and disks.
        # Corresponds to the JSON property `licenseCode`
        # @return [Fixnum]
        attr_accessor :license_code
      
        # Name of the resource. The name must be 1-63 characters long and comply with
        # RFC1035.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # 
        # Corresponds to the JSON property `resourceRequirements`
        # @return [Google::Apis::ComputeAlpha::LicenseResourceRequirements]
        attr_accessor :resource_requirements
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # If false, licenses will not be copied from the source resource when creating
        # an image from a disk, disk from snapshot, or snapshot from disk.
        # Corresponds to the JSON property `transferable`
        # @return [Boolean]
        attr_accessor :transferable
        alias_method :transferable?, :transferable
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @charges_use_fee = args[:charges_use_fee] if args.key?(:charges_use_fee)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @license_code = args[:license_code] if args.key?(:license_code)
          @name = args[:name] if args.key?(:name)
          @resource_requirements = args[:resource_requirements] if args.key?(:resource_requirements)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @transferable = args[:transferable] if args.key?(:transferable)
        end
      end
      
      # Represents a License Code resource.
      # A License Code is a unique identifier used to represent a license resource.
      # Caution This resource is intended for use only by third-party partners who are
      # creating Cloud Marketplace images. (== resource_for `$api_version`.
      # licenseCodes ==)
      class LicenseCode
        include Google::Apis::Core::Hashable
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # [Output Only] Description of this License Code.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] Type of resource. Always compute#licenseCode for licenses.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] URL and description aliases of Licenses with the same License
        # Code.
        # Corresponds to the JSON property `licenseAlias`
        # @return [Array<Google::Apis::ComputeAlpha::LicenseCodeLicenseAlias>]
        attr_accessor :license_alias
      
        # [Output Only] Name of the resource. The name is 1-20 characters long and must
        # be a valid 64 bit integer.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Current state of this License Code.
        # Corresponds to the JSON property `state`
        # @return [String]
        attr_accessor :state
      
        # [Output Only] If true, the license will remain attached when creating images
        # or snapshots from disks. Otherwise, the license is not transferred.
        # Corresponds to the JSON property `transferable`
        # @return [Boolean]
        attr_accessor :transferable
        alias_method :transferable?, :transferable
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @license_alias = args[:license_alias] if args.key?(:license_alias)
          @name = args[:name] if args.key?(:name)
          @self_link = args[:self_link] if args.key?(:self_link)
          @state = args[:state] if args.key?(:state)
          @transferable = args[:transferable] if args.key?(:transferable)
        end
      end
      
      # 
      class LicenseCodeLicenseAlias
        include Google::Apis::Core::Hashable
      
        # [Output Only] Description of this License Code.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # [Output Only] URL of license corresponding to this License Code.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @description = args[:description] if args.key?(:description)
          @self_link = args[:self_link] if args.key?(:self_link)
        end
      end
      
      # Commitment for a particular license resource.
      class LicenseResourceCommitment
        include Google::Apis::Core::Hashable
      
        # The number of licenses purchased.
        # Corresponds to the JSON property `amount`
        # @return [Fixnum]
        attr_accessor :amount
      
        # Specifies the core range of the instance for which this license applies.
        # Corresponds to the JSON property `coresPerLicense`
        # @return [String]
        attr_accessor :cores_per_license
      
        # Any applicable license URI.
        # Corresponds to the JSON property `license`
        # @return [String]
        attr_accessor :license
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @amount = args[:amount] if args.key?(:amount)
          @cores_per_license = args[:cores_per_license] if args.key?(:cores_per_license)
          @license = args[:license] if args.key?(:license)
        end
      end
      
      # 
      class LicenseResourceRequirements
        include Google::Apis::Core::Hashable
      
        # Minimum number of guest cpus required to use the Instance. Enforced at
        # Instance creation and Instance start.
        # Corresponds to the JSON property `minGuestCpuCount`
        # @return [Fixnum]
        attr_accessor :min_guest_cpu_count
      
        # Minimum memory required to use the Instance. Enforced at Instance creation and
        # Instance start.
        # Corresponds to the JSON property `minMemoryMb`
        # @return [Fixnum]
        attr_accessor :min_memory_mb
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @min_guest_cpu_count = args[:min_guest_cpu_count] if args.key?(:min_guest_cpu_count)
          @min_memory_mb = args[:min_memory_mb] if args.key?(:min_memory_mb)
        end
      end
      
      # 
      class LicensesListResponse
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of License resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::License>]
        attr_accessor :items
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::LicensesListResponse::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::LicensesListResponse::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class LocalDisk
        include Google::Apis::Core::Hashable
      
        # Specifies the number of such disks.
        # Corresponds to the JSON property `diskCount`
        # @return [Fixnum]
        attr_accessor :disk_count
      
        # Specifies the size of the disk in base-2 GB.
        # Corresponds to the JSON property `diskSizeGb`
        # @return [Fixnum]
        attr_accessor :disk_size_gb
      
        # Specifies the desired disk type on the node. This disk type must be a local
        # storage type (e.g.: local-ssd). Note that for nodeTemplates, this should be
        # the name of the disk type and not its URL.
        # Corresponds to the JSON property `diskType`
        # @return [String]
        attr_accessor :disk_type
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @disk_count = args[:disk_count] if args.key?(:disk_count)
          @disk_size_gb = args[:disk_size_gb] if args.key?(:disk_size_gb)
          @disk_type = args[:disk_type] if args.key?(:disk_type)
        end
      end
      
      # Configuration for location policy among multiple possible locations (e.g.
      # preferences for zone selection among zones in a single region).
      class LocationPolicy
        include Google::Apis::Core::Hashable
      
        # Location configurations mapped by location name. Currently only zone names are
        # supported and must be represented as valid internal URLs, like: zones/us-
        # central1-a.
        # Corresponds to the JSON property `locations`
        # @return [Hash<String,Google::Apis::ComputeAlpha::LocationPolicyLocation>]
        attr_accessor :locations
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @locations = args[:locations] if args.key?(:locations)
        end
      end
      
      # 
      class LocationPolicyLocation
        include Google::Apis::Core::Hashable
      
        # 
        # Corresponds to the JSON property `preference`
        # @return [String]
        attr_accessor :preference
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @preference = args[:preference] if args.key?(:preference)
        end
      end
      
      # Specifies what kind of log the caller must write
      class LogConfig
        include Google::Apis::Core::Hashable
      
        # Write a Cloud Audit log
        # Corresponds to the JSON property `cloudAudit`
        # @return [Google::Apis::ComputeAlpha::LogConfigCloudAuditOptions]
        attr_accessor :cloud_audit
      
        # Increment a streamz counter with the specified metric and field names.
        # Metric names should start with a '/', generally be lowercase-only, and end in "
        # _count". Field names should not contain an initial slash. The actual exported
        # metric names will have "/iam/policy" prepended.
        # Field names correspond to IAM request parameters and field values are their
        # respective values.
        # Supported field names: - "authority", which is "[token]" if IAMContext.token
        # is present, otherwise the value of IAMContext.authority_selector if present,
        # and otherwise a representation of IAMContext.principal; or - "iam_principal",
        # a representation of IAMContext.principal even if a token or authority selector
        # is present; or - "" (empty string), resulting in a counter with no fields.
        # Examples: counter ` metric: "/debug_access_count" field: "iam_principal" ` ==>
        # increment counter /iam/policy/debug_access_count `iam_principal=[value of
        # IAMContext.principal]`
        # Corresponds to the JSON property `counter`
        # @return [Google::Apis::ComputeAlpha::LogConfigCounterOptions]
        attr_accessor :counter
      
        # Write a Data Access (Gin) log
        # Corresponds to the JSON property `dataAccess`
        # @return [Google::Apis::ComputeAlpha::LogConfigDataAccessOptions]
        attr_accessor :data_access
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @cloud_audit = args[:cloud_audit] if args.key?(:cloud_audit)
          @counter = args[:counter] if args.key?(:counter)
          @data_access = args[:data_access] if args.key?(:data_access)
        end
      end
      
      # Write a Cloud Audit log
      class LogConfigCloudAuditOptions
        include Google::Apis::Core::Hashable
      
        # Authorization-related information used by Cloud Audit Logging.
        # Corresponds to the JSON property `authorizationLoggingOptions`
        # @return [Google::Apis::ComputeAlpha::AuthorizationLoggingOptions]
        attr_accessor :authorization_logging_options
      
        # The log_name to populate in the Cloud Audit Record.
        # Corresponds to the JSON property `logName`
        # @return [String]
        attr_accessor :log_name
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @authorization_logging_options = args[:authorization_logging_options] if args.key?(:authorization_logging_options)
          @log_name = args[:log_name] if args.key?(:log_name)
        end
      end
      
      # Increment a streamz counter with the specified metric and field names.
      # Metric names should start with a '/', generally be lowercase-only, and end in "
      # _count". Field names should not contain an initial slash. The actual exported
      # metric names will have "/iam/policy" prepended.
      # Field names correspond to IAM request parameters and field values are their
      # respective values.
      # Supported field names: - "authority", which is "[token]" if IAMContext.token
      # is present, otherwise the value of IAMContext.authority_selector if present,
      # and otherwise a representation of IAMContext.principal; or - "iam_principal",
      # a representation of IAMContext.principal even if a token or authority selector
      # is present; or - "" (empty string), resulting in a counter with no fields.
      # Examples: counter ` metric: "/debug_access_count" field: "iam_principal" ` ==>
      # increment counter /iam/policy/debug_access_count `iam_principal=[value of
      # IAMContext.principal]`
      class LogConfigCounterOptions
        include Google::Apis::Core::Hashable
      
        # Custom fields.
        # Corresponds to the JSON property `customFields`
        # @return [Array<Google::Apis::ComputeAlpha::LogConfigCounterOptionsCustomField>]
        attr_accessor :custom_fields
      
        # The field value to attribute.
        # Corresponds to the JSON property `field`
        # @return [String]
        attr_accessor :field
      
        # The metric to update.
        # Corresponds to the JSON property `metric`
        # @return [String]
        attr_accessor :metric
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @custom_fields = args[:custom_fields] if args.key?(:custom_fields)
          @field = args[:field] if args.key?(:field)
          @metric = args[:metric] if args.key?(:metric)
        end
      end
      
      # Custom fields. These can be used to create a counter with arbitrary field/
      # value pairs. See: go/rpcsp-custom-fields.
      class LogConfigCounterOptionsCustomField
        include Google::Apis::Core::Hashable
      
        # Name is the field name.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # Value is the field value. It is important that in contrast to the
        # CounterOptions.field, the value here is a constant that is not derived from
        # the IAMContext.
        # Corresponds to the JSON property `value`
        # @return [String]
        attr_accessor :value
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @name = args[:name] if args.key?(:name)
          @value = args[:value] if args.key?(:value)
        end
      end
      
      # Write a Data Access (Gin) log
      class LogConfigDataAccessOptions
        include Google::Apis::Core::Hashable
      
        # 
        # Corresponds to the JSON property `logMode`
        # @return [String]
        attr_accessor :log_mode
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @log_mode = args[:log_mode] if args.key?(:log_mode)
        end
      end
      
      # Represents a machine image resource.
      # A machine image is a Compute Engine resource that stores all the configuration,
      # metadata, permissions, and data from one or more disks required to create a
      # Virtual machine (VM) instance. For more information, see Machine images. (==
      # resource_for `$api_version`.machineImages ==)
      class MachineImage
        include Google::Apis::Core::Hashable
      
        # [Output Only] The creation timestamp for this machine image in RFC3339 text
        # format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # [Input Only] Whether to attempt an application consistent machine image by
        # informing the OS to prepare for the snapshot process. Currently only supported
        # on Windows instances using the Volume Shadow Copy Service (VSS).
        # Corresponds to the JSON property `guestFlush`
        # @return [Boolean]
        attr_accessor :guest_flush
        alias_method :guest_flush?, :guest_flush
      
        # [Output Only] A unique identifier for this machine image. The server defines
        # this identifier.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] The resource type, which is always compute#machineImage for
        # machine image.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # Encrypts the machine image using a customer-supplied encryption key.
        # After you encrypt a machine image using a customer-supplied key, you must
        # provide the same key if you use the machine image later. For example, you must
        # provide the encryption key when you create an instance from the encrypted
        # machine image in a future request.
        # Customer-supplied encryption keys do not protect access to metadata of the
        # machine image.
        # If you do not provide an encryption key when creating the machine image, then
        # the machine image will be encrypted using an automatically generated key and
        # you do not need to provide a key to use the machine image later.
        # Corresponds to the JSON property `machineImageEncryptionKey`
        # @return [Google::Apis::ComputeAlpha::CustomerEncryptionKey]
        attr_accessor :machine_image_encryption_key
      
        # Name of the resource; provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # [Output Only] The URL for this machine image. The server defines this URL.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # [Input Only] The customer-supplied encryption key of the disks attached to the
        # source instance. Required if the source disk is protected by a customer-
        # supplied encryption key.
        # Corresponds to the JSON property `sourceDiskEncryptionKeys`
        # @return [Array<Google::Apis::ComputeAlpha::SourceDiskEncryptionKey>]
        attr_accessor :source_disk_encryption_keys
      
        # The source instance used to create the machine image. You can provide this as
        # a partial or full URL to the resource. For example, the following are valid
        # values:
        # - https://www.googleapis.com/compute/v1/projects/project/zones/zone/instances/
        # instance
        # - projects/project/zones/zone/instances/instance
        # Corresponds to the JSON property `sourceInstance`
        # @return [String]
        attr_accessor :source_instance
      
        # 
        # Corresponds to the JSON property `sourceInstanceProperties`
        # @return [Google::Apis::ComputeAlpha::SourceInstanceProperties]
        attr_accessor :source_instance_properties
      
        # [Output Only] The status of the machine image. One of the following values:
        # INVALID, CREATING, READY, DELETING, and UPLOADING.
        # Corresponds to the JSON property `status`
        # @return [String]
        attr_accessor :status
      
        # The regional or multi-regional Cloud Storage bucket location where the machine
        # image is stored.
        # Corresponds to the JSON property `storageLocations`
        # @return [Array<String>]
        attr_accessor :storage_locations
      
        # [Output Only] Total size of the storage used by the machine image.
        # Corresponds to the JSON property `totalStorageBytes`
        # @return [Fixnum]
        attr_accessor :total_storage_bytes
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @guest_flush = args[:guest_flush] if args.key?(:guest_flush)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @machine_image_encryption_key = args[:machine_image_encryption_key] if args.key?(:machine_image_encryption_key)
          @name = args[:name] if args.key?(:name)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @source_disk_encryption_keys = args[:source_disk_encryption_keys] if args.key?(:source_disk_encryption_keys)
          @source_instance = args[:source_instance] if args.key?(:source_instance)
          @source_instance_properties = args[:source_instance_properties] if args.key?(:source_instance_properties)
          @status = args[:status] if args.key?(:status)
          @storage_locations = args[:storage_locations] if args.key?(:storage_locations)
          @total_storage_bytes = args[:total_storage_bytes] if args.key?(:total_storage_bytes)
        end
      end
      
      # A list of machine images.
      class MachineImageList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of MachineImage resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::MachineImage>]
        attr_accessor :items
      
        # [Output Only] The resource type, which is always compute#
        # machineImagesListResponse for machine image lists.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::MachineImageList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::MachineImageList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Represents a Machine Type resource.
      # You can use specific machine types for your VM instances based on performance
      # and pricing requirements. For more information, read Machine Types. (==
      # resource_for `$api_version`.machineTypes ==)
      class MachineType
        include Google::Apis::Core::Hashable
      
        # [Output Only] A list of accelerator configurations assigned to this machine
        # type.
        # Corresponds to the JSON property `accelerators`
        # @return [Array<Google::Apis::ComputeAlpha::MachineType::Accelerator>]
        attr_accessor :accelerators
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # Deprecation status for a public resource.
        # Corresponds to the JSON property `deprecated`
        # @return [Google::Apis::ComputeAlpha::DeprecationStatus]
        attr_accessor :deprecated
      
        # [Output Only] An optional textual description of the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # [Output Only] The number of virtual CPUs that are available to the instance.
        # Corresponds to the JSON property `guestCpus`
        # @return [Fixnum]
        attr_accessor :guest_cpus
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] Whether this machine type has a shared CPU. See Shared-core
        # machine types for more information.
        # Corresponds to the JSON property `isSharedCpu`
        # @return [Boolean]
        attr_accessor :is_shared_cpu
        alias_method :is_shared_cpu?, :is_shared_cpu
      
        # [Output Only] The type of the resource. Always compute#machineType for machine
        # types.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] Maximum persistent disks allowed.
        # Corresponds to the JSON property `maximumPersistentDisks`
        # @return [Fixnum]
        attr_accessor :maximum_persistent_disks
      
        # [Output Only] Maximum total persistent disks size (GB) allowed.
        # Corresponds to the JSON property `maximumPersistentDisksSizeGb`
        # @return [Fixnum]
        attr_accessor :maximum_persistent_disks_size_gb
      
        # [Output Only] The amount of physical memory available to the instance, defined
        # in MB.
        # Corresponds to the JSON property `memoryMb`
        # @return [Fixnum]
        attr_accessor :memory_mb
      
        # [Output Only] Name of the resource.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # [Output Only] The name of the zone where the machine type resides, such as us-
        # central1-a.
        # Corresponds to the JSON property `zone`
        # @return [String]
        attr_accessor :zone
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @accelerators = args[:accelerators] if args.key?(:accelerators)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @deprecated = args[:deprecated] if args.key?(:deprecated)
          @description = args[:description] if args.key?(:description)
          @guest_cpus = args[:guest_cpus] if args.key?(:guest_cpus)
          @id = args[:id] if args.key?(:id)
          @is_shared_cpu = args[:is_shared_cpu] if args.key?(:is_shared_cpu)
          @kind = args[:kind] if args.key?(:kind)
          @maximum_persistent_disks = args[:maximum_persistent_disks] if args.key?(:maximum_persistent_disks)
          @maximum_persistent_disks_size_gb = args[:maximum_persistent_disks_size_gb] if args.key?(:maximum_persistent_disks_size_gb)
          @memory_mb = args[:memory_mb] if args.key?(:memory_mb)
          @name = args[:name] if args.key?(:name)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @zone = args[:zone] if args.key?(:zone)
        end
        
        # 
        class Accelerator
          include Google::Apis::Core::Hashable
        
          # Number of accelerator cards exposed to the guest.
          # Corresponds to the JSON property `guestAcceleratorCount`
          # @return [Fixnum]
          attr_accessor :guest_accelerator_count
        
          # The accelerator type resource name, not a full URL, e.g. 'nvidia-tesla-k80'.
          # Corresponds to the JSON property `guestAcceleratorType`
          # @return [String]
          attr_accessor :guest_accelerator_type
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @guest_accelerator_count = args[:guest_accelerator_count] if args.key?(:guest_accelerator_count)
            @guest_accelerator_type = args[:guest_accelerator_type] if args.key?(:guest_accelerator_type)
          end
        end
      end
      
      # 
      class MachineTypeAggregatedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of MachineTypesScopedList resources.
        # Corresponds to the JSON property `items`
        # @return [Hash<String,Google::Apis::ComputeAlpha::MachineTypesScopedList>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#machineTypeAggregatedList for
        # aggregated lists of machine types.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Unreachable resources.
        # Corresponds to the JSON property `unreachables`
        # @return [Array<String>]
        attr_accessor :unreachables
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::MachineTypeAggregatedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @unreachables = args[:unreachables] if args.key?(:unreachables)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::MachineTypeAggregatedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Contains a list of machine types.
      class MachineTypeList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of MachineType resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::MachineType>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#machineTypeList for lists of
        # machine types.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::MachineTypeList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::MachineTypeList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class MachineTypesScopedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] A list of machine types contained in this scope.
        # Corresponds to the JSON property `machineTypes`
        # @return [Array<Google::Apis::ComputeAlpha::MachineType>]
        attr_accessor :machine_types
      
        # [Output Only] An informational warning that appears when the machine types
        # list is empty.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::MachineTypesScopedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @machine_types = args[:machine_types] if args.key?(:machine_types)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] An informational warning that appears when the machine types
        # list is empty.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::MachineTypesScopedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # A Managed Instance resource.
      class ManagedInstance
        include Google::Apis::Core::Hashable
      
        # [Output Only] The current action that the managed instance group has scheduled
        # for the instance. Possible values:
        # - NONE The instance is running, and the managed instance group does not have
        # any scheduled actions for this instance.
        # - CREATING The managed instance group is creating this instance. If the group
        # fails to create this instance, it will try again until it is successful.
        # - CREATING_WITHOUT_RETRIES The managed instance group is attempting to create
        # this instance only once. If the group fails to create this instance, it does
        # not try again and the group's targetSize value is decreased instead.
        # - RECREATING The managed instance group is recreating this instance.
        # - DELETING The managed instance group is permanently deleting this instance.
        # - ABANDONING The managed instance group is abandoning this instance. The
        # instance will be removed from the instance group and from any target pools
        # that are associated with this group.
        # - RESTARTING The managed instance group is restarting the instance.
        # - REFRESHING The managed instance group is applying configuration changes to
        # the instance without stopping it. For example, the group can update the target
        # pool list for an instance without stopping that instance.
        # - VERIFYING The managed instance group has created the instance and it is in
        # the process of being verified.
        # Corresponds to the JSON property `currentAction`
        # @return [String]
        attr_accessor :current_action
      
        # [Output only] The unique identifier for this resource. This field is empty
        # when instance does not exist.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] The URL of the instance. The URL can exist even if the instance
        # has not yet been created.
        # Corresponds to the JSON property `instance`
        # @return [String]
        attr_accessor :instance
      
        # [Output Only] Health state of the instance per health-check.
        # Corresponds to the JSON property `instanceHealth`
        # @return [Array<Google::Apis::ComputeAlpha::ManagedInstanceInstanceHealth>]
        attr_accessor :instance_health
      
        # [Output Only] The status of the instance. This field is empty when the
        # instance does not exist.
        # Corresponds to the JSON property `instanceStatus`
        # @return [String]
        attr_accessor :instance_status
      
        # [Output Only] The intended template of the instance. This field is empty when
        # current_action is one of ` DELETING, ABANDONING `.
        # Corresponds to the JSON property `instanceTemplate`
        # @return [String]
        attr_accessor :instance_template
      
        # [Output Only] Information about the last attempt to create or delete the
        # instance.
        # Corresponds to the JSON property `lastAttempt`
        # @return [Google::Apis::ComputeAlpha::ManagedInstanceLastAttempt]
        attr_accessor :last_attempt
      
        # Preserved state for a given instance.
        # Corresponds to the JSON property `preservedStateFromConfig`
        # @return [Google::Apis::ComputeAlpha::PreservedState]
        attr_accessor :preserved_state_from_config
      
        # Preserved state for a given instance.
        # Corresponds to the JSON property `preservedStateFromPolicy`
        # @return [Google::Apis::ComputeAlpha::PreservedState]
        attr_accessor :preserved_state_from_policy
      
        # [Output Only] Tag describing the version.
        # Corresponds to the JSON property `tag`
        # @return [String]
        attr_accessor :tag
      
        # [Output Only] Intended version of this instance.
        # Corresponds to the JSON property `version`
        # @return [Google::Apis::ComputeAlpha::ManagedInstanceVersion]
        attr_accessor :version
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @current_action = args[:current_action] if args.key?(:current_action)
          @id = args[:id] if args.key?(:id)
          @instance = args[:instance] if args.key?(:instance)
          @instance_health = args[:instance_health] if args.key?(:instance_health)
          @instance_status = args[:instance_status] if args.key?(:instance_status)
          @instance_template = args[:instance_template] if args.key?(:instance_template)
          @last_attempt = args[:last_attempt] if args.key?(:last_attempt)
          @preserved_state_from_config = args[:preserved_state_from_config] if args.key?(:preserved_state_from_config)
          @preserved_state_from_policy = args[:preserved_state_from_policy] if args.key?(:preserved_state_from_policy)
          @tag = args[:tag] if args.key?(:tag)
          @version = args[:version] if args.key?(:version)
        end
      end
      
      # 
      class ManagedInstanceInstanceHealth
        include Google::Apis::Core::Hashable
      
        # [Output Only] The current detailed instance health state.
        # Corresponds to the JSON property `detailedHealthState`
        # @return [String]
        attr_accessor :detailed_health_state
      
        # [Output Only] The URL for the health check that verifies whether the instance
        # is healthy.
        # Corresponds to the JSON property `healthCheck`
        # @return [String]
        attr_accessor :health_check
      
        # [Output Only] The current instance health state. This field will not get
        # promoted to beta/GA and might be removed from alpha APIs after 01/12/2019.
        # Please use detailed_health_state field instead.
        # Corresponds to the JSON property `healthState`
        # @return [String]
        attr_accessor :health_state
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @detailed_health_state = args[:detailed_health_state] if args.key?(:detailed_health_state)
          @health_check = args[:health_check] if args.key?(:health_check)
          @health_state = args[:health_state] if args.key?(:health_state)
        end
      end
      
      # 
      class ManagedInstanceLastAttempt
        include Google::Apis::Core::Hashable
      
        # [Output Only] Encountered errors during the last attempt to create or delete
        # the instance.
        # Corresponds to the JSON property `errors`
        # @return [Google::Apis::ComputeAlpha::ManagedInstanceLastAttempt::Errors]
        attr_accessor :errors
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @errors = args[:errors] if args.key?(:errors)
        end
        
        # [Output Only] Encountered errors during the last attempt to create or delete
        # the instance.
        class Errors
          include Google::Apis::Core::Hashable
        
          # [Output Only] The array of errors encountered while processing this operation.
          # Corresponds to the JSON property `errors`
          # @return [Array<Google::Apis::ComputeAlpha::ManagedInstanceLastAttempt::Errors::Error>]
          attr_accessor :errors
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @errors = args[:errors] if args.key?(:errors)
          end
          
          # 
          class Error
            include Google::Apis::Core::Hashable
          
            # [Output Only] The error type identifier for this error.
            # Corresponds to the JSON property `code`
            # @return [String]
            attr_accessor :code
          
            # [Output Only] Indicates the field in the request that caused the error. This
            # property is optional.
            # Corresponds to the JSON property `location`
            # @return [String]
            attr_accessor :location
          
            # [Output Only] An optional, human-readable error message.
            # Corresponds to the JSON property `message`
            # @return [String]
            attr_accessor :message
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @code = args[:code] if args.key?(:code)
              @location = args[:location] if args.key?(:location)
              @message = args[:message] if args.key?(:message)
            end
          end
        end
      end
      
      # 
      class ManagedInstanceVersion
        include Google::Apis::Core::Hashable
      
        # [Output Only] The intended template of the instance. This field is empty when
        # current_action is one of ` DELETING, ABANDONING `.
        # Corresponds to the JSON property `instanceTemplate`
        # @return [String]
        attr_accessor :instance_template
      
        # [Output Only] Name of the version.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @instance_template = args[:instance_template] if args.key?(:instance_template)
          @name = args[:name] if args.key?(:name)
        end
      end
      
      # A metadata key/value entry.
      class Metadata
        include Google::Apis::Core::Hashable
      
        # Specifies a fingerprint for this request, which is essentially a hash of the
        # metadata's contents and used for optimistic locking. The fingerprint is
        # initially generated by Compute Engine and changes after every request to
        # modify or update metadata. You must always provide an up-to-date fingerprint
        # hash in order to update or change metadata, otherwise the request will fail
        # with error 412 conditionNotMet.
        # To see the latest fingerprint, make a get() request to retrieve the resource.
        # Corresponds to the JSON property `fingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :fingerprint
      
        # Array of key/value pairs. The total size of all keys and values must be less
        # than 512 KB.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::Metadata::Item>]
        attr_accessor :items
      
        # [Output Only] Type of the resource. Always compute#metadata for metadata.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @fingerprint = args[:fingerprint] if args.key?(:fingerprint)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
        end
        
        # 
        class Item
          include Google::Apis::Core::Hashable
        
          # Key for the metadata entry. Keys must conform to the following regexp: [a-zA-
          # Z0-9-_]+, and be less than 128 bytes in length. This is reflected as part of a
          # URL in the metadata server. Additionally, to avoid ambiguity, keys must not
          # conflict with any other metadata keys for the project.
          # Corresponds to the JSON property `key`
          # @return [String]
          attr_accessor :key
        
          # Value for the metadata entry. These are free-form strings, and only have
          # meaning as interpreted by the image running in the instance. The only
          # restriction placed on values is that their size must be less than or equal to
          # 262144 bytes (256 KiB).
          # Corresponds to the JSON property `value`
          # @return [String]
          attr_accessor :value
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @key = args[:key] if args.key?(:key)
            @value = args[:value] if args.key?(:value)
          end
        end
      end
      
      # [Deprecated] Custom authenticator credentials. Custom authenticator
      # credentials.
      class MetadataCredentialsFromPlugin
        include Google::Apis::Core::Hashable
      
        # Plugin name.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # A text proto that conforms to a Struct type definition interpreted by the
        # plugin.
        # Corresponds to the JSON property `structConfig`
        # @return [String]
        attr_accessor :struct_config
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @name = args[:name] if args.key?(:name)
          @struct_config = args[:struct_config] if args.key?(:struct_config)
        end
      end
      
      # Opaque filter criteria used by loadbalancers to restrict routing configuration
      # to a limited set of loadbalancing proxies. Proxies and sidecars involved in
      # loadbalancing would typically present metadata to the loadbalancers which need
      # to match criteria specified here. If a match takes place, the relevant
      # configuration is made available to those proxies.
      # For each metadataFilter in this list, if its filterMatchCriteria is set to
      # MATCH_ANY, at least one of the filterLabels must match the corresponding label
      # provided in the metadata. If its filterMatchCriteria is set to MATCH_ALL, then
      # all of its filterLabels must match with corresponding labels provided in the
      # metadata.
      # An example for using metadataFilters would be: if loadbalancing involves
      # Envoys, they will only receive routing configuration when values in
      # metadataFilters match values supplied in <a href="https://www.envoyproxy.io/
      # docs/envoy/latest/api-v2/api/v2/core/base.proto#envoy-api-msg-core-node" Node
      # metadata of their XDS requests to loadbalancers.
      class MetadataFilter
        include Google::Apis::Core::Hashable
      
        # The list of label value pairs that must match labels in the provided metadata
        # based on filterMatchCriteria
        # This list must not be empty and can have at the most 64 entries.
        # Corresponds to the JSON property `filterLabels`
        # @return [Array<Google::Apis::ComputeAlpha::MetadataFilterLabelMatch>]
        attr_accessor :filter_labels
      
        # Specifies how individual filterLabel matches within the list of filterLabels
        # contribute towards the overall metadataFilter match.
        # Supported values are:
        # - MATCH_ANY: At least one of the filterLabels must have a matching label in
        # the provided metadata.
        # - MATCH_ALL: All filterLabels must have matching labels in the provided
        # metadata.
        # Corresponds to the JSON property `filterMatchCriteria`
        # @return [String]
        attr_accessor :filter_match_criteria
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @filter_labels = args[:filter_labels] if args.key?(:filter_labels)
          @filter_match_criteria = args[:filter_match_criteria] if args.key?(:filter_match_criteria)
        end
      end
      
      # MetadataFilter label name value pairs that are expected to match corresponding
      # labels presented as metadata to the loadbalancer.
      class MetadataFilterLabelMatch
        include Google::Apis::Core::Hashable
      
        # Name of metadata label.
        # The name can have a maximum length of 1024 characters and must be at least 1
        # character long.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # The value of the label must match the specified value.
        # value can have a maximum length of 1024 characters.
        # Corresponds to the JSON property `value`
        # @return [String]
        attr_accessor :value
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @name = args[:name] if args.key?(:name)
          @value = args[:value] if args.key?(:value)
        end
      end
      
      # [Deprecated] Configuration for the mutual Tls mode for peer authentication.
      # Configuration for the mutual Tls mode for peer authentication.
      class MutualTls
        include Google::Apis::Core::Hashable
      
        # Specifies if the server TLS is configured to be strict or permissive. This
        # field can be set to one of the following: STRICT: Client certificate must be
        # presented, connection is in TLS. PERMISSIVE: Client certificate can be omitted,
        # connection can be either plaintext or TLS.
        # Corresponds to the JSON property `mode`
        # @return [String]
        attr_accessor :mode
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @mode = args[:mode] if args.key?(:mode)
        end
      end
      
      # The named port. For example: .
      class NamedPort
        include Google::Apis::Core::Hashable
      
        # The name for this named port. The name must be 1-63 characters long, and
        # comply with RFC1035.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # The port number, which can be a value between 1 and 65535.
        # Corresponds to the JSON property `port`
        # @return [Fixnum]
        attr_accessor :port
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @name = args[:name] if args.key?(:name)
          @port = args[:port] if args.key?(:port)
        end
      end
      
      # Represents a VPC Network resource.
      # Networks connect resources to each other and to the internet. For more
      # information, read Virtual Private Cloud (VPC) Network. (== resource_for `$
      # api_version`.networks ==)
      class Network
        include Google::Apis::Core::Hashable
      
        # Deprecated in favor of subnet mode networks. The range of internal addresses
        # that are legal on this network. This range is a CIDR specification, for
        # example: 192.168.0.0/16. Provided by the client when the network is created.
        # Corresponds to the JSON property `IPv4Range`
        # @return [String]
        attr_accessor :i_pv4_range
      
        # Must be set to create a VPC network. If not set, a legacy network is created.
        # When set to true, the VPC network is created in auto mode. When set to false,
        # the VPC network is created in custom mode.
        # An auto mode VPC network starts with one subnet per region. Each subnet has a
        # predetermined range as described in Auto mode VPC network IP ranges.
        # For custom mode VPC networks, you can add subnets using the subnetworks insert
        # method.
        # Corresponds to the JSON property `autoCreateSubnetworks`
        # @return [Boolean]
        attr_accessor :auto_create_subnetworks
        alias_method :auto_create_subnetworks?, :auto_create_subnetworks
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this field when you create
        # the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # [Output Only] URL of the firewall policy the network is associated with.
        # Corresponds to the JSON property `firewallPolicy`
        # @return [String]
        attr_accessor :firewall_policy
      
        # [Output Only] The gateway address for default routing out of the network,
        # selected by GCP.
        # Corresponds to the JSON property `gatewayIPv4`
        # @return [String]
        attr_accessor :gateway_i_pv4
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] Type of the resource. Always compute#network for networks.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # Maximum Transmission Unit in bytes. The minimum value for this field is 1460
        # and the maximum value is 1500 bytes.
        # Corresponds to the JSON property `mtu`
        # @return [Fixnum]
        attr_accessor :mtu
      
        # Name of the resource. Provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?`. The first character must be a lowercase letter, and all
        # following characters (except for the last character) must be a dash, lowercase
        # letter, or digit. The last character must be a lowercase letter or digit.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # [Output Only] A list of network peerings for the resource.
        # Corresponds to the JSON property `peerings`
        # @return [Array<Google::Apis::ComputeAlpha::NetworkPeering>]
        attr_accessor :peerings
      
        # A routing configuration attached to a network resource. The message includes
        # the list of routers associated with the network, and a flag indicating the
        # type of routing behavior to enforce network-wide.
        # Corresponds to the JSON property `routingConfig`
        # @return [Google::Apis::ComputeAlpha::NetworkRoutingConfig]
        attr_accessor :routing_config
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # [Output Only] Server-defined fully-qualified URLs for all subnetworks in this
        # VPC network.
        # Corresponds to the JSON property `subnetworks`
        # @return [Array<String>]
        attr_accessor :subnetworks
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @i_pv4_range = args[:i_pv4_range] if args.key?(:i_pv4_range)
          @auto_create_subnetworks = args[:auto_create_subnetworks] if args.key?(:auto_create_subnetworks)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @firewall_policy = args[:firewall_policy] if args.key?(:firewall_policy)
          @gateway_i_pv4 = args[:gateway_i_pv4] if args.key?(:gateway_i_pv4)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @mtu = args[:mtu] if args.key?(:mtu)
          @name = args[:name] if args.key?(:name)
          @peerings = args[:peerings] if args.key?(:peerings)
          @routing_config = args[:routing_config] if args.key?(:routing_config)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @subnetworks = args[:subnetworks] if args.key?(:subnetworks)
        end
      end
      
      # The network endpoint.
      class NetworkEndpoint
        include Google::Apis::Core::Hashable
      
        # Metadata defined as annotations on the network endpoint.
        # Corresponds to the JSON property `annotations`
        # @return [Hash<String,String>]
        attr_accessor :annotations
      
        # Optional fully qualified domain name of network endpoint. This can only be
        # specified when NetworkEndpointGroup.network_endpoint_type is NON_GCP_FQDN_PORT.
        # Corresponds to the JSON property `fqdn`
        # @return [String]
        attr_accessor :fqdn
      
        # The name for a specific VM instance that the IP address belongs to. This is
        # required for network endpoints of type GCE_VM_IP_PORT. The instance must be in
        # the same zone of network endpoint group.
        # The name must be 1-63 characters long, and comply with RFC1035.
        # Corresponds to the JSON property `instance`
        # @return [String]
        attr_accessor :instance
      
        # Optional IPv4 address of network endpoint. The IP address must belong to a VM
        # in Compute Engine (either the primary IP or as part of an aliased IP range).
        # If the IP address is not specified, then the primary IP address for the VM
        # instance in the network that the network endpoint group belongs to will be
        # used.
        # Corresponds to the JSON property `ipAddress`
        # @return [String]
        attr_accessor :ip_address
      
        # Optional port number of network endpoint. If not specified and the
        # NetworkEndpointGroup.network_endpoint_type is GCE_IP_PORT, the defaultPort for
        # the network endpoint group will be used.
        # Corresponds to the JSON property `port`
        # @return [Fixnum]
        attr_accessor :port
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @annotations = args[:annotations] if args.key?(:annotations)
          @fqdn = args[:fqdn] if args.key?(:fqdn)
          @instance = args[:instance] if args.key?(:instance)
          @ip_address = args[:ip_address] if args.key?(:ip_address)
          @port = args[:port] if args.key?(:port)
        end
      end
      
      # Represents a collection of network endpoints.
      # A network endpoint group (NEG) defines how a set of endpoints should be
      # reached, whether they are reachable, and where they are located. For more
      # information about using NEGs, see  Setting up external HTTP(S) Load Balancing
      # with internet NEGs,  Setting up zonal NEGs, or  Setting up external HTTP(S)
      # Load Balancing with serverless NEGs. (== resource_for `$api_version`.
      # networkEndpointGroups ==) (== resource_for `$api_version`.
      # globalNetworkEndpointGroups ==) (== resource_for `$api_version`.
      # regionNetworkEndpointGroups ==)
      class NetworkEndpointGroup
        include Google::Apis::Core::Hashable
      
        # Metadata defined as annotations on the network endpoint group.
        # Corresponds to the JSON property `annotations`
        # @return [Hash<String,String>]
        attr_accessor :annotations
      
        # Configuration for an App Engine network endpoint group (NEG). The service is
        # optional, may be provided explicitly or in the URL mask. The version is
        # optional and can only be provided explicitly or in the URL mask when service
        # is present.
        # Note: App Engine service must be in the same project and located in the same
        # region as the Serverless NEG.
        # Corresponds to the JSON property `appEngine`
        # @return [Google::Apis::ComputeAlpha::NetworkEndpointGroupAppEngine]
        attr_accessor :app_engine
      
        # Configuration for a Cloud Function network endpoint group (NEG). The function
        # must be provided explicitly or in the URL mask.
        # Note: Cloud Function must be in the same project and located in the same
        # region as the Serverless NEG.
        # Corresponds to the JSON property `cloudFunction`
        # @return [Google::Apis::ComputeAlpha::NetworkEndpointGroupCloudFunction]
        attr_accessor :cloud_function
      
        # Configuration for a Cloud Run network endpoint group (NEG). The service must
        # be provided explicitly or in the URL mask. The tag is optional, may be
        # provided explicitly or in the URL mask.
        # Note: Cloud Run service must be in the same project and located in the same
        # region as the Serverless NEG.
        # Corresponds to the JSON property `cloudRun`
        # @return [Google::Apis::ComputeAlpha::NetworkEndpointGroupCloudRun]
        attr_accessor :cloud_run
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # The default port used if the port number is not specified in the network
        # endpoint.
        # Corresponds to the JSON property `defaultPort`
        # @return [Fixnum]
        attr_accessor :default_port
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] Type of the resource. Always compute#networkEndpointGroup for
        # network endpoint group.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # Load balancing specific fields for network endpoint group.
        # Corresponds to the JSON property `loadBalancer`
        # @return [Google::Apis::ComputeAlpha::NetworkEndpointGroupLbNetworkEndpointGroup]
        attr_accessor :load_balancer
      
        # Name of the resource; provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # The URL of the network to which all network endpoints in the NEG belong. Uses "
        # default" project network if unspecified.
        # Corresponds to the JSON property `network`
        # @return [String]
        attr_accessor :network
      
        # Type of network endpoints in this network endpoint group. Can be one of
        # GCE_VM_IP_PORT, NON_GCP_PRIVATE_IP_PORT, INTERNET_FQDN_PORT, INTERNET_IP_PORT,
        # or SERVERLESS.
        # Corresponds to the JSON property `networkEndpointType`
        # @return [String]
        attr_accessor :network_endpoint_type
      
        # [Output Only] The URL of the region where the network endpoint group is
        # located.
        # Corresponds to the JSON property `region`
        # @return [String]
        attr_accessor :region
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # [Output only] Number of network endpoints in the network endpoint group.
        # Corresponds to the JSON property `size`
        # @return [Fixnum]
        attr_accessor :size
      
        # Optional URL of the subnetwork to which all network endpoints in the NEG
        # belong.
        # Corresponds to the JSON property `subnetwork`
        # @return [String]
        attr_accessor :subnetwork
      
        # Specify the type of this network endpoint group. Only LOAD_BALANCING is valid
        # for now.
        # Corresponds to the JSON property `type`
        # @return [String]
        attr_accessor :type
      
        # [Output Only] The URL of the zone where the network endpoint group is located.
        # Corresponds to the JSON property `zone`
        # @return [String]
        attr_accessor :zone
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @annotations = args[:annotations] if args.key?(:annotations)
          @app_engine = args[:app_engine] if args.key?(:app_engine)
          @cloud_function = args[:cloud_function] if args.key?(:cloud_function)
          @cloud_run = args[:cloud_run] if args.key?(:cloud_run)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @default_port = args[:default_port] if args.key?(:default_port)
          @description = args[:description] if args.key?(:description)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @load_balancer = args[:load_balancer] if args.key?(:load_balancer)
          @name = args[:name] if args.key?(:name)
          @network = args[:network] if args.key?(:network)
          @network_endpoint_type = args[:network_endpoint_type] if args.key?(:network_endpoint_type)
          @region = args[:region] if args.key?(:region)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @size = args[:size] if args.key?(:size)
          @subnetwork = args[:subnetwork] if args.key?(:subnetwork)
          @type = args[:type] if args.key?(:type)
          @zone = args[:zone] if args.key?(:zone)
        end
      end
      
      # 
      class NetworkEndpointGroupAggregatedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of NetworkEndpointGroupsScopedList resources.
        # Corresponds to the JSON property `items`
        # @return [Hash<String,Google::Apis::ComputeAlpha::NetworkEndpointGroupsScopedList>]
        attr_accessor :items
      
        # [Output Only] The resource type, which is always compute#
        # networkEndpointGroupAggregatedList for aggregated lists of network endpoint
        # groups.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Unreachable resources.
        # Corresponds to the JSON property `unreachables`
        # @return [Array<String>]
        attr_accessor :unreachables
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::NetworkEndpointGroupAggregatedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @unreachables = args[:unreachables] if args.key?(:unreachables)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::NetworkEndpointGroupAggregatedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Configuration for an App Engine network endpoint group (NEG). The service is
      # optional, may be provided explicitly or in the URL mask. The version is
      # optional and can only be provided explicitly or in the URL mask when service
      # is present.
      # Note: App Engine service must be in the same project and located in the same
      # region as the Serverless NEG.
      class NetworkEndpointGroupAppEngine
        include Google::Apis::Core::Hashable
      
        # Optional serving service.
        # The service name is case-sensitive and must be 1-63 characters long.
        # Example value: "default", "my-service".
        # Corresponds to the JSON property `service`
        # @return [String]
        attr_accessor :service
      
        # A template to parse service and version fields from a request URL. URL mask
        # allows for routing to multiple App Engine services without having to create
        # multiple Network Endpoint Groups and backend services.
        # For example, the request URLs "foo1-dot-appname.appspot.com/v1" and "foo1-dot-
        # appname.appspot.com/v2" can be backed by the same Serverless NEG with URL mask
        # "-dot-appname.appspot.com/". The URL mask will parse them to ` service = "foo1"
        # , version = "v1" ` and ` service = "foo1", version = "v2" ` respectively.
        # Corresponds to the JSON property `urlMask`
        # @return [String]
        attr_accessor :url_mask
      
        # Optional serving version.
        # The version name is case-sensitive and must be 1-100 characters long.
        # Example value: "v1", "v2".
        # Corresponds to the JSON property `version`
        # @return [String]
        attr_accessor :version
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @service = args[:service] if args.key?(:service)
          @url_mask = args[:url_mask] if args.key?(:url_mask)
          @version = args[:version] if args.key?(:version)
        end
      end
      
      # Configuration for a Cloud Function network endpoint group (NEG). The function
      # must be provided explicitly or in the URL mask.
      # Note: Cloud Function must be in the same project and located in the same
      # region as the Serverless NEG.
      class NetworkEndpointGroupCloudFunction
        include Google::Apis::Core::Hashable
      
        # A user-defined name of the Cloud Function.
        # The function name is case-sensitive and must be 1-63 characters long.
        # Example value: "func1".
        # Corresponds to the JSON property `function`
        # @return [String]
        attr_accessor :function
      
        # A template to parse function field from a request URL. URL mask allows for
        # routing to multiple Cloud Functions without having to create multiple Network
        # Endpoint Groups and backend services.
        # For example, request URLs "mydomain.com/function1" and "mydomain.com/function2"
        # can be backed by the same Serverless NEG with URL mask "/". The URL mask will
        # parse them to ` function = "function1" ` and ` function = "function2" `
        # respectively.
        # Corresponds to the JSON property `urlMask`
        # @return [String]
        attr_accessor :url_mask
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @function = args[:function] if args.key?(:function)
          @url_mask = args[:url_mask] if args.key?(:url_mask)
        end
      end
      
      # Configuration for a Cloud Run network endpoint group (NEG). The service must
      # be provided explicitly or in the URL mask. The tag is optional, may be
      # provided explicitly or in the URL mask.
      # Note: Cloud Run service must be in the same project and located in the same
      # region as the Serverless NEG.
      class NetworkEndpointGroupCloudRun
        include Google::Apis::Core::Hashable
      
        # Cloud Run service is the main resource of Cloud Run.
        # The service must be 1-63 characters long, and comply with RFC1035.
        # Example value: "run-service".
        # Corresponds to the JSON property `service`
        # @return [String]
        attr_accessor :service
      
        # Optional Cloud Run tag represents the "named-revision" to provide additional
        # fine-grained traffic routing information.
        # The tag must be 1-63 characters long, and comply with RFC1035.
        # Example value: "revision-0010".
        # Corresponds to the JSON property `tag`
        # @return [String]
        attr_accessor :tag
      
        # A template to parse service and tag fields from a request URL. URL mask allows
        # for routing to multiple Run services without having to create multiple network
        # endpoint groups and backend services.
        # For example, request URLs "foo1.domain.com/bar1" and "foo1.domain.com/bar2"
        # can be backed by the same Serverless Network Endpoint Group (NEG) with URL
        # mask ".domain.com/". The URL mask will parse them to ` service="bar1", tag="
        # foo1" ` and ` service="bar2", tag="foo2" ` respectively.
        # Corresponds to the JSON property `urlMask`
        # @return [String]
        attr_accessor :url_mask
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @service = args[:service] if args.key?(:service)
          @tag = args[:tag] if args.key?(:tag)
          @url_mask = args[:url_mask] if args.key?(:url_mask)
        end
      end
      
      # Load balancing specific fields for network endpoint group.
      class NetworkEndpointGroupLbNetworkEndpointGroup
        include Google::Apis::Core::Hashable
      
        # The default port used if the port number is not specified in the network
        # endpoint. [Deprecated] This field is deprecated.
        # Corresponds to the JSON property `defaultPort`
        # @return [Fixnum]
        attr_accessor :default_port
      
        # The URL of the network to which all network endpoints in the NEG belong. Uses "
        # default" project network if unspecified. [Deprecated] This field is deprecated.
        # Corresponds to the JSON property `network`
        # @return [String]
        attr_accessor :network
      
        # Optional URL of the subnetwork to which all network endpoints in the NEG
        # belong. [Deprecated] This field is deprecated.
        # Corresponds to the JSON property `subnetwork`
        # @return [String]
        attr_accessor :subnetwork
      
        # [Output Only] The URL of the zone where the network endpoint group is located.
        # [Deprecated] This field is deprecated.
        # Corresponds to the JSON property `zone`
        # @return [String]
        attr_accessor :zone
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @default_port = args[:default_port] if args.key?(:default_port)
          @network = args[:network] if args.key?(:network)
          @subnetwork = args[:subnetwork] if args.key?(:subnetwork)
          @zone = args[:zone] if args.key?(:zone)
        end
      end
      
      # 
      class NetworkEndpointGroupList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of NetworkEndpointGroup resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::NetworkEndpointGroup>]
        attr_accessor :items
      
        # [Output Only] The resource type, which is always compute#
        # networkEndpointGroupList for network endpoint group lists.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::NetworkEndpointGroupList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::NetworkEndpointGroupList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class NetworkEndpointGroupsAttachEndpointsRequest
        include Google::Apis::Core::Hashable
      
        # The list of network endpoints to be attached.
        # Corresponds to the JSON property `networkEndpoints`
        # @return [Array<Google::Apis::ComputeAlpha::NetworkEndpoint>]
        attr_accessor :network_endpoints
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @network_endpoints = args[:network_endpoints] if args.key?(:network_endpoints)
        end
      end
      
      # 
      class NetworkEndpointGroupsDetachEndpointsRequest
        include Google::Apis::Core::Hashable
      
        # The list of network endpoints to be detached.
        # Corresponds to the JSON property `networkEndpoints`
        # @return [Array<Google::Apis::ComputeAlpha::NetworkEndpoint>]
        attr_accessor :network_endpoints
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @network_endpoints = args[:network_endpoints] if args.key?(:network_endpoints)
        end
      end
      
      # 
      class NetworkEndpointGroupsListEndpointsRequest
        include Google::Apis::Core::Hashable
      
        # Optional list of endpoints to query. This is a more efficient but also limited
        # version of filter parameter. Endpoints in the filter must have ip_address and
        # port fields populated, other fields are not supported.
        # Corresponds to the JSON property `endpointFilters`
        # @return [Array<Google::Apis::ComputeAlpha::NetworkEndpointGroupsListEndpointsRequestNetworkEndpointFilter>]
        attr_accessor :endpoint_filters
      
        # Optional query parameter for showing the health status of each network
        # endpoint. Valid options are SKIP or SHOW. If you don't specify this parameter,
        # the health status of network endpoints will not be provided.
        # Corresponds to the JSON property `healthStatus`
        # @return [String]
        attr_accessor :health_status
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @endpoint_filters = args[:endpoint_filters] if args.key?(:endpoint_filters)
          @health_status = args[:health_status] if args.key?(:health_status)
        end
      end
      
      # 
      class NetworkEndpointGroupsListEndpointsRequestNetworkEndpointFilter
        include Google::Apis::Core::Hashable
      
        # The network endpoint.
        # Corresponds to the JSON property `networkEndpoint`
        # @return [Google::Apis::ComputeAlpha::NetworkEndpoint]
        attr_accessor :network_endpoint
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @network_endpoint = args[:network_endpoint] if args.key?(:network_endpoint)
        end
      end
      
      # 
      class NetworkEndpointGroupsListNetworkEndpoints
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of NetworkEndpointWithHealthStatus resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::NetworkEndpointWithHealthStatus>]
        attr_accessor :items
      
        # [Output Only] The resource type, which is always compute#
        # networkEndpointGroupsListNetworkEndpoints for the list of network endpoints in
        # the specified network endpoint group.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::NetworkEndpointGroupsListNetworkEndpoints::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::NetworkEndpointGroupsListNetworkEndpoints::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class NetworkEndpointGroupsScopedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] The list of network endpoint groups that are contained in this
        # scope.
        # Corresponds to the JSON property `networkEndpointGroups`
        # @return [Array<Google::Apis::ComputeAlpha::NetworkEndpointGroup>]
        attr_accessor :network_endpoint_groups
      
        # [Output Only] An informational warning that replaces the list of network
        # endpoint groups when the list is empty.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::NetworkEndpointGroupsScopedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @network_endpoint_groups = args[:network_endpoint_groups] if args.key?(:network_endpoint_groups)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] An informational warning that replaces the list of network
        # endpoint groups when the list is empty.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::NetworkEndpointGroupsScopedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class NetworkEndpointWithHealthStatus
        include Google::Apis::Core::Hashable
      
        # [Output only] The health status of network endpoint;
        # Corresponds to the JSON property `healths`
        # @return [Array<Google::Apis::ComputeAlpha::HealthStatusForNetworkEndpoint>]
        attr_accessor :healths
      
        # The network endpoint.
        # Corresponds to the JSON property `networkEndpoint`
        # @return [Google::Apis::ComputeAlpha::NetworkEndpoint]
        attr_accessor :network_endpoint
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @healths = args[:healths] if args.key?(:healths)
          @network_endpoint = args[:network_endpoint] if args.key?(:network_endpoint)
        end
      end
      
      # A network interface resource attached to an instance.
      class NetworkInterface
        include Google::Apis::Core::Hashable
      
        # An array of configurations for this interface. Currently, only one access
        # config, ONE_TO_ONE_NAT, is supported. If there are no accessConfigs specified,
        # then this instance will have no external internet access.
        # Corresponds to the JSON property `accessConfigs`
        # @return [Array<Google::Apis::ComputeAlpha::AccessConfig>]
        attr_accessor :access_configs
      
        # An array of alias IP ranges for this network interface. You can only specify
        # this field for network interfaces in VPC networks.
        # Corresponds to the JSON property `aliasIpRanges`
        # @return [Array<Google::Apis::ComputeAlpha::AliasIpRange>]
        attr_accessor :alias_ip_ranges
      
        # Fingerprint hash of contents stored in this network interface. This field will
        # be ignored when inserting an Instance or adding a NetworkInterface. An up-to-
        # date fingerprint must be provided in order to update the NetworkInterface,
        # otherwise the request will fail with error 412 conditionNotMet.
        # Corresponds to the JSON property `fingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :fingerprint
      
        # [Output Only] The prefix length of the primary internal IPv6 range.
        # Corresponds to the JSON property `internalIpv6PrefixLength`
        # @return [Fixnum]
        attr_accessor :internal_ipv6_prefix_length
      
        # An array of IPv6 access configurations for this interface. Currently, only one
        # IPv6 access config, DIRECT_IPV6, is supported. If there is no ipv6AccessConfig
        # specified, then this instance will have no external IPv6 Internet access.
        # Corresponds to the JSON property `ipv6AccessConfigs`
        # @return [Array<Google::Apis::ComputeAlpha::AccessConfig>]
        attr_accessor :ipv6_access_configs
      
        # [Output Only] One of EXTERNAL, INTERNAL to indicate whether the IP can be
        # accessed from the Internet. This field is always inherited from its subnetwork.
        # Valid only if stackType is IPV4_IPV6.
        # Corresponds to the JSON property `ipv6AccessType`
        # @return [String]
        attr_accessor :ipv6_access_type
      
        # [Output Only] An IPv6 internal network address for this network interface.
        # Corresponds to the JSON property `ipv6Address`
        # @return [String]
        attr_accessor :ipv6_address
      
        # [Output Only] Type of the resource. Always compute#networkInterface for
        # network interfaces.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] The name of the network interface, which is generated by the
        # server. For network devices, these are eth0, eth1, etc.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # URL of the network resource for this instance. When creating an instance, if
        # neither the network nor the subnetwork is specified, the default network
        # global/networks/default is used; if the network is not specified but the
        # subnetwork is specified, the network is inferred.
        # If you specify this property, you can specify the network as a full or partial
        # URL. For example, the following are all valid URLs:
        # - https://www.googleapis.com/compute/v1/projects/project/global/networks/
        # network
        # - projects/project/global/networks/network
        # - global/networks/default
        # Corresponds to the JSON property `network`
        # @return [String]
        attr_accessor :network
      
        # An IPv4 internal IP address to assign to the instance for this network
        # interface. If not specified by the user, an unused internal IP is assigned by
        # the system.
        # Corresponds to the JSON property `networkIP`
        # @return [String]
        attr_accessor :network_ip
      
        # The type of vNIC to be used on this interface. This may be gVNIC or VirtioNet.
        # Corresponds to the JSON property `nicType`
        # @return [String]
        attr_accessor :nic_type
      
        # The networking queue count that's specified by users for the network interface.
        # Both Rx and Tx queues will be set to this number. It'll be empty if not
        # specified by the users.
        # Corresponds to the JSON property `queueCount`
        # @return [Fixnum]
        attr_accessor :queue_count
      
        # The stack type for this network interface to identify whether the IPv6 feature
        # is enabled or not. If not specified, IPV4_ONLY will be used.
        # This field can be both set at instance creation and update network interface
        # operations.
        # Corresponds to the JSON property `stackType`
        # @return [String]
        attr_accessor :stack_type
      
        # The URL of the Subnetwork resource for this instance. If the network resource
        # is in legacy mode, do not specify this field. If the network is in auto subnet
        # mode, specifying the subnetwork is optional. If the network is in custom
        # subnet mode, specifying the subnetwork is required. If you specify this field,
        # you can specify the subnetwork as a full or partial URL. For example, the
        # following are all valid URLs:
        # - https://www.googleapis.com/compute/v1/projects/project/regions/region/
        # subnetworks/subnetwork
        # - regions/region/subnetworks/subnetwork
        # Corresponds to the JSON property `subnetwork`
        # @return [String]
        attr_accessor :subnetwork
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @access_configs = args[:access_configs] if args.key?(:access_configs)
          @alias_ip_ranges = args[:alias_ip_ranges] if args.key?(:alias_ip_ranges)
          @fingerprint = args[:fingerprint] if args.key?(:fingerprint)
          @internal_ipv6_prefix_length = args[:internal_ipv6_prefix_length] if args.key?(:internal_ipv6_prefix_length)
          @ipv6_access_configs = args[:ipv6_access_configs] if args.key?(:ipv6_access_configs)
          @ipv6_access_type = args[:ipv6_access_type] if args.key?(:ipv6_access_type)
          @ipv6_address = args[:ipv6_address] if args.key?(:ipv6_address)
          @kind = args[:kind] if args.key?(:kind)
          @name = args[:name] if args.key?(:name)
          @network = args[:network] if args.key?(:network)
          @network_ip = args[:network_ip] if args.key?(:network_ip)
          @nic_type = args[:nic_type] if args.key?(:nic_type)
          @queue_count = args[:queue_count] if args.key?(:queue_count)
          @stack_type = args[:stack_type] if args.key?(:stack_type)
          @subnetwork = args[:subnetwork] if args.key?(:subnetwork)
        end
      end
      
      # Contains a list of networks.
      class NetworkList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of Network resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::Network>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#networkList for lists of
        # networks.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::NetworkList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::NetworkList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # A network peering attached to a network resource. The message includes the
      # peering name, peer network, peering state, and a flag indicating whether
      # Google Compute Engine should automatically create routes for the peering.
      class NetworkPeering
        include Google::Apis::Core::Hashable
      
        # Whether Cloud Routers in this network can automatically advertise subnets from
        # the peer network.
        # Corresponds to the JSON property `advertisePeerSubnetsViaRouters`
        # @return [Boolean]
        attr_accessor :advertise_peer_subnets_via_routers
        alias_method :advertise_peer_subnets_via_routers?, :advertise_peer_subnets_via_routers
      
        # This field will be deprecated soon. Use the exchange_subnet_routes field
        # instead. Indicates whether full mesh connectivity is created and managed
        # automatically between peered networks. Currently this field should always be
        # true since Google Compute Engine will automatically create and manage
        # subnetwork routes between two networks when peering state is ACTIVE.
        # Corresponds to the JSON property `autoCreateRoutes`
        # @return [Boolean]
        attr_accessor :auto_create_routes
        alias_method :auto_create_routes?, :auto_create_routes
      
        # Indicates whether full mesh connectivity is created and managed automatically
        # between peered networks. Currently this field should always be true since
        # Google Compute Engine will automatically create and manage subnetwork routes
        # between two networks when peering state is ACTIVE.
        # Corresponds to the JSON property `exchangeSubnetRoutes`
        # @return [Boolean]
        attr_accessor :exchange_subnet_routes
        alias_method :exchange_subnet_routes?, :exchange_subnet_routes
      
        # Whether to export the custom routes to peer network.
        # Corresponds to the JSON property `exportCustomRoutes`
        # @return [Boolean]
        attr_accessor :export_custom_routes
        alias_method :export_custom_routes?, :export_custom_routes
      
        # Whether subnet routes with public IP range are exported. The default value is
        # true, all subnet routes are exported. The IPv4 special-use ranges (https://en.
        # wikipedia.org/wiki/IPv4#Special_addresses) are always exported to peers and
        # are not controlled by this field.
        # Corresponds to the JSON property `exportSubnetRoutesWithPublicIp`
        # @return [Boolean]
        attr_accessor :export_subnet_routes_with_public_ip
        alias_method :export_subnet_routes_with_public_ip?, :export_subnet_routes_with_public_ip
      
        # Whether to import the custom routes from peer network.
        # Corresponds to the JSON property `importCustomRoutes`
        # @return [Boolean]
        attr_accessor :import_custom_routes
        alias_method :import_custom_routes?, :import_custom_routes
      
        # Whether subnet routes with public IP range are imported. The default value is
        # false. The IPv4 special-use ranges (https://en.wikipedia.org/wiki/IPv4#
        # Special_addresses) are always imported from peers and are not controlled by
        # this field.
        # Corresponds to the JSON property `importSubnetRoutesWithPublicIp`
        # @return [Boolean]
        attr_accessor :import_subnet_routes_with_public_ip
        alias_method :import_subnet_routes_with_public_ip?, :import_subnet_routes_with_public_ip
      
        # Name of this peering. Provided by the client when the peering is created. The
        # name must comply with RFC1035. Specifically, the name must be 1-63 characters
        # long and match regular expression `[a-z]([-a-z0-9]*[a-z0-9])?`. The first
        # character must be a lowercase letter, and all the following characters must be
        # a dash, lowercase letter, or digit, except the last character, which cannot be
        # a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # The URL of the peer network. It can be either full URL or partial URL. The
        # peer network may belong to a different project. If the partial URL does not
        # contain project, it is assumed that the peer network is in the same project as
        # the current network.
        # Corresponds to the JSON property `network`
        # @return [String]
        attr_accessor :network
      
        # Maximum Transmission Unit in bytes.
        # Corresponds to the JSON property `peerMtu`
        # @return [Fixnum]
        attr_accessor :peer_mtu
      
        # [Output Only] State for the peering, either `ACTIVE` or `INACTIVE`. The
        # peering is `ACTIVE` when there's a matching configuration in the peer network.
        # Corresponds to the JSON property `state`
        # @return [String]
        attr_accessor :state
      
        # [Output Only] Details about the current state of the peering.
        # Corresponds to the JSON property `stateDetails`
        # @return [String]
        attr_accessor :state_details
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @advertise_peer_subnets_via_routers = args[:advertise_peer_subnets_via_routers] if args.key?(:advertise_peer_subnets_via_routers)
          @auto_create_routes = args[:auto_create_routes] if args.key?(:auto_create_routes)
          @exchange_subnet_routes = args[:exchange_subnet_routes] if args.key?(:exchange_subnet_routes)
          @export_custom_routes = args[:export_custom_routes] if args.key?(:export_custom_routes)
          @export_subnet_routes_with_public_ip = args[:export_subnet_routes_with_public_ip] if args.key?(:export_subnet_routes_with_public_ip)
          @import_custom_routes = args[:import_custom_routes] if args.key?(:import_custom_routes)
          @import_subnet_routes_with_public_ip = args[:import_subnet_routes_with_public_ip] if args.key?(:import_subnet_routes_with_public_ip)
          @name = args[:name] if args.key?(:name)
          @network = args[:network] if args.key?(:network)
          @peer_mtu = args[:peer_mtu] if args.key?(:peer_mtu)
          @state = args[:state] if args.key?(:state)
          @state_details = args[:state_details] if args.key?(:state_details)
        end
      end
      
      # 
      class NetworkPerformanceConfig
        include Google::Apis::Core::Hashable
      
        # 
        # Corresponds to the JSON property `externalIpEgressBandwidthTier`
        # @return [String]
        attr_accessor :external_ip_egress_bandwidth_tier
      
        # 
        # Corresponds to the JSON property `totalEgressBandwidthTier`
        # @return [String]
        attr_accessor :total_egress_bandwidth_tier
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @external_ip_egress_bandwidth_tier = args[:external_ip_egress_bandwidth_tier] if args.key?(:external_ip_egress_bandwidth_tier)
          @total_egress_bandwidth_tier = args[:total_egress_bandwidth_tier] if args.key?(:total_egress_bandwidth_tier)
        end
      end
      
      # A routing configuration attached to a network resource. The message includes
      # the list of routers associated with the network, and a flag indicating the
      # type of routing behavior to enforce network-wide.
      class NetworkRoutingConfig
        include Google::Apis::Core::Hashable
      
        # The network-wide routing mode to use. If set to REGIONAL, this network's Cloud
        # Routers will only advertise routes with subnets of this network in the same
        # region as the router. If set to GLOBAL, this network's Cloud Routers will
        # advertise routes with all subnets of this network, across regions.
        # Corresponds to the JSON property `routingMode`
        # @return [String]
        attr_accessor :routing_mode
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @routing_mode = args[:routing_mode] if args.key?(:routing_mode)
        end
      end
      
      # 
      class NetworksAddPeeringRequest
        include Google::Apis::Core::Hashable
      
        # This field will be deprecated soon. Use exchange_subnet_routes in
        # network_peering instead. Indicates whether full mesh connectivity is created
        # and managed automatically between peered networks. Currently this field should
        # always be true since Google Compute Engine will automatically create and
        # manage subnetwork routes between two networks when peering state is ACTIVE.
        # Corresponds to the JSON property `autoCreateRoutes`
        # @return [Boolean]
        attr_accessor :auto_create_routes
        alias_method :auto_create_routes?, :auto_create_routes
      
        # This field will be deprecated soon. Use export_custom_routes in
        # network_peering instead. Whether to export the custom routes to peer network.
        # Corresponds to the JSON property `exportCustomRoutes`
        # @return [Boolean]
        attr_accessor :export_custom_routes
        alias_method :export_custom_routes?, :export_custom_routes
      
        # This field will be deprecated soon. Use import_custom_routes in
        # network_peering instead. Whether to import the custom routes from peer network.
        # Corresponds to the JSON property `importCustomRoutes`
        # @return [Boolean]
        attr_accessor :import_custom_routes
        alias_method :import_custom_routes?, :import_custom_routes
      
        # Name of the peering, which should conform to RFC1035.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # A network peering attached to a network resource. The message includes the
        # peering name, peer network, peering state, and a flag indicating whether
        # Google Compute Engine should automatically create routes for the peering.
        # Corresponds to the JSON property `networkPeering`
        # @return [Google::Apis::ComputeAlpha::NetworkPeering]
        attr_accessor :network_peering
      
        # URL of the peer network. It can be either full URL or partial URL. The peer
        # network may belong to a different project. If the partial URL does not contain
        # project, it is assumed that the peer network is in the same project as the
        # current network.
        # Corresponds to the JSON property `peerNetwork`
        # @return [String]
        attr_accessor :peer_network
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @auto_create_routes = args[:auto_create_routes] if args.key?(:auto_create_routes)
          @export_custom_routes = args[:export_custom_routes] if args.key?(:export_custom_routes)
          @import_custom_routes = args[:import_custom_routes] if args.key?(:import_custom_routes)
          @name = args[:name] if args.key?(:name)
          @network_peering = args[:network_peering] if args.key?(:network_peering)
          @peer_network = args[:peer_network] if args.key?(:peer_network)
        end
      end
      
      # 
      class NetworksGetEffectiveFirewallsResponse
        include Google::Apis::Core::Hashable
      
        # Effective firewalls from firewall policy.
        # Corresponds to the JSON property `firewallPolicys`
        # @return [Array<Google::Apis::ComputeAlpha::NetworksGetEffectiveFirewallsResponseEffectiveFirewallPolicy>]
        attr_accessor :firewall_policys
      
        # Effective firewalls on the network.
        # Corresponds to the JSON property `firewalls`
        # @return [Array<Google::Apis::ComputeAlpha::Firewall>]
        attr_accessor :firewalls
      
        # Effective firewalls from organization policies.
        # Corresponds to the JSON property `organizationFirewalls`
        # @return [Array<Google::Apis::ComputeAlpha::NetworksGetEffectiveFirewallsResponseOrganizationFirewallPolicy>]
        attr_accessor :organization_firewalls
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @firewall_policys = args[:firewall_policys] if args.key?(:firewall_policys)
          @firewalls = args[:firewalls] if args.key?(:firewalls)
          @organization_firewalls = args[:organization_firewalls] if args.key?(:organization_firewalls)
        end
      end
      
      # 
      class NetworksGetEffectiveFirewallsResponseEffectiveFirewallPolicy
        include Google::Apis::Core::Hashable
      
        # [Output Only] The display name of the firewall policy.
        # Corresponds to the JSON property `displayName`
        # @return [String]
        attr_accessor :display_name
      
        # [Output Only] The name of the firewall policy.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # The rules that apply to the network.
        # Corresponds to the JSON property `rules`
        # @return [Array<Google::Apis::ComputeAlpha::FirewallPolicyRule>]
        attr_accessor :rules
      
        # [Output Only] The type of the firewall policy.
        # Corresponds to the JSON property `type`
        # @return [String]
        attr_accessor :type
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @display_name = args[:display_name] if args.key?(:display_name)
          @name = args[:name] if args.key?(:name)
          @rules = args[:rules] if args.key?(:rules)
          @type = args[:type] if args.key?(:type)
        end
      end
      
      # A pruned SecurityPolicy containing ID and any applicable firewall rules.
      class NetworksGetEffectiveFirewallsResponseOrganizationFirewallPolicy
        include Google::Apis::Core::Hashable
      
        # [Output Only] The unique identifier for the security policy. This identifier
        # is defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # The rules that apply to the network.
        # Corresponds to the JSON property `rules`
        # @return [Array<Google::Apis::ComputeAlpha::SecurityPolicyRule>]
        attr_accessor :rules
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @rules = args[:rules] if args.key?(:rules)
        end
      end
      
      # 
      class NetworksRemovePeeringRequest
        include Google::Apis::Core::Hashable
      
        # Name of the peering, which should conform to RFC1035.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @name = args[:name] if args.key?(:name)
        end
      end
      
      # 
      class NetworksUpdatePeeringRequest
        include Google::Apis::Core::Hashable
      
        # A network peering attached to a network resource. The message includes the
        # peering name, peer network, peering state, and a flag indicating whether
        # Google Compute Engine should automatically create routes for the peering.
        # Corresponds to the JSON property `networkPeering`
        # @return [Google::Apis::ComputeAlpha::NetworkPeering]
        attr_accessor :network_peering
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @network_peering = args[:network_peering] if args.key?(:network_peering)
        end
      end
      
      # Represent a sole-tenant Node Group resource.
      # A sole-tenant node is a physical server that is dedicated to hosting VM
      # instances only for your specific project. Use sole-tenant nodes to keep your
      # instances physically separated from instances in other projects, or to group
      # your instances together on the same host hardware. For more information, read
      # Sole-tenant nodes. (== resource_for `$api_version`.nodeGroups ==)
      class NodeGroup
        include Google::Apis::Core::Hashable
      
        # Specifies how autoscaling should behave.
        # Corresponds to the JSON property `autoscalingPolicy`
        # @return [Google::Apis::ComputeAlpha::NodeGroupAutoscalingPolicy]
        attr_accessor :autoscaling_policy
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # 
        # Corresponds to the JSON property `fingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :fingerprint
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] The type of the resource. Always compute#nodeGroup for node
        # group.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # An opaque location hint used to place the Node close to other resources. This
        # field is for use by internal tools that use the public API. The location hint
        # here on the NodeGroup overrides any location_hint present in the NodeTemplate.
        # Corresponds to the JSON property `locationHint`
        # @return [String]
        attr_accessor :location_hint
      
        # Specifies how to handle instances when a node in the group undergoes
        # maintenance. Set to one of: DEFAULT, RESTART_IN_PLACE, or
        # MIGRATE_WITHIN_NODE_GROUP. The default value is DEFAULT. For more information,
        # see  Maintenance policies.
        # Corresponds to the JSON property `maintenancePolicy`
        # @return [String]
        attr_accessor :maintenance_policy
      
        # Time window specified for daily maintenance operations. GCE's internal
        # maintenance will be performed within this window.
        # Corresponds to the JSON property `maintenanceWindow`
        # @return [Google::Apis::ComputeAlpha::NodeGroupMaintenanceWindow]
        attr_accessor :maintenance_window
      
        # The name of the resource, provided by the client when initially creating the
        # resource. The resource name must be 1-63 characters long, and comply with
        # RFC1035. Specifically, the name must be 1-63 characters long and match the
        # regular expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the first
        # character must be a lowercase letter, and all following characters must be a
        # dash, lowercase letter, or digit, except the last character, which cannot be a
        # dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # URL of the node template to create the node group from.
        # Corresponds to the JSON property `nodeTemplate`
        # @return [String]
        attr_accessor :node_template
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # [Output Only] The total number of nodes in the node group.
        # Corresponds to the JSON property `size`
        # @return [Fixnum]
        attr_accessor :size
      
        # 
        # Corresponds to the JSON property `status`
        # @return [String]
        attr_accessor :status
      
        # [Output Only] The name of the zone where the node group resides, such as us-
        # central1-a.
        # Corresponds to the JSON property `zone`
        # @return [String]
        attr_accessor :zone
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @autoscaling_policy = args[:autoscaling_policy] if args.key?(:autoscaling_policy)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @fingerprint = args[:fingerprint] if args.key?(:fingerprint)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @location_hint = args[:location_hint] if args.key?(:location_hint)
          @maintenance_policy = args[:maintenance_policy] if args.key?(:maintenance_policy)
          @maintenance_window = args[:maintenance_window] if args.key?(:maintenance_window)
          @name = args[:name] if args.key?(:name)
          @node_template = args[:node_template] if args.key?(:node_template)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @size = args[:size] if args.key?(:size)
          @status = args[:status] if args.key?(:status)
          @zone = args[:zone] if args.key?(:zone)
        end
      end
      
      # 
      class NodeGroupAggregatedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of NodeGroupsScopedList resources.
        # Corresponds to the JSON property `items`
        # @return [Hash<String,Google::Apis::ComputeAlpha::NodeGroupsScopedList>]
        attr_accessor :items
      
        # [Output Only] Type of resource.Always compute#nodeGroupAggregatedList for
        # aggregated lists of node groups.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Unreachable resources.
        # Corresponds to the JSON property `unreachables`
        # @return [Array<String>]
        attr_accessor :unreachables
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::NodeGroupAggregatedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @unreachables = args[:unreachables] if args.key?(:unreachables)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::NodeGroupAggregatedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class NodeGroupAutoscalingPolicy
        include Google::Apis::Core::Hashable
      
        # The maximum number of nodes that the group should have. Must be set if
        # autoscaling is enabled. Maximum value allowed is 100.
        # Corresponds to the JSON property `maxNodes`
        # @return [Fixnum]
        attr_accessor :max_nodes
      
        # The minimum number of nodes that the group should have.
        # Corresponds to the JSON property `minNodes`
        # @return [Fixnum]
        attr_accessor :min_nodes
      
        # The autoscaling mode. Set to one of: ON, OFF, or ONLY_SCALE_OUT. For more
        # information, see  Autoscaler modes.
        # Corresponds to the JSON property `mode`
        # @return [String]
        attr_accessor :mode
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @max_nodes = args[:max_nodes] if args.key?(:max_nodes)
          @min_nodes = args[:min_nodes] if args.key?(:min_nodes)
          @mode = args[:mode] if args.key?(:mode)
        end
      end
      
      # Contains a list of nodeGroups.
      class NodeGroupList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of NodeGroup resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::NodeGroup>]
        attr_accessor :items
      
        # [Output Only] Type of resource.Always compute#nodeGroupList for lists of node
        # groups.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::NodeGroupList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::NodeGroupList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Time window specified for daily maintenance operations. GCE's internal
      # maintenance will be performed within this window.
      class NodeGroupMaintenanceWindow
        include Google::Apis::Core::Hashable
      
        # [Output only] A predetermined duration for the window, automatically chosen to
        # be the smallest possible in the given scenario.
        # Corresponds to the JSON property `duration`
        # @return [String]
        attr_accessor :duration
      
        # A Duration represents a fixed-length span of time represented as a count of
        # seconds and fractions of seconds at nanosecond resolution. It is independent
        # of any calendar and concepts like "day" or "month". Range is approximately 10,
        # 000 years.
        # Corresponds to the JSON property `maintenanceDuration`
        # @return [Google::Apis::ComputeAlpha::Duration]
        attr_accessor :maintenance_duration
      
        # Start time of the window. This must be in UTC format that resolves to one of
        # 00:00, 04:00, 08:00, 12:00, 16:00, or 20:00. For example, both 13:00-5 and 08:
        # 00 are valid.
        # Corresponds to the JSON property `startTime`
        # @return [String]
        attr_accessor :start_time
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @duration = args[:duration] if args.key?(:duration)
          @maintenance_duration = args[:maintenance_duration] if args.key?(:maintenance_duration)
          @start_time = args[:start_time] if args.key?(:start_time)
        end
      end
      
      # 
      class NodeGroupNode
        include Google::Apis::Core::Hashable
      
        # Accelerators for this node.
        # Corresponds to the JSON property `accelerators`
        # @return [Array<Google::Apis::ComputeAlpha::AcceleratorConfig>]
        attr_accessor :accelerators
      
        # CPU overcommit.
        # Corresponds to the JSON property `cpuOvercommitType`
        # @return [String]
        attr_accessor :cpu_overcommit_type
      
        # Local disk configurations.
        # Corresponds to the JSON property `disks`
        # @return [Array<Google::Apis::ComputeAlpha::LocalDisk>]
        attr_accessor :disks
      
        # Instances scheduled on this node.
        # Corresponds to the JSON property `instances`
        # @return [Array<String>]
        attr_accessor :instances
      
        # The name of the node.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # The type of this node.
        # Corresponds to the JSON property `nodeType`
        # @return [String]
        attr_accessor :node_type
      
        # [Output Only] Reserved for future use.
        # Corresponds to the JSON property `satisfiesPzs`
        # @return [Boolean]
        attr_accessor :satisfies_pzs
        alias_method :satisfies_pzs?, :satisfies_pzs
      
        # Binding properties for the physical server.
        # Corresponds to the JSON property `serverBinding`
        # @return [Google::Apis::ComputeAlpha::ServerBinding]
        attr_accessor :server_binding
      
        # Server ID associated with this node.
        # Corresponds to the JSON property `serverId`
        # @return [String]
        attr_accessor :server_id
      
        # 
        # Corresponds to the JSON property `status`
        # @return [String]
        attr_accessor :status
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @accelerators = args[:accelerators] if args.key?(:accelerators)
          @cpu_overcommit_type = args[:cpu_overcommit_type] if args.key?(:cpu_overcommit_type)
          @disks = args[:disks] if args.key?(:disks)
          @instances = args[:instances] if args.key?(:instances)
          @name = args[:name] if args.key?(:name)
          @node_type = args[:node_type] if args.key?(:node_type)
          @satisfies_pzs = args[:satisfies_pzs] if args.key?(:satisfies_pzs)
          @server_binding = args[:server_binding] if args.key?(:server_binding)
          @server_id = args[:server_id] if args.key?(:server_id)
          @status = args[:status] if args.key?(:status)
        end
      end
      
      # 
      class NodeGroupsAddNodesRequest
        include Google::Apis::Core::Hashable
      
        # Count of additional nodes to be added to the node group.
        # Corresponds to the JSON property `additionalNodeCount`
        # @return [Fixnum]
        attr_accessor :additional_node_count
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @additional_node_count = args[:additional_node_count] if args.key?(:additional_node_count)
        end
      end
      
      # 
      class NodeGroupsDeleteNodesRequest
        include Google::Apis::Core::Hashable
      
        # Names of the nodes to delete.
        # Corresponds to the JSON property `nodes`
        # @return [Array<String>]
        attr_accessor :nodes
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @nodes = args[:nodes] if args.key?(:nodes)
        end
      end
      
      # 
      class NodeGroupsListNodes
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of Node resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::NodeGroupNode>]
        attr_accessor :items
      
        # [Output Only] The resource type, which is always compute.nodeGroupsListNodes
        # for the list of nodes in the specified node group.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::NodeGroupsListNodes::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::NodeGroupsListNodes::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class NodeGroupsScopedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] A list of node groups contained in this scope.
        # Corresponds to the JSON property `nodeGroups`
        # @return [Array<Google::Apis::ComputeAlpha::NodeGroup>]
        attr_accessor :node_groups
      
        # [Output Only] An informational warning that appears when the nodeGroup list is
        # empty.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::NodeGroupsScopedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @node_groups = args[:node_groups] if args.key?(:node_groups)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] An informational warning that appears when the nodeGroup list is
        # empty.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::NodeGroupsScopedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class NodeGroupsSetNodeTemplateRequest
        include Google::Apis::Core::Hashable
      
        # Full or partial URL of the node template resource to be updated for this node
        # group.
        # Corresponds to the JSON property `nodeTemplate`
        # @return [String]
        attr_accessor :node_template
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @node_template = args[:node_template] if args.key?(:node_template)
        end
      end
      
      # Represent a sole-tenant Node Template resource.
      # You can use a template to define properties for nodes in a node group. For
      # more information, read Creating node groups and instances. (== resource_for `$
      # api_version`.nodeTemplates ==)
      class NodeTemplate
        include Google::Apis::Core::Hashable
      
        # 
        # Corresponds to the JSON property `accelerators`
        # @return [Array<Google::Apis::ComputeAlpha::AcceleratorConfig>]
        attr_accessor :accelerators
      
        # CPU overcommit.
        # Corresponds to the JSON property `cpuOvercommitType`
        # @return [String]
        attr_accessor :cpu_overcommit_type
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # 
        # Corresponds to the JSON property `disks`
        # @return [Array<Google::Apis::ComputeAlpha::LocalDisk>]
        attr_accessor :disks
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] The type of the resource. Always compute#nodeTemplate for node
        # templates.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # The name of the resource, provided by the client when initially creating the
        # resource. The resource name must be 1-63 characters long, and comply with
        # RFC1035. Specifically, the name must be 1-63 characters long and match the
        # regular expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the first
        # character must be a lowercase letter, and all following characters must be a
        # dash, lowercase letter, or digit, except the last character, which cannot be a
        # dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # Labels to use for node affinity, which will be used in instance scheduling.
        # Corresponds to the JSON property `nodeAffinityLabels`
        # @return [Hash<String,String>]
        attr_accessor :node_affinity_labels
      
        # The node type to use for nodes group that are created from this template.
        # Corresponds to the JSON property `nodeType`
        # @return [String]
        attr_accessor :node_type
      
        # The flexible properties of the desired node type. Node groups that use this
        # node template will create nodes of a type that matches these properties.
        # This field is mutually exclusive with the node_type property; you can only
        # define one or the other, but not both.
        # Corresponds to the JSON property `nodeTypeFlexibility`
        # @return [Google::Apis::ComputeAlpha::NodeTemplateNodeTypeFlexibility]
        attr_accessor :node_type_flexibility
      
        # [Output Only] The name of the region where the node template resides, such as
        # us-central1.
        # Corresponds to the JSON property `region`
        # @return [String]
        attr_accessor :region
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # Sets the binding properties for the physical server. Valid values include:
        # - [Default] RESTART_NODE_ON_ANY_SERVER: Restarts VMs on any available physical
        # server
        # - RESTART_NODE_ON_MINIMAL_SERVER: Restarts VMs on the same physical server
        # whenever possible
        # See Sole-tenant node options for more information.
        # Corresponds to the JSON property `serverBinding`
        # @return [Google::Apis::ComputeAlpha::ServerBinding]
        attr_accessor :server_binding
      
        # [Output Only] The status of the node template. One of the following values:
        # CREATING, READY, and DELETING.
        # Corresponds to the JSON property `status`
        # @return [String]
        attr_accessor :status
      
        # [Output Only] An optional, human-readable explanation of the status.
        # Corresponds to the JSON property `statusMessage`
        # @return [String]
        attr_accessor :status_message
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @accelerators = args[:accelerators] if args.key?(:accelerators)
          @cpu_overcommit_type = args[:cpu_overcommit_type] if args.key?(:cpu_overcommit_type)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @disks = args[:disks] if args.key?(:disks)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @name = args[:name] if args.key?(:name)
          @node_affinity_labels = args[:node_affinity_labels] if args.key?(:node_affinity_labels)
          @node_type = args[:node_type] if args.key?(:node_type)
          @node_type_flexibility = args[:node_type_flexibility] if args.key?(:node_type_flexibility)
          @region = args[:region] if args.key?(:region)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @server_binding = args[:server_binding] if args.key?(:server_binding)
          @status = args[:status] if args.key?(:status)
          @status_message = args[:status_message] if args.key?(:status_message)
        end
      end
      
      # 
      class NodeTemplateAggregatedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of NodeTemplatesScopedList resources.
        # Corresponds to the JSON property `items`
        # @return [Hash<String,Google::Apis::ComputeAlpha::NodeTemplatesScopedList>]
        attr_accessor :items
      
        # [Output Only] Type of resource.Always compute#nodeTemplateAggregatedList for
        # aggregated lists of node templates.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Unreachable resources.
        # Corresponds to the JSON property `unreachables`
        # @return [Array<String>]
        attr_accessor :unreachables
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::NodeTemplateAggregatedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @unreachables = args[:unreachables] if args.key?(:unreachables)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::NodeTemplateAggregatedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Contains a list of node templates.
      class NodeTemplateList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of NodeTemplate resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::NodeTemplate>]
        attr_accessor :items
      
        # [Output Only] Type of resource.Always compute#nodeTemplateList for lists of
        # node templates.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::NodeTemplateList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::NodeTemplateList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class NodeTemplateNodeTypeFlexibility
        include Google::Apis::Core::Hashable
      
        # 
        # Corresponds to the JSON property `cpus`
        # @return [String]
        attr_accessor :cpus
      
        # 
        # Corresponds to the JSON property `localSsd`
        # @return [String]
        attr_accessor :local_ssd
      
        # 
        # Corresponds to the JSON property `memory`
        # @return [String]
        attr_accessor :memory
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @cpus = args[:cpus] if args.key?(:cpus)
          @local_ssd = args[:local_ssd] if args.key?(:local_ssd)
          @memory = args[:memory] if args.key?(:memory)
        end
      end
      
      # 
      class NodeTemplatesScopedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] A list of node templates contained in this scope.
        # Corresponds to the JSON property `nodeTemplates`
        # @return [Array<Google::Apis::ComputeAlpha::NodeTemplate>]
        attr_accessor :node_templates
      
        # [Output Only] An informational warning that appears when the node templates
        # list is empty.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::NodeTemplatesScopedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @node_templates = args[:node_templates] if args.key?(:node_templates)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] An informational warning that appears when the node templates
        # list is empty.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::NodeTemplatesScopedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Represent a sole-tenant Node Type resource.
      # Each node within a node group must have a node type. A node type specifies the
      # total amount of cores and memory for that node. Currently, the only available
      # node type is n1-node-96-624 node type that has 96 vCPUs and 624 GB of memory,
      # available in multiple zones. For more information read Node types. (==
      # resource_for `$api_version`.nodeTypes ==)
      class NodeType
        include Google::Apis::Core::Hashable
      
        # [Output Only] The CPU platform used by this node type.
        # Corresponds to the JSON property `cpuPlatform`
        # @return [String]
        attr_accessor :cpu_platform
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # Deprecation status for a public resource.
        # Corresponds to the JSON property `deprecated`
        # @return [Google::Apis::ComputeAlpha::DeprecationStatus]
        attr_accessor :deprecated
      
        # [Output Only] An optional textual description of the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # [Output Only] The number of virtual CPUs that are available to the node type.
        # Corresponds to the JSON property `guestCpus`
        # @return [Fixnum]
        attr_accessor :guest_cpus
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] The type of the resource. Always compute#nodeType for node types.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] Local SSD available to the node type, defined in GB.
        # Corresponds to the JSON property `localSsdGb`
        # @return [Fixnum]
        attr_accessor :local_ssd_gb
      
        # [Output Only] The amount of physical memory available to the node type,
        # defined in MB.
        # Corresponds to the JSON property `memoryMb`
        # @return [Fixnum]
        attr_accessor :memory_mb
      
        # [Output Only] Name of the resource.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # [Output Only] The name of the zone where the node type resides, such as us-
        # central1-a.
        # Corresponds to the JSON property `zone`
        # @return [String]
        attr_accessor :zone
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @cpu_platform = args[:cpu_platform] if args.key?(:cpu_platform)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @deprecated = args[:deprecated] if args.key?(:deprecated)
          @description = args[:description] if args.key?(:description)
          @guest_cpus = args[:guest_cpus] if args.key?(:guest_cpus)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @local_ssd_gb = args[:local_ssd_gb] if args.key?(:local_ssd_gb)
          @memory_mb = args[:memory_mb] if args.key?(:memory_mb)
          @name = args[:name] if args.key?(:name)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @zone = args[:zone] if args.key?(:zone)
        end
      end
      
      # 
      class NodeTypeAggregatedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of NodeTypesScopedList resources.
        # Corresponds to the JSON property `items`
        # @return [Hash<String,Google::Apis::ComputeAlpha::NodeTypesScopedList>]
        attr_accessor :items
      
        # [Output Only] Type of resource.Always compute#nodeTypeAggregatedList for
        # aggregated lists of node types.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Unreachable resources.
        # Corresponds to the JSON property `unreachables`
        # @return [Array<String>]
        attr_accessor :unreachables
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::NodeTypeAggregatedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @unreachables = args[:unreachables] if args.key?(:unreachables)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::NodeTypeAggregatedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Contains a list of node types.
      class NodeTypeList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of NodeType resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::NodeType>]
        attr_accessor :items
      
        # [Output Only] Type of resource.Always compute#nodeTypeList for lists of node
        # types.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::NodeTypeList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::NodeTypeList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class NodeTypesScopedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] A list of node types contained in this scope.
        # Corresponds to the JSON property `nodeTypes`
        # @return [Array<Google::Apis::ComputeAlpha::NodeType>]
        attr_accessor :node_types
      
        # [Output Only] An informational warning that appears when the node types list
        # is empty.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::NodeTypesScopedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @node_types = args[:node_types] if args.key?(:node_types)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] An informational warning that appears when the node types list
        # is empty.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::NodeTypesScopedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Represents a notification endpoint.
      # A notification endpoint resource defines an endpoint to receive notifications
      # when there are status changes detected by the associated health check service.
      # For more information, see  Health checks overview. (== resource_for `$
      # api_version`.notificationEndpoint ==) (== resource_for `$api_version`.
      # regionNotificationEndpoints ==)
      class NotificationEndpoint
        include Google::Apis::Core::Hashable
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # Represents a gRPC setting that describes one gRPC notification endpoint and
        # the retry duration attempting to send notification to this endpoint.
        # Corresponds to the JSON property `grpcSettings`
        # @return [Google::Apis::ComputeAlpha::NotificationEndpointGrpcSettings]
        attr_accessor :grpc_settings
      
        # [Output Only] A unique identifier for this resource type. The server generates
        # this identifier.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] Type of the resource. Always compute#notificationEndpoint for
        # notification endpoints.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # Name of the resource. Provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # [Output Only] URL of the region where the notification endpoint resides. This
        # field applies only to the regional resource. You must specify this field as
        # part of the HTTP request URL. It is not settable as a field in the request
        # body.
        # Corresponds to the JSON property `region`
        # @return [String]
        attr_accessor :region
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @grpc_settings = args[:grpc_settings] if args.key?(:grpc_settings)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @name = args[:name] if args.key?(:name)
          @region = args[:region] if args.key?(:region)
          @self_link = args[:self_link] if args.key?(:self_link)
        end
      end
      
      # Represents a gRPC setting that describes one gRPC notification endpoint and
      # the retry duration attempting to send notification to this endpoint.
      class NotificationEndpointGrpcSettings
        include Google::Apis::Core::Hashable
      
        # Optional. If specified, this field is used to set the authority header by the
        # sender of notifications. See https://tools.ietf.org/html/rfc7540#section-8.1.2.
        # 3
        # Corresponds to the JSON property `authority`
        # @return [String]
        attr_accessor :authority
      
        # Endpoint to which gRPC notifications are sent. This must be a valid gRPCLB DNS
        # name.
        # Corresponds to the JSON property `endpoint`
        # @return [String]
        attr_accessor :endpoint
      
        # Optional. If specified, this field is used to populate the "name" field in
        # gRPC requests.
        # Corresponds to the JSON property `payloadName`
        # @return [String]
        attr_accessor :payload_name
      
        # A Duration represents a fixed-length span of time represented as a count of
        # seconds and fractions of seconds at nanosecond resolution. It is independent
        # of any calendar and concepts like "day" or "month". Range is approximately 10,
        # 000 years.
        # Corresponds to the JSON property `resendInterval`
        # @return [Google::Apis::ComputeAlpha::Duration]
        attr_accessor :resend_interval
      
        # How much time (in seconds) is spent attempting notification retries until a
        # successful response is received. Default is 30s. Limit is 20m (1200s). Must be
        # a positive number.
        # Corresponds to the JSON property `retryDurationSec`
        # @return [Fixnum]
        attr_accessor :retry_duration_sec
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @authority = args[:authority] if args.key?(:authority)
          @endpoint = args[:endpoint] if args.key?(:endpoint)
          @payload_name = args[:payload_name] if args.key?(:payload_name)
          @resend_interval = args[:resend_interval] if args.key?(:resend_interval)
          @retry_duration_sec = args[:retry_duration_sec] if args.key?(:retry_duration_sec)
        end
      end
      
      # 
      class NotificationEndpointList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of NotificationEndpoint resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::NotificationEndpoint>]
        attr_accessor :items
      
        # [Output Only] Type of the resource. Always compute#notificationEndpoint for
        # notification endpoints.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::NotificationEndpointList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::NotificationEndpointList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Represents an Operation resource.
      # Google Compute Engine has three Operation resources:
      # * [Global](/compute/docs/reference/rest/`$api_version`/globalOperations) * [
      # Regional](/compute/docs/reference/rest/`$api_version`/regionOperations) * [
      # Zonal](/compute/docs/reference/rest/`$api_version`/zoneOperations)
      # You can use an operation resource to manage asynchronous API requests. For
      # more information, read Handling API responses.
      # Operations can be global, regional or zonal.
      # - For global operations, use the `globalOperations` resource.
      # - For regional operations, use the `regionOperations` resource.
      # - For zonal operations, use the `zonalOperations` resource.
      # For more information, read  Global, Regional, and Zonal Resources. (==
      # resource_for `$api_version`.globalOperations ==) (== resource_for `$
      # api_version`.regionOperations ==) (== resource_for `$api_version`.
      # zoneOperations ==)
      class Operation
        include Google::Apis::Core::Hashable
      
        # [Output Only] The value of `requestId` if you provided it in the request. Not
        # present otherwise.
        # Corresponds to the JSON property `clientOperationId`
        # @return [String]
        attr_accessor :client_operation_id
      
        # [Deprecated] This field is deprecated.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # [Output Only] A textual description of the operation, which is set when the
        # operation is created.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # [Output Only] The time that this operation was completed. This value is in
        # RFC3339 text format.
        # Corresponds to the JSON property `endTime`
        # @return [String]
        attr_accessor :end_time
      
        # [Output Only] If errors are generated during processing of the operation, this
        # field will be populated.
        # Corresponds to the JSON property `error`
        # @return [Google::Apis::ComputeAlpha::Operation::Error]
        attr_accessor :error
      
        # [Output Only] If the operation fails, this field contains the HTTP error
        # message that was returned, such as `NOT FOUND`.
        # Corresponds to the JSON property `httpErrorMessage`
        # @return [String]
        attr_accessor :http_error_message
      
        # [Output Only] If the operation fails, this field contains the HTTP error
        # status code that was returned. For example, a `404` means the resource was not
        # found.
        # Corresponds to the JSON property `httpErrorStatusCode`
        # @return [Fixnum]
        attr_accessor :http_error_status_code
      
        # [Output Only] The unique identifier for the operation. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] The time that this operation was requested. This value is in
        # RFC3339 text format.
        # Corresponds to the JSON property `insertTime`
        # @return [String]
        attr_accessor :insert_time
      
        # [Output Only] Type of the resource. Always `compute#operation` for Operation
        # resources.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] Name of the operation.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # [Output Only] The type of operation, such as `insert`, `update`, or `delete`,
        # and so on.
        # Corresponds to the JSON property `operationType`
        # @return [String]
        attr_accessor :operation_type
      
        # [Output Only] An optional progress indicator that ranges from 0 to 100. There
        # is no requirement that this be linear or support any granularity of operations.
        # This should not be used to guess when the operation will be complete. This
        # number should monotonically increase as the operation progresses.
        # Corresponds to the JSON property `progress`
        # @return [Fixnum]
        attr_accessor :progress
      
        # [Output Only] The URL of the region where the operation resides. Only
        # applicable when performing regional operations.
        # Corresponds to the JSON property `region`
        # @return [String]
        attr_accessor :region
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # [Output Only] The time that this operation was started by the server. This
        # value is in RFC3339 text format.
        # Corresponds to the JSON property `startTime`
        # @return [String]
        attr_accessor :start_time
      
        # [Output Only] The status of the operation, which can be one of the following: `
        # PENDING`, `RUNNING`, or `DONE`.
        # Corresponds to the JSON property `status`
        # @return [String]
        attr_accessor :status
      
        # [Output Only] An optional textual description of the current status of the
        # operation.
        # Corresponds to the JSON property `statusMessage`
        # @return [String]
        attr_accessor :status_message
      
        # [Output Only] The unique target ID, which identifies a specific incarnation of
        # the target resource.
        # Corresponds to the JSON property `targetId`
        # @return [Fixnum]
        attr_accessor :target_id
      
        # [Output Only] The URL of the resource that the operation modifies. For
        # operations related to creating a snapshot, this points to the persistent disk
        # that the snapshot was created from.
        # Corresponds to the JSON property `targetLink`
        # @return [String]
        attr_accessor :target_link
      
        # [Output Only] User who requested the operation, for example: `user@example.com`
        # .
        # Corresponds to the JSON property `user`
        # @return [String]
        attr_accessor :user
      
        # [Output Only] If warning messages are generated during processing of the
        # operation, this field will be populated.
        # Corresponds to the JSON property `warnings`
        # @return [Array<Google::Apis::ComputeAlpha::Operation::Warning>]
        attr_accessor :warnings
      
        # [Output Only] The URL of the zone where the operation resides. Only applicable
        # when performing per-zone operations.
        # Corresponds to the JSON property `zone`
        # @return [String]
        attr_accessor :zone
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @client_operation_id = args[:client_operation_id] if args.key?(:client_operation_id)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @end_time = args[:end_time] if args.key?(:end_time)
          @error = args[:error] if args.key?(:error)
          @http_error_message = args[:http_error_message] if args.key?(:http_error_message)
          @http_error_status_code = args[:http_error_status_code] if args.key?(:http_error_status_code)
          @id = args[:id] if args.key?(:id)
          @insert_time = args[:insert_time] if args.key?(:insert_time)
          @kind = args[:kind] if args.key?(:kind)
          @name = args[:name] if args.key?(:name)
          @operation_type = args[:operation_type] if args.key?(:operation_type)
          @progress = args[:progress] if args.key?(:progress)
          @region = args[:region] if args.key?(:region)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @start_time = args[:start_time] if args.key?(:start_time)
          @status = args[:status] if args.key?(:status)
          @status_message = args[:status_message] if args.key?(:status_message)
          @target_id = args[:target_id] if args.key?(:target_id)
          @target_link = args[:target_link] if args.key?(:target_link)
          @user = args[:user] if args.key?(:user)
          @warnings = args[:warnings] if args.key?(:warnings)
          @zone = args[:zone] if args.key?(:zone)
        end
        
        # [Output Only] If errors are generated during processing of the operation, this
        # field will be populated.
        class Error
          include Google::Apis::Core::Hashable
        
          # [Output Only] The array of errors encountered while processing this operation.
          # Corresponds to the JSON property `errors`
          # @return [Array<Google::Apis::ComputeAlpha::Operation::Error::Error>]
          attr_accessor :errors
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @errors = args[:errors] if args.key?(:errors)
          end
          
          # 
          class Error
            include Google::Apis::Core::Hashable
          
            # [Output Only] The error type identifier for this error.
            # Corresponds to the JSON property `code`
            # @return [String]
            attr_accessor :code
          
            # [Output Only] Indicates the field in the request that caused the error. This
            # property is optional.
            # Corresponds to the JSON property `location`
            # @return [String]
            attr_accessor :location
          
            # [Output Only] An optional, human-readable error message.
            # Corresponds to the JSON property `message`
            # @return [String]
            attr_accessor :message
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @code = args[:code] if args.key?(:code)
              @location = args[:location] if args.key?(:location)
              @message = args[:message] if args.key?(:message)
            end
          end
        end
        
        # 
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::Operation::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class OperationAggregatedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # [Output Only] A map of scoped operation lists.
        # Corresponds to the JSON property `items`
        # @return [Hash<String,Google::Apis::ComputeAlpha::OperationsScopedList>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always `compute#operationAggregatedList` for
        # aggregated lists of operations.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than `maxResults`, use the `
        # nextPageToken` as a value for the query parameter `pageToken` in the next list
        # request. Subsequent list requests will have their own `nextPageToken` to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Unreachable resources.
        # Corresponds to the JSON property `unreachables`
        # @return [Array<String>]
        attr_accessor :unreachables
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::OperationAggregatedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @unreachables = args[:unreachables] if args.key?(:unreachables)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::OperationAggregatedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Contains a list of Operation resources.
      class OperationList
        include Google::Apis::Core::Hashable
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # [Output Only] A list of Operation resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::Operation>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always `compute#operations` for Operations
        # resource.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than `maxResults`, use the `
        # nextPageToken` as a value for the query parameter `pageToken` in the next list
        # request. Subsequent list requests will have their own `nextPageToken` to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::OperationList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::OperationList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class OperationsScopedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] A list of operations contained in this scope.
        # Corresponds to the JSON property `operations`
        # @return [Array<Google::Apis::ComputeAlpha::Operation>]
        attr_accessor :operations
      
        # [Output Only] Informational warning which replaces the list of operations when
        # the list is empty.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::OperationsScopedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @operations = args[:operations] if args.key?(:operations)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning which replaces the list of operations when
        # the list is empty.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::OperationsScopedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class OrganizationSecurityPoliciesListAssociationsResponse
        include Google::Apis::Core::Hashable
      
        # A list of associations.
        # Corresponds to the JSON property `associations`
        # @return [Array<Google::Apis::ComputeAlpha::SecurityPolicyAssociation>]
        attr_accessor :associations
      
        # [Output Only] Type of securityPolicy associations. Always compute#
        # organizationSecurityPoliciesListAssociations for lists of securityPolicy
        # associations.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @associations = args[:associations] if args.key?(:associations)
          @kind = args[:kind] if args.key?(:kind)
        end
      end
      
      # [Deprecated] Configuration for the origin authentication method. Configuration
      # for the origin authentication method.
      class OriginAuthenticationMethod
        include Google::Apis::Core::Hashable
      
        # [Deprecated] JWT configuration for origin authentication. JWT configuration
        # for origin authentication.
        # Corresponds to the JSON property `jwt`
        # @return [Google::Apis::ComputeAlpha::Jwt]
        attr_accessor :jwt
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @jwt = args[:jwt] if args.key?(:jwt)
        end
      end
      
      # Settings controlling the eviction of unhealthy hosts from the load balancing
      # pool for the backend service.
      class OutlierDetection
        include Google::Apis::Core::Hashable
      
        # A Duration represents a fixed-length span of time represented as a count of
        # seconds and fractions of seconds at nanosecond resolution. It is independent
        # of any calendar and concepts like "day" or "month". Range is approximately 10,
        # 000 years.
        # Corresponds to the JSON property `baseEjectionTime`
        # @return [Google::Apis::ComputeAlpha::Duration]
        attr_accessor :base_ejection_time
      
        # Number of errors before a host is ejected from the connection pool. When the
        # backend host is accessed over HTTP, a 5xx return code qualifies as an error.
        # Defaults to 5.
        # Corresponds to the JSON property `consecutiveErrors`
        # @return [Fixnum]
        attr_accessor :consecutive_errors
      
        # The number of consecutive gateway failures (502, 503, 504 status or connection
        # errors that are mapped to one of those status codes) before a consecutive
        # gateway failure ejection occurs. Defaults to 3.
        # Corresponds to the JSON property `consecutiveGatewayFailure`
        # @return [Fixnum]
        attr_accessor :consecutive_gateway_failure
      
        # The percentage chance that a host will be actually ejected when an outlier
        # status is detected through consecutive 5xx. This setting can be used to
        # disable ejection or to ramp it up slowly. Defaults to 0.
        # Corresponds to the JSON property `enforcingConsecutiveErrors`
        # @return [Fixnum]
        attr_accessor :enforcing_consecutive_errors
      
        # The percentage chance that a host will be actually ejected when an outlier
        # status is detected through consecutive gateway failures. This setting can be
        # used to disable ejection or to ramp it up slowly. Defaults to 100.
        # Corresponds to the JSON property `enforcingConsecutiveGatewayFailure`
        # @return [Fixnum]
        attr_accessor :enforcing_consecutive_gateway_failure
      
        # The percentage chance that a host will be actually ejected when an outlier
        # status is detected through success rate statistics. This setting can be used
        # to disable ejection or to ramp it up slowly. Defaults to 100.
        # Corresponds to the JSON property `enforcingSuccessRate`
        # @return [Fixnum]
        attr_accessor :enforcing_success_rate
      
        # A Duration represents a fixed-length span of time represented as a count of
        # seconds and fractions of seconds at nanosecond resolution. It is independent
        # of any calendar and concepts like "day" or "month". Range is approximately 10,
        # 000 years.
        # Corresponds to the JSON property `interval`
        # @return [Google::Apis::ComputeAlpha::Duration]
        attr_accessor :interval
      
        # Maximum percentage of hosts in the load balancing pool for the backend service
        # that can be ejected. Defaults to 50%.
        # Corresponds to the JSON property `maxEjectionPercent`
        # @return [Fixnum]
        attr_accessor :max_ejection_percent
      
        # The number of hosts in a cluster that must have enough request volume to
        # detect success rate outliers. If the number of hosts is less than this setting,
        # outlier detection via success rate statistics is not performed for any host
        # in the cluster. Defaults to 5.
        # Corresponds to the JSON property `successRateMinimumHosts`
        # @return [Fixnum]
        attr_accessor :success_rate_minimum_hosts
      
        # The minimum number of total requests that must be collected in one interval (
        # as defined by the interval duration above) to include this host in success
        # rate based outlier detection. If the volume is lower than this setting,
        # outlier detection via success rate statistics is not performed for that host.
        # Defaults to 100.
        # Corresponds to the JSON property `successRateRequestVolume`
        # @return [Fixnum]
        attr_accessor :success_rate_request_volume
      
        # This factor is used to determine the ejection threshold for success rate
        # outlier ejection. The ejection threshold is the difference between the mean
        # success rate, and the product of this factor and the standard deviation of the
        # mean success rate: mean - (stdev * success_rate_stdev_factor). This factor is
        # divided by a thousand to get a double. That is, if the desired factor is 1.9,
        # the runtime value should be 1900. Defaults to 1900.
        # Corresponds to the JSON property `successRateStdevFactor`
        # @return [Fixnum]
        attr_accessor :success_rate_stdev_factor
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @base_ejection_time = args[:base_ejection_time] if args.key?(:base_ejection_time)
          @consecutive_errors = args[:consecutive_errors] if args.key?(:consecutive_errors)
          @consecutive_gateway_failure = args[:consecutive_gateway_failure] if args.key?(:consecutive_gateway_failure)
          @enforcing_consecutive_errors = args[:enforcing_consecutive_errors] if args.key?(:enforcing_consecutive_errors)
          @enforcing_consecutive_gateway_failure = args[:enforcing_consecutive_gateway_failure] if args.key?(:enforcing_consecutive_gateway_failure)
          @enforcing_success_rate = args[:enforcing_success_rate] if args.key?(:enforcing_success_rate)
          @interval = args[:interval] if args.key?(:interval)
          @max_ejection_percent = args[:max_ejection_percent] if args.key?(:max_ejection_percent)
          @success_rate_minimum_hosts = args[:success_rate_minimum_hosts] if args.key?(:success_rate_minimum_hosts)
          @success_rate_request_volume = args[:success_rate_request_volume] if args.key?(:success_rate_request_volume)
          @success_rate_stdev_factor = args[:success_rate_stdev_factor] if args.key?(:success_rate_stdev_factor)
        end
      end
      
      # Next free: 7
      class PacketIntervals
        include Google::Apis::Core::Hashable
      
        # Average observed inter-packet interval in milliseconds.
        # Corresponds to the JSON property `avgMs`
        # @return [Fixnum]
        attr_accessor :avg_ms
      
        # From how long ago in the past these intervals were observed.
        # Corresponds to the JSON property `duration`
        # @return [String]
        attr_accessor :duration
      
        # Maximum observed inter-packet interval in milliseconds.
        # Corresponds to the JSON property `maxMs`
        # @return [Fixnum]
        attr_accessor :max_ms
      
        # Minimum observed inter-packet interval in milliseconds.
        # Corresponds to the JSON property `minMs`
        # @return [Fixnum]
        attr_accessor :min_ms
      
        # Number of inter-packet intervals from which these statistics were derived.
        # Corresponds to the JSON property `numIntervals`
        # @return [Fixnum]
        attr_accessor :num_intervals
      
        # The type of packets for which inter-packet intervals were computed.
        # Corresponds to the JSON property `type`
        # @return [String]
        attr_accessor :type
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @avg_ms = args[:avg_ms] if args.key?(:avg_ms)
          @duration = args[:duration] if args.key?(:duration)
          @max_ms = args[:max_ms] if args.key?(:max_ms)
          @min_ms = args[:min_ms] if args.key?(:min_ms)
          @num_intervals = args[:num_intervals] if args.key?(:num_intervals)
          @type = args[:type] if args.key?(:type)
        end
      end
      
      # Represents a Packet Mirroring resource.
      # Packet Mirroring clones the traffic of specified instances in your Virtual
      # Private Cloud (VPC) network and forwards it to a collector destination, such
      # as an instance group of an internal TCP/UDP load balancer, for analysis or
      # examination. For more information about setting up Packet Mirroring, see Using
      # Packet Mirroring. (== resource_for `$api_version`.packetMirrorings ==)
      class PacketMirroring
        include Google::Apis::Core::Hashable
      
        # The Forwarding Rule resource of type loadBalancingScheme=INTERNAL that will be
        # used as collector for mirrored traffic. The specified forwarding rule must
        # have isMirroringCollector set to true.
        # Corresponds to the JSON property `collectorIlb`
        # @return [Google::Apis::ComputeAlpha::PacketMirroringForwardingRuleInfo]
        attr_accessor :collector_ilb
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # Indicates whether or not this packet mirroring takes effect. If set to FALSE,
        # this packet mirroring policy will not be enforced on the network.
        # The default is TRUE.
        # Corresponds to the JSON property `enable`
        # @return [String]
        attr_accessor :enable
      
        # Filter for mirrored traffic. If unspecified, all traffic is mirrored.
        # Corresponds to the JSON property `filter`
        # @return [Google::Apis::ComputeAlpha::PacketMirroringFilter]
        attr_accessor :filter
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] Type of the resource. Always compute#packetMirroring for packet
        # mirrorings.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # PacketMirroring mirroredResourceInfos. MirroredResourceInfo specifies a set of
        # mirrored VM instances, subnetworks and/or tags for which traffic from/to all
        # VM instances will be mirrored.
        # Corresponds to the JSON property `mirroredResources`
        # @return [Google::Apis::ComputeAlpha::PacketMirroringMirroredResourceInfo]
        attr_accessor :mirrored_resources
      
        # Name of the resource; provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # Specifies the mirrored VPC network. Only packets in this network will be
        # mirrored. All mirrored VMs should have a NIC in the given network. All
        # mirrored subnetworks should belong to the given network.
        # Corresponds to the JSON property `network`
        # @return [Google::Apis::ComputeAlpha::PacketMirroringNetworkInfo]
        attr_accessor :network
      
        # The priority of applying this configuration. Priority is used to break ties in
        # cases where there is more than one matching rule. In the case of two rules
        # that apply for a given Instance, the one with the lowest-numbered priority
        # value wins.
        # Default value is 1000. Valid range is 0 through 65535.
        # Corresponds to the JSON property `priority`
        # @return [Fixnum]
        attr_accessor :priority
      
        # [Output Only] URI of the region where the packetMirroring resides.
        # Corresponds to the JSON property `region`
        # @return [String]
        attr_accessor :region
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @collector_ilb = args[:collector_ilb] if args.key?(:collector_ilb)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @enable = args[:enable] if args.key?(:enable)
          @filter = args[:filter] if args.key?(:filter)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @mirrored_resources = args[:mirrored_resources] if args.key?(:mirrored_resources)
          @name = args[:name] if args.key?(:name)
          @network = args[:network] if args.key?(:network)
          @priority = args[:priority] if args.key?(:priority)
          @region = args[:region] if args.key?(:region)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
        end
      end
      
      # Contains a list of packetMirrorings.
      class PacketMirroringAggregatedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of PacketMirroring resources.
        # Corresponds to the JSON property `items`
        # @return [Hash<String,Google::Apis::ComputeAlpha::PacketMirroringsScopedList>]
        attr_accessor :items
      
        # Type of resource.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Unreachable resources.
        # Corresponds to the JSON property `unreachables`
        # @return [Array<String>]
        attr_accessor :unreachables
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::PacketMirroringAggregatedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @unreachables = args[:unreachables] if args.key?(:unreachables)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::PacketMirroringAggregatedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class PacketMirroringFilter
        include Google::Apis::Core::Hashable
      
        # Protocols that apply as filter on mirrored traffic. If no protocols are
        # specified, all traffic that matches the specified CIDR ranges is mirrored. If
        # neither cidrRanges nor IPProtocols is specified, all traffic is mirrored.
        # Corresponds to the JSON property `IPProtocols`
        # @return [Array<String>]
        attr_accessor :ip_protocols
      
        # IP CIDR ranges that apply as filter on the source (ingress) or destination (
        # egress) IP in the IP header. Only IPv4 is supported. If no ranges are
        # specified, all traffic that matches the specified IPProtocols is mirrored. If
        # neither cidrRanges nor IPProtocols is specified, all traffic is mirrored.
        # Corresponds to the JSON property `cidrRanges`
        # @return [Array<String>]
        attr_accessor :cidr_ranges
      
        # Direction of traffic to mirror, either INGRESS, EGRESS, or BOTH. The default
        # is BOTH.
        # Corresponds to the JSON property `direction`
        # @return [String]
        attr_accessor :direction
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @ip_protocols = args[:ip_protocols] if args.key?(:ip_protocols)
          @cidr_ranges = args[:cidr_ranges] if args.key?(:cidr_ranges)
          @direction = args[:direction] if args.key?(:direction)
        end
      end
      
      # 
      class PacketMirroringForwardingRuleInfo
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the forwarding rule; defined by the server.
        # Corresponds to the JSON property `canonicalUrl`
        # @return [String]
        attr_accessor :canonical_url
      
        # Resource URL to the forwarding rule representing the ILB configured as
        # destination of the mirrored traffic.
        # Corresponds to the JSON property `url`
        # @return [String]
        attr_accessor :url
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @canonical_url = args[:canonical_url] if args.key?(:canonical_url)
          @url = args[:url] if args.key?(:url)
        end
      end
      
      # Contains a list of PacketMirroring resources.
      class PacketMirroringList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of PacketMirroring resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::PacketMirroring>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#packetMirroring for
        # packetMirrorings.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::PacketMirroringList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::PacketMirroringList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class PacketMirroringMirroredResourceInfo
        include Google::Apis::Core::Hashable
      
        # A set of virtual machine instances that are being mirrored. They must live in
        # zones contained in the same region as this packetMirroring.
        # Note that this config will apply only to those network interfaces of the
        # Instances that belong to the network specified in this packetMirroring.
        # You may specify a maximum of 50 Instances.
        # Corresponds to the JSON property `instances`
        # @return [Array<Google::Apis::ComputeAlpha::PacketMirroringMirroredResourceInfoInstanceInfo>]
        attr_accessor :instances
      
        # A set of subnetworks for which traffic from/to all VM instances will be
        # mirrored. They must live in the same region as this packetMirroring.
        # You may specify a maximum of 5 subnetworks.
        # Corresponds to the JSON property `subnetworks`
        # @return [Array<Google::Apis::ComputeAlpha::PacketMirroringMirroredResourceInfoSubnetInfo>]
        attr_accessor :subnetworks
      
        # A set of mirrored tags. Traffic from/to all VM instances that have one or more
        # of these tags will be mirrored.
        # Corresponds to the JSON property `tags`
        # @return [Array<String>]
        attr_accessor :tags
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @instances = args[:instances] if args.key?(:instances)
          @subnetworks = args[:subnetworks] if args.key?(:subnetworks)
          @tags = args[:tags] if args.key?(:tags)
        end
      end
      
      # 
      class PacketMirroringMirroredResourceInfoInstanceInfo
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the instance; defined by the server.
        # Corresponds to the JSON property `canonicalUrl`
        # @return [String]
        attr_accessor :canonical_url
      
        # Resource URL to the virtual machine instance which is being mirrored.
        # Corresponds to the JSON property `url`
        # @return [String]
        attr_accessor :url
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @canonical_url = args[:canonical_url] if args.key?(:canonical_url)
          @url = args[:url] if args.key?(:url)
        end
      end
      
      # 
      class PacketMirroringMirroredResourceInfoSubnetInfo
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the subnetwork; defined by the server.
        # Corresponds to the JSON property `canonicalUrl`
        # @return [String]
        attr_accessor :canonical_url
      
        # Resource URL to the subnetwork for which traffic from/to all VM instances will
        # be mirrored.
        # Corresponds to the JSON property `url`
        # @return [String]
        attr_accessor :url
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @canonical_url = args[:canonical_url] if args.key?(:canonical_url)
          @url = args[:url] if args.key?(:url)
        end
      end
      
      # 
      class PacketMirroringNetworkInfo
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the network; defined by the server.
        # Corresponds to the JSON property `canonicalUrl`
        # @return [String]
        attr_accessor :canonical_url
      
        # URL of the network resource.
        # Corresponds to the JSON property `url`
        # @return [String]
        attr_accessor :url
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @canonical_url = args[:canonical_url] if args.key?(:canonical_url)
          @url = args[:url] if args.key?(:url)
        end
      end
      
      # 
      class PacketMirroringsScopedList
        include Google::Apis::Core::Hashable
      
        # A list of packetMirrorings contained in this scope.
        # Corresponds to the JSON property `packetMirrorings`
        # @return [Array<Google::Apis::ComputeAlpha::PacketMirroring>]
        attr_accessor :packet_mirrorings
      
        # Informational warning which replaces the list of packetMirrorings when the
        # list is empty.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::PacketMirroringsScopedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @packet_mirrorings = args[:packet_mirrorings] if args.key?(:packet_mirrorings)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # Informational warning which replaces the list of packetMirrorings when the
        # list is empty.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::PacketMirroringsScopedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # A matcher for the path portion of the URL. The BackendService from the longest-
      # matched rule will serve the URL. If no rule was matched, the default service
      # will be used.
      class PathMatcher
        include Google::Apis::Core::Hashable
      
        # defaultRouteAction takes effect when none of the  pathRules or routeRules
        # match. The load balancer performs advanced routing actions like URL rewrites,
        # header transformations, etc. prior to forwarding the request to the selected
        # backend. If defaultRouteAction specifies any weightedBackendServices,
        # defaultService must not be set. Conversely if defaultService is set,
        # defaultRouteAction cannot contain any  weightedBackendServices.
        # Only one of defaultRouteAction or defaultUrlRedirect must be set.
        # UrlMaps for external HTTP(S) load balancers support only the urlRewrite action
        # within a pathMatcher's defaultRouteAction.
        # Corresponds to the JSON property `defaultRouteAction`
        # @return [Google::Apis::ComputeAlpha::HttpRouteAction]
        attr_accessor :default_route_action
      
        # The full or partial URL to the BackendService resource. This will be used if
        # none of the pathRules or routeRules defined by this PathMatcher are matched.
        # For example, the following are all valid URLs to a BackendService resource:
        # - https://www.googleapis.com/compute/v1/projects/project/global/
        # backendServices/backendService
        # - compute/v1/projects/project/global/backendServices/backendService
        # - global/backendServices/backendService  If defaultRouteAction is additionally
        # specified, advanced routing actions like URL Rewrites, etc. take effect prior
        # to sending the request to the backend. However, if defaultService is specified,
        # defaultRouteAction cannot contain any weightedBackendServices. Conversely, if
        # defaultRouteAction specifies any weightedBackendServices, defaultService must
        # not be specified.
        # Only one of defaultService, defaultUrlRedirect  or defaultRouteAction.
        # weightedBackendService must be set.
        # Authorization requires one or more of the following Google IAM permissions on
        # the specified resource default_service:
        # - compute.backendBuckets.use
        # - compute.backendServices.use
        # Corresponds to the JSON property `defaultService`
        # @return [String]
        attr_accessor :default_service
      
        # Specifies settings for an HTTP redirect.
        # Corresponds to the JSON property `defaultUrlRedirect`
        # @return [Google::Apis::ComputeAlpha::HttpRedirectAction]
        attr_accessor :default_url_redirect
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # The request and response header transformations that take effect before the
        # request is passed along to the selected backendService.
        # Corresponds to the JSON property `headerAction`
        # @return [Google::Apis::ComputeAlpha::HttpHeaderAction]
        attr_accessor :header_action
      
        # The name to which this PathMatcher is referred by the HostRule.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # The list of path rules. Use this list instead of routeRules when routing based
        # on simple path matching is all that's required. The order by which path rules
        # are specified does not matter. Matches are always done on the longest-path-
        # first basis.
        # For example: a pathRule with a path /a/b/c/* will match before /a/b/*
        # irrespective of the order in which those paths appear in this list.
        # Within a given pathMatcher, only one of pathRules or routeRules must be set.
        # Corresponds to the JSON property `pathRules`
        # @return [Array<Google::Apis::ComputeAlpha::PathRule>]
        attr_accessor :path_rules
      
        # The list of HTTP route rules. Use this list instead of pathRules when advanced
        # route matching and routing actions are desired. routeRules are evaluated in
        # order of priority, from the lowest to highest number.
        # Within a given pathMatcher, you can set only one of pathRules or routeRules.
        # Corresponds to the JSON property `routeRules`
        # @return [Array<Google::Apis::ComputeAlpha::HttpRouteRule>]
        attr_accessor :route_rules
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @default_route_action = args[:default_route_action] if args.key?(:default_route_action)
          @default_service = args[:default_service] if args.key?(:default_service)
          @default_url_redirect = args[:default_url_redirect] if args.key?(:default_url_redirect)
          @description = args[:description] if args.key?(:description)
          @header_action = args[:header_action] if args.key?(:header_action)
          @name = args[:name] if args.key?(:name)
          @path_rules = args[:path_rules] if args.key?(:path_rules)
          @route_rules = args[:route_rules] if args.key?(:route_rules)
        end
      end
      
      # A path-matching rule for a URL. If matched, will use the specified
      # BackendService to handle the traffic arriving at this URL.
      class PathRule
        include Google::Apis::Core::Hashable
      
        # The list of path patterns to match. Each must start with / and the only place
        # a * is allowed is at the end following a /. The string fed to the path matcher
        # does not include any text after the first ? or #, and those chars are not
        # allowed here.
        # Corresponds to the JSON property `paths`
        # @return [Array<String>]
        attr_accessor :paths
      
        # In response to a matching path, the load balancer performs advanced routing
        # actions like URL rewrites, header transformations, etc. prior to forwarding
        # the request to the selected backend. If routeAction specifies any
        # weightedBackendServices, service must not be set. Conversely if service is set,
        # routeAction cannot contain any  weightedBackendServices.
        # Only one of routeAction or urlRedirect must be set.
        # UrlMaps for external HTTP(S) load balancers support only the urlRewrite action
        # within a pathRule's routeAction.
        # Corresponds to the JSON property `routeAction`
        # @return [Google::Apis::ComputeAlpha::HttpRouteAction]
        attr_accessor :route_action
      
        # The full or partial URL of the backend service resource to which traffic is
        # directed if this rule is matched. If routeAction is additionally specified,
        # advanced routing actions like URL Rewrites, etc. take effect prior to sending
        # the request to the backend. However, if service is specified, routeAction
        # cannot contain any weightedBackendService s. Conversely, if routeAction
        # specifies any  weightedBackendServices, service must not be specified.
        # Only one of urlRedirect, service or routeAction.weightedBackendService must be
        # set.
        # Corresponds to the JSON property `service`
        # @return [String]
        attr_accessor :service
      
        # Specifies settings for an HTTP redirect.
        # Corresponds to the JSON property `urlRedirect`
        # @return [Google::Apis::ComputeAlpha::HttpRedirectAction]
        attr_accessor :url_redirect
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @paths = args[:paths] if args.key?(:paths)
          @route_action = args[:route_action] if args.key?(:route_action)
          @service = args[:service] if args.key?(:service)
          @url_redirect = args[:url_redirect] if args.key?(:url_redirect)
        end
      end
      
      # [Deprecated] Configuration for the peer authentication method. Configuration
      # for the peer authentication method.
      class PeerAuthenticationMethod
        include Google::Apis::Core::Hashable
      
        # [Deprecated] Configuration for the mutual Tls mode for peer authentication.
        # Configuration for the mutual Tls mode for peer authentication.
        # Corresponds to the JSON property `mtls`
        # @return [Google::Apis::ComputeAlpha::MutualTls]
        attr_accessor :mtls
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @mtls = args[:mtls] if args.key?(:mtls)
        end
      end
      
      # 
      class PerInstanceConfig
        include Google::Apis::Core::Hashable
      
        # Fingerprint of this per-instance config. This field can be used in optimistic
        # locking. It is ignored when inserting a per-instance config. An up-to-date
        # fingerprint must be provided in order to update an existing per-instance
        # config or the field needs to be unset.
        # Corresponds to the JSON property `fingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :fingerprint
      
        # The name of a per-instance config and its corresponding instance. Serves as a
        # merge key during UpdatePerInstanceConfigs operations, that is, if a per-
        # instance config with the same name exists then it will be updated, otherwise a
        # new one will be created for the VM instance with the same name. An attempt to
        # create a per-instance config for a VM instance that either doesn't exist or is
        # not part of the group will result in an error.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # Preserved state for a given instance.
        # Corresponds to the JSON property `preservedState`
        # @return [Google::Apis::ComputeAlpha::PreservedState]
        attr_accessor :preserved_state
      
        # The status of applying this per-instance config on the corresponding managed
        # instance.
        # Corresponds to the JSON property `status`
        # @return [String]
        attr_accessor :status
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @fingerprint = args[:fingerprint] if args.key?(:fingerprint)
          @name = args[:name] if args.key?(:name)
          @preserved_state = args[:preserved_state] if args.key?(:preserved_state)
          @status = args[:status] if args.key?(:status)
        end
      end
      
      # [Deprecated] All fields defined in a permission are ANDed.
      class Permission
        include Google::Apis::Core::Hashable
      
        # Extra custom constraints. The constraints are ANDed together.
        # Corresponds to the JSON property `constraints`
        # @return [Array<Google::Apis::ComputeAlpha::PermissionConstraint>]
        attr_accessor :constraints
      
        # Used in Ingress or Egress Gateway cases to specify hosts that the policy
        # applies to. Exact match, prefix match, and suffix match are supported.
        # Corresponds to the JSON property `hosts`
        # @return [Array<String>]
        attr_accessor :hosts
      
        # HTTP method.
        # Corresponds to the JSON property `methods`
        # @return [Array<String>]
        attr_accessor :methods_prop
      
        # Negate of hosts. Specifies exclusions.
        # Corresponds to the JSON property `notHosts`
        # @return [Array<String>]
        attr_accessor :not_hosts
      
        # Negate of methods. Specifies exclusions.
        # Corresponds to the JSON property `notMethods`
        # @return [Array<String>]
        attr_accessor :not_methods
      
        # Negate of paths. Specifies exclusions.
        # Corresponds to the JSON property `notPaths`
        # @return [Array<String>]
        attr_accessor :not_paths
      
        # Negate of ports. Specifies exclusions.
        # Corresponds to the JSON property `notPorts`
        # @return [Array<String>]
        attr_accessor :not_ports
      
        # HTTP request paths or gRPC methods. Exact match, prefix match, and suffix
        # match are supported.
        # Corresponds to the JSON property `paths`
        # @return [Array<String>]
        attr_accessor :paths
      
        # Port names or numbers.
        # Corresponds to the JSON property `ports`
        # @return [Array<String>]
        attr_accessor :ports
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @constraints = args[:constraints] if args.key?(:constraints)
          @hosts = args[:hosts] if args.key?(:hosts)
          @methods_prop = args[:methods_prop] if args.key?(:methods_prop)
          @not_hosts = args[:not_hosts] if args.key?(:not_hosts)
          @not_methods = args[:not_methods] if args.key?(:not_methods)
          @not_paths = args[:not_paths] if args.key?(:not_paths)
          @not_ports = args[:not_ports] if args.key?(:not_ports)
          @paths = args[:paths] if args.key?(:paths)
          @ports = args[:ports] if args.key?(:ports)
        end
      end
      
      # Custom constraint that specifies a key and a list of allowed values for Istio
      # attributes.
      class PermissionConstraint
        include Google::Apis::Core::Hashable
      
        # Key of the constraint.
        # Corresponds to the JSON property `key`
        # @return [String]
        attr_accessor :key
      
        # A list of allowed values.
        # Corresponds to the JSON property `values`
        # @return [Array<String>]
        attr_accessor :values
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @key = args[:key] if args.key?(:key)
          @values = args[:values] if args.key?(:values)
        end
      end
      
      # An Identity and Access Management (IAM) policy, which specifies access
      # controls for Google Cloud resources.
      # A `Policy` is a collection of `bindings`. A `binding` binds one or more `
      # members` to a single `role`. Members can be user accounts, service accounts,
      # Google groups, and domains (such as G Suite). A `role` is a named list of
      # permissions; each `role` can be an IAM predefined role or a user-created
      # custom role.
      # For some types of Google Cloud resources, a `binding` can also specify a `
      # condition`, which is a logical expression that allows access to a resource
      # only if the expression evaluates to `true`. A condition can add constraints
      # based on attributes of the request, the resource, or both. To learn which
      # resources support conditions in their IAM policies, see the [IAM documentation]
      # (https://cloud.google.com/iam/help/conditions/resource-policies).
      # **JSON example:**
      # ` "bindings": [ ` "role": "roles/resourcemanager.organizationAdmin", "members":
      # [ "user:mike@example.com", "group:admins@example.com", "domain:google.com", "
      # serviceAccount:my-project-id@appspot.gserviceaccount.com" ] `, ` "role": "
      # roles/resourcemanager.organizationViewer", "members": [ "user:eve@example.com"
      # ], "condition": ` "title": "expirable access", "description": "Does not grant
      # access after Sep 2020", "expression": "request.time < timestamp('2020-10-01T00:
      # 00:00.000Z')", ` ` ], "etag": "BwWWja0YfJA=", "version": 3 `
      # **YAML example:**
      # bindings: - members: - user:mike@example.com - group:admins@example.com -
      # domain:google.com - serviceAccount:my-project-id@appspot.gserviceaccount.com
      # role: roles/resourcemanager.organizationAdmin - members: - user:eve@example.
      # com role: roles/resourcemanager.organizationViewer condition: title: expirable
      # access description: Does not grant access after Sep 2020 expression: request.
      # time < timestamp('2020-10-01T00:00:00.000Z') - etag: BwWWja0YfJA= - version: 3
      # For a description of IAM and its features, see the [IAM documentation](https://
      # cloud.google.com/iam/docs/).
      class Policy
        include Google::Apis::Core::Hashable
      
        # Specifies cloud audit logging configuration for this policy.
        # Corresponds to the JSON property `auditConfigs`
        # @return [Array<Google::Apis::ComputeAlpha::AuditConfig>]
        attr_accessor :audit_configs
      
        # Associates a list of `members` to a `role`. Optionally, may specify a `
        # condition` that determines how and when the `bindings` are applied. Each of
        # the `bindings` must contain at least one member.
        # Corresponds to the JSON property `bindings`
        # @return [Array<Google::Apis::ComputeAlpha::Binding>]
        attr_accessor :bindings
      
        # `etag` is used for optimistic concurrency control as a way to help prevent
        # simultaneous updates of a policy from overwriting each other. It is strongly
        # suggested that systems make use of the `etag` in the read-modify-write cycle
        # to perform policy updates in order to avoid race conditions: An `etag` is
        # returned in the response to `getIamPolicy`, and systems are expected to put
        # that etag in the request to `setIamPolicy` to ensure that their change will be
        # applied to the same version of the policy.
        # **Important:** If you use IAM Conditions, you must include the `etag` field
        # whenever you call `setIamPolicy`. If you omit this field, then IAM allows you
        # to overwrite a version `3` policy with a version `1` policy, and all of the
        # conditions in the version `3` policy are lost.
        # Corresponds to the JSON property `etag`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :etag
      
        # 
        # Corresponds to the JSON property `iamOwned`
        # @return [Boolean]
        attr_accessor :iam_owned
        alias_method :iam_owned?, :iam_owned
      
        # If more than one rule is specified, the rules are applied in the following
        # manner: - All matching LOG rules are always applied. - If any DENY/
        # DENY_WITH_LOG rule matches, permission is denied. Logging will be applied if
        # one or more matching rule requires logging. - Otherwise, if any ALLOW/
        # ALLOW_WITH_LOG rule matches, permission is granted. Logging will be applied if
        # one or more matching rule requires logging. - Otherwise, if no rule applies,
        # permission is denied.
        # Corresponds to the JSON property `rules`
        # @return [Array<Google::Apis::ComputeAlpha::Rule>]
        attr_accessor :rules
      
        # Specifies the format of the policy.
        # Valid values are `0`, `1`, and `3`. Requests that specify an invalid value are
        # rejected.
        # Any operation that affects conditional role bindings must specify version `3`.
        # This requirement applies to the following operations:
        # * Getting a policy that includes a conditional role binding * Adding a
        # conditional role binding to a policy * Changing a conditional role binding in
        # a policy * Removing any role binding, with or without a condition, from a
        # policy that includes conditions
        # **Important:** If you use IAM Conditions, you must include the `etag` field
        # whenever you call `setIamPolicy`. If you omit this field, then IAM allows you
        # to overwrite a version `3` policy with a version `1` policy, and all of the
        # conditions in the version `3` policy are lost.
        # If a policy does not include any conditions, operations on that policy may
        # specify any valid version or leave the field unset.
        # To learn which resources support conditions in their IAM policies, see the [
        # IAM documentation](https://cloud.google.com/iam/help/conditions/resource-
        # policies).
        # Corresponds to the JSON property `version`
        # @return [Fixnum]
        attr_accessor :version
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @audit_configs = args[:audit_configs] if args.key?(:audit_configs)
          @bindings = args[:bindings] if args.key?(:bindings)
          @etag = args[:etag] if args.key?(:etag)
          @iam_owned = args[:iam_owned] if args.key?(:iam_owned)
          @rules = args[:rules] if args.key?(:rules)
          @version = args[:version] if args.key?(:version)
        end
      end
      
      # 
      class PreconfiguredWafSet
        include Google::Apis::Core::Hashable
      
        # List of entities that are currently supported for WAF rules.
        # Corresponds to the JSON property `expressionSets`
        # @return [Array<Google::Apis::ComputeAlpha::WafExpressionSet>]
        attr_accessor :expression_sets
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @expression_sets = args[:expression_sets] if args.key?(:expression_sets)
        end
      end
      
      # Preserved state for a given instance.
      class PreservedState
        include Google::Apis::Core::Hashable
      
        # Preserved disks defined for this instance. This map is keyed with the device
        # names of the disks.
        # Corresponds to the JSON property `disks`
        # @return [Hash<String,Google::Apis::ComputeAlpha::PreservedStatePreservedDisk>]
        attr_accessor :disks
      
        # Preserved metadata defined for this instance.
        # Corresponds to the JSON property `metadata`
        # @return [Hash<String,String>]
        attr_accessor :metadata
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @disks = args[:disks] if args.key?(:disks)
          @metadata = args[:metadata] if args.key?(:metadata)
        end
      end
      
      # 
      class PreservedStatePreservedDisk
        include Google::Apis::Core::Hashable
      
        # These stateful disks will never be deleted during autohealing, update,
        # instance recreate operations. This flag is used to configure if the disk
        # should be deleted after it is no longer used by the group, e.g. when the given
        # instance or the whole MIG is deleted. Note: disks attached in READ_ONLY mode
        # cannot be auto-deleted.
        # Corresponds to the JSON property `autoDelete`
        # @return [String]
        attr_accessor :auto_delete
      
        # The mode in which to attach this disk, either READ_WRITE or READ_ONLY. If not
        # specified, the default is to attach the disk in READ_WRITE mode.
        # Corresponds to the JSON property `mode`
        # @return [String]
        attr_accessor :mode
      
        # The URL of the disk resource that is stateful and should be attached to the VM
        # instance.
        # Corresponds to the JSON property `source`
        # @return [String]
        attr_accessor :source
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @auto_delete = args[:auto_delete] if args.key?(:auto_delete)
          @mode = args[:mode] if args.key?(:mode)
          @source = args[:source] if args.key?(:source)
        end
      end
      
      # [Deprecated] All fields defined in a principal are ANDed.
      class Principal
        include Google::Apis::Core::Hashable
      
        # An expression to specify custom condition.
        # Corresponds to the JSON property `condition`
        # @return [String]
        attr_accessor :condition
      
        # The groups the principal belongs to. Exact match, prefix match, and suffix
        # match are supported.
        # Corresponds to the JSON property `groups`
        # @return [Array<String>]
        attr_accessor :groups
      
        # IPv4 or IPv6 address or range (In CIDR format)
        # Corresponds to the JSON property `ips`
        # @return [Array<String>]
        attr_accessor :ips
      
        # The namespaces. Exact match, prefix match, and suffix match are supported.
        # Corresponds to the JSON property `namespaces`
        # @return [Array<String>]
        attr_accessor :namespaces
      
        # Negate of groups. Specifies exclusions.
        # Corresponds to the JSON property `notGroups`
        # @return [Array<String>]
        attr_accessor :not_groups
      
        # Negate of IPs. Specifies exclusions.
        # Corresponds to the JSON property `notIps`
        # @return [Array<String>]
        attr_accessor :not_ips
      
        # Negate of namespaces. Specifies exclusions.
        # Corresponds to the JSON property `notNamespaces`
        # @return [Array<String>]
        attr_accessor :not_namespaces
      
        # Negate of users. Specifies exclusions.
        # Corresponds to the JSON property `notUsers`
        # @return [Array<String>]
        attr_accessor :not_users
      
        # A map of Istio attribute to expected values. Exact match, prefix match, and
        # suffix match are supported for values. For example, `request.headers[version]:
        # "v1"`. The properties are ANDed together.
        # Corresponds to the JSON property `properties`
        # @return [Hash<String,String>]
        attr_accessor :properties
      
        # The user names/IDs or service accounts. Exact match, prefix match, and suffix
        # match are supported.
        # Corresponds to the JSON property `users`
        # @return [Array<String>]
        attr_accessor :users
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @condition = args[:condition] if args.key?(:condition)
          @groups = args[:groups] if args.key?(:groups)
          @ips = args[:ips] if args.key?(:ips)
          @namespaces = args[:namespaces] if args.key?(:namespaces)
          @not_groups = args[:not_groups] if args.key?(:not_groups)
          @not_ips = args[:not_ips] if args.key?(:not_ips)
          @not_namespaces = args[:not_namespaces] if args.key?(:not_namespaces)
          @not_users = args[:not_users] if args.key?(:not_users)
          @properties = args[:properties] if args.key?(:properties)
          @users = args[:users] if args.key?(:users)
        end
      end
      
      # Represents a Project resource.
      # A project is used to organize resources in a Google Cloud Platform environment.
      # For more information, read about the  Resource Hierarchy. (== resource_for `$
      # api_version`.projects ==)
      class Project
        include Google::Apis::Core::Hashable
      
        # A metadata key/value entry.
        # Corresponds to the JSON property `commonInstanceMetadata`
        # @return [Google::Apis::ComputeAlpha::Metadata]
        attr_accessor :common_instance_metadata
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # This signifies the default network tier used for configuring resources of the
        # project and can only take the following values: PREMIUM, STANDARD. Initially
        # the default network tier is PREMIUM.
        # Corresponds to the JSON property `defaultNetworkTier`
        # @return [String]
        attr_accessor :default_network_tier
      
        # [Output Only] Default service account used by VMs running in this project.
        # Corresponds to the JSON property `defaultServiceAccount`
        # @return [String]
        attr_accessor :default_service_account
      
        # An optional textual description of the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # Restricted features enabled for use on this project.
        # Corresponds to the JSON property `enabledFeatures`
        # @return [Array<String>]
        attr_accessor :enabled_features
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server. This is not the project ID, and is just a unique ID
        # used by Compute Engine to identify resources.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] Type of the resource. Always compute#project for projects.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # The project ID. For example: my-example-project. Use the project ID to make
        # requests to Compute Engine.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # [Output Only] Quotas assigned to this project.
        # Corresponds to the JSON property `quotas`
        # @return [Array<Google::Apis::ComputeAlpha::Quota>]
        attr_accessor :quotas
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # The location in Cloud Storage and naming method of the daily usage report.
        # Contains bucket_name and report_name prefix.
        # Corresponds to the JSON property `usageExportLocation`
        # @return [Google::Apis::ComputeAlpha::UsageExportLocation]
        attr_accessor :usage_export_location
      
        # [Output Only] The role this project has in a shared VPC configuration.
        # Currently, only projects with the host role, which is specified by the value
        # HOST, are differentiated.
        # Corresponds to the JSON property `xpnProjectStatus`
        # @return [String]
        attr_accessor :xpn_project_status
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @common_instance_metadata = args[:common_instance_metadata] if args.key?(:common_instance_metadata)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @default_network_tier = args[:default_network_tier] if args.key?(:default_network_tier)
          @default_service_account = args[:default_service_account] if args.key?(:default_service_account)
          @description = args[:description] if args.key?(:description)
          @enabled_features = args[:enabled_features] if args.key?(:enabled_features)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @name = args[:name] if args.key?(:name)
          @quotas = args[:quotas] if args.key?(:quotas)
          @self_link = args[:self_link] if args.key?(:self_link)
          @usage_export_location = args[:usage_export_location] if args.key?(:usage_export_location)
          @xpn_project_status = args[:xpn_project_status] if args.key?(:xpn_project_status)
        end
      end
      
      # 
      class ProjectsDisableXpnResourceRequest
        include Google::Apis::Core::Hashable
      
        # Service resource (a.k.a service project) ID.
        # Corresponds to the JSON property `xpnResource`
        # @return [Google::Apis::ComputeAlpha::XpnResourceId]
        attr_accessor :xpn_resource
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @xpn_resource = args[:xpn_resource] if args.key?(:xpn_resource)
        end
      end
      
      # 
      class ProjectsEnableXpnResourceRequest
        include Google::Apis::Core::Hashable
      
        # Service resource (a.k.a service project) ID.
        # Corresponds to the JSON property `xpnResource`
        # @return [Google::Apis::ComputeAlpha::XpnResourceId]
        attr_accessor :xpn_resource
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @xpn_resource = args[:xpn_resource] if args.key?(:xpn_resource)
        end
      end
      
      # 
      class ProjectsGetXpnResources
        include Google::Apis::Core::Hashable
      
        # [Output Only] Type of resource. Always compute#projectsGetXpnResources for
        # lists of service resources (a.k.a service projects)
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # Service resources (a.k.a service projects) attached to this project as their
        # shared VPC host.
        # Corresponds to the JSON property `resources`
        # @return [Array<Google::Apis::ComputeAlpha::XpnResourceId>]
        attr_accessor :resources
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @resources = args[:resources] if args.key?(:resources)
        end
      end
      
      # 
      class ProjectsListXpnHostsRequest
        include Google::Apis::Core::Hashable
      
        # Optional organization ID managed by Cloud Resource Manager, for which to list
        # shared VPC host projects. If not specified, the organization will be inferred
        # from the project.
        # Corresponds to the JSON property `organization`
        # @return [String]
        attr_accessor :organization
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @organization = args[:organization] if args.key?(:organization)
        end
      end
      
      # 
      class ProjectsSetDefaultNetworkTierRequest
        include Google::Apis::Core::Hashable
      
        # Default network tier to be set.
        # Corresponds to the JSON property `networkTier`
        # @return [String]
        attr_accessor :network_tier
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @network_tier = args[:network_tier] if args.key?(:network_tier)
        end
      end
      
      # 
      class ProjectsSetDefaultServiceAccountRequest
        include Google::Apis::Core::Hashable
      
        # Email address of the service account.
        # Corresponds to the JSON property `email`
        # @return [String]
        attr_accessor :email
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @email = args[:email] if args.key?(:email)
        end
      end
      
      # A public advertised prefix represents an aggregated IP prefix or netblock
      # which customers bring to cloud. The IP prefix is a single unit of route
      # advertisement and is announced globally to the internet.
      class PublicAdvertisedPrefix
        include Google::Apis::Core::Hashable
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # The IPv4 address to be used for reverse DNS verification.
        # Corresponds to the JSON property `dnsVerificationIp`
        # @return [String]
        attr_accessor :dns_verification_ip
      
        # Fingerprint of this resource. A hash of the contents stored in this object.
        # This field is used in optimistic locking. This field will be ignored when
        # inserting a new PublicAdvertisedPrefix. An up-to-date fingerprint must be
        # provided in order to update the PublicAdvertisedPrefix, otherwise the request
        # will fail with error 412 conditionNotMet.
        # To see the latest fingerprint, make a get() request to retrieve a
        # PublicAdvertisedPrefix.
        # Corresponds to the JSON property `fingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :fingerprint
      
        # [Output Only] The unique identifier for the resource type. The server
        # generates this identifier.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # The IPv4 address range, in CIDR format, represented by this public advertised
        # prefix.
        # Corresponds to the JSON property `ipCidrRange`
        # @return [String]
        attr_accessor :ip_cidr_range
      
        # [Output Only] Type of the resource. Always compute#publicAdvertisedPrefix for
        # public advertised prefixes.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # Name of the resource. Provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # [Output Only] The list of public delegated prefixes that exist for this public
        # advertised prefix.
        # Corresponds to the JSON property `publicDelegatedPrefixs`
        # @return [Array<Google::Apis::ComputeAlpha::PublicAdvertisedPrefixPublicDelegatedPrefix>]
        attr_accessor :public_delegated_prefixs
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL with id for the resource.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # [Output Only] The shared secret to be used for reverse DNS verification.
        # Corresponds to the JSON property `sharedSecret`
        # @return [String]
        attr_accessor :shared_secret
      
        # The status of the public advertised prefix.
        # Corresponds to the JSON property `status`
        # @return [String]
        attr_accessor :status
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @dns_verification_ip = args[:dns_verification_ip] if args.key?(:dns_verification_ip)
          @fingerprint = args[:fingerprint] if args.key?(:fingerprint)
          @id = args[:id] if args.key?(:id)
          @ip_cidr_range = args[:ip_cidr_range] if args.key?(:ip_cidr_range)
          @kind = args[:kind] if args.key?(:kind)
          @name = args[:name] if args.key?(:name)
          @public_delegated_prefixs = args[:public_delegated_prefixs] if args.key?(:public_delegated_prefixs)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @shared_secret = args[:shared_secret] if args.key?(:shared_secret)
          @status = args[:status] if args.key?(:status)
        end
      end
      
      # 
      class PublicAdvertisedPrefixList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of PublicAdvertisedPrefix resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::PublicAdvertisedPrefix>]
        attr_accessor :items
      
        # [Output Only] Type of the resource. Always compute#publicAdvertisedPrefix for
        # public advertised prefixes.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::PublicAdvertisedPrefixList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::PublicAdvertisedPrefixList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Represents a CIDR range which can be used to assign addresses.
      class PublicAdvertisedPrefixPublicDelegatedPrefix
        include Google::Apis::Core::Hashable
      
        # The IP address range of the public delegated prefix
        # Corresponds to the JSON property `ipRange`
        # @return [String]
        attr_accessor :ip_range
      
        # The name of the public delegated prefix
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # The project number of the public delegated prefix
        # Corresponds to the JSON property `project`
        # @return [String]
        attr_accessor :project
      
        # The region of the public delegated prefix if it is regional. If absent, the
        # prefix is global.
        # Corresponds to the JSON property `region`
        # @return [String]
        attr_accessor :region
      
        # The status of the public delegated prefix. Possible values are: INITIALIZING:
        # The public delegated prefix is being initialized and addresses cannot be
        # created yet. ANNOUNCED: The public delegated prefix is active.
        # Corresponds to the JSON property `status`
        # @return [String]
        attr_accessor :status
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @ip_range = args[:ip_range] if args.key?(:ip_range)
          @name = args[:name] if args.key?(:name)
          @project = args[:project] if args.key?(:project)
          @region = args[:region] if args.key?(:region)
          @status = args[:status] if args.key?(:status)
        end
      end
      
      # A PublicDelegatedPrefix resource represents an IP block within a
      # PublicAdvertisedPrefix that is configured within a single cloud scope (global
      # or region). IPs in the block can be allocated to resources within that scope.
      # Public delegated prefixes may be further broken up into smaller IP blocks in
      # the same scope as the parent block.
      class PublicDelegatedPrefix
        include Google::Apis::Core::Hashable
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # Fingerprint of this resource. A hash of the contents stored in this object.
        # This field is used in optimistic locking. This field will be ignored when
        # inserting a new PublicDelegatedPrefix. An up-to-date fingerprint must be
        # provided in order to update the PublicDelegatedPrefix, otherwise the request
        # will fail with error 412 conditionNotMet.
        # To see the latest fingerprint, make a get() request to retrieve a
        # PublicDelegatedPrefix.
        # Corresponds to the JSON property `fingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :fingerprint
      
        # [Output Only] The unique identifier for the resource type. The server
        # generates this identifier.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # The IPv4 address range, in CIDR format, represented by this public delegated
        # prefix.
        # Corresponds to the JSON property `ipCidrRange`
        # @return [String]
        attr_accessor :ip_cidr_range
      
        # If true, the prefix will be live migrated.
        # Corresponds to the JSON property `isLiveMigration`
        # @return [Boolean]
        attr_accessor :is_live_migration
        alias_method :is_live_migration?, :is_live_migration
      
        # [Output Only] Type of the resource. Always compute#publicDelegatedPrefix for
        # public delegated prefixes.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # Name of the resource. Provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # The URL of parent prefix. Either PublicAdvertisedPrefix or
        # PublicDelegatedPrefix.
        # Corresponds to the JSON property `parentPrefix`
        # @return [String]
        attr_accessor :parent_prefix
      
        # The list of sub public delegated prefixes that exist for this public delegated
        # prefix.
        # Corresponds to the JSON property `publicDelegatedSubPrefixs`
        # @return [Array<Google::Apis::ComputeAlpha::PublicDelegatedPrefixPublicDelegatedSubPrefix>]
        attr_accessor :public_delegated_sub_prefixs
      
        # [Output Only] URL of the region where the public delegated prefix resides.
        # This field applies only to the region resource. You must specify this field as
        # part of the HTTP request URL. It is not settable as a field in the request
        # body.
        # Corresponds to the JSON property `region`
        # @return [String]
        attr_accessor :region
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL with id for the resource.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # [Output Only] The status of the public delegated prefix.
        # Corresponds to the JSON property `status`
        # @return [String]
        attr_accessor :status
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @fingerprint = args[:fingerprint] if args.key?(:fingerprint)
          @id = args[:id] if args.key?(:id)
          @ip_cidr_range = args[:ip_cidr_range] if args.key?(:ip_cidr_range)
          @is_live_migration = args[:is_live_migration] if args.key?(:is_live_migration)
          @kind = args[:kind] if args.key?(:kind)
          @name = args[:name] if args.key?(:name)
          @parent_prefix = args[:parent_prefix] if args.key?(:parent_prefix)
          @public_delegated_sub_prefixs = args[:public_delegated_sub_prefixs] if args.key?(:public_delegated_sub_prefixs)
          @region = args[:region] if args.key?(:region)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @status = args[:status] if args.key?(:status)
        end
      end
      
      # 
      class PublicDelegatedPrefixAggregatedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of PublicDelegatedPrefixesScopedList resources.
        # Corresponds to the JSON property `items`
        # @return [Hash<String,Google::Apis::ComputeAlpha::PublicDelegatedPrefixesScopedList>]
        attr_accessor :items
      
        # [Output Only] Type of the resource. Always compute#
        # publicDelegatedPrefixAggregatedList for aggregated lists of public delegated
        # prefixes.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Unreachable resources.
        # Corresponds to the JSON property `unreachables`
        # @return [Array<String>]
        attr_accessor :unreachables
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::PublicDelegatedPrefixAggregatedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @unreachables = args[:unreachables] if args.key?(:unreachables)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::PublicDelegatedPrefixAggregatedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class PublicDelegatedPrefixList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of PublicDelegatedPrefix resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::PublicDelegatedPrefix>]
        attr_accessor :items
      
        # [Output Only] Type of the resource. Always compute#publicDelegatedPrefixList
        # for public delegated prefixes.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::PublicDelegatedPrefixList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::PublicDelegatedPrefixList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Represents a sub PublicDelegatedPrefix.
      class PublicDelegatedPrefixPublicDelegatedSubPrefix
        include Google::Apis::Core::Hashable
      
        # Name of the project scoping this PublicDelegatedSubPrefix.
        # Corresponds to the JSON property `delegateeProject`
        # @return [String]
        attr_accessor :delegatee_project
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # The IPv4 address range, in CIDR format, represented by this sub public
        # delegated prefix.
        # Corresponds to the JSON property `ipCidrRange`
        # @return [String]
        attr_accessor :ip_cidr_range
      
        # Whether the sub prefix is delegated to create Address resources in the
        # delegatee project.
        # Corresponds to the JSON property `isAddress`
        # @return [Boolean]
        attr_accessor :is_address
        alias_method :is_address?, :is_address
      
        # The name of the sub public delegated prefix.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # [Output Only] The region of the sub public delegated prefix if it is regional.
        # If absent, the sub prefix is global.
        # Corresponds to the JSON property `region`
        # @return [String]
        attr_accessor :region
      
        # [Output Only] The status of the sub public delegated prefix.
        # Corresponds to the JSON property `status`
        # @return [String]
        attr_accessor :status
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @delegatee_project = args[:delegatee_project] if args.key?(:delegatee_project)
          @description = args[:description] if args.key?(:description)
          @ip_cidr_range = args[:ip_cidr_range] if args.key?(:ip_cidr_range)
          @is_address = args[:is_address] if args.key?(:is_address)
          @name = args[:name] if args.key?(:name)
          @region = args[:region] if args.key?(:region)
          @status = args[:status] if args.key?(:status)
        end
      end
      
      # 
      class PublicDelegatedPrefixesScopedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] A list of PublicDelegatedPrefixes contained in this scope.
        # Corresponds to the JSON property `publicDelegatedPrefixes`
        # @return [Array<Google::Apis::ComputeAlpha::PublicDelegatedPrefix>]
        attr_accessor :public_delegated_prefixes
      
        # [Output Only] Informational warning which replaces the list of public
        # delegated prefixes when the list is empty.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::PublicDelegatedPrefixesScopedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @public_delegated_prefixes = args[:public_delegated_prefixes] if args.key?(:public_delegated_prefixes)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning which replaces the list of public
        # delegated prefixes when the list is empty.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::PublicDelegatedPrefixesScopedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # A quotas entry.
      class Quota
        include Google::Apis::Core::Hashable
      
        # [Output Only] Quota limit for this metric.
        # Corresponds to the JSON property `limit`
        # @return [Float]
        attr_accessor :limit
      
        # [Output Only] Name of the quota metric.
        # Corresponds to the JSON property `metric`
        # @return [String]
        attr_accessor :metric
      
        # [Output Only] Owning resource. This is the resource on which this quota is
        # applied.
        # Corresponds to the JSON property `owner`
        # @return [String]
        attr_accessor :owner
      
        # [Output Only] Current usage of this metric.
        # Corresponds to the JSON property `usage`
        # @return [Float]
        attr_accessor :usage
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @limit = args[:limit] if args.key?(:limit)
          @metric = args[:metric] if args.key?(:metric)
          @owner = args[:owner] if args.key?(:owner)
          @usage = args[:usage] if args.key?(:usage)
        end
      end
      
      # 
      class RbacPolicy
        include Google::Apis::Core::Hashable
      
        # Name of the RbacPolicy.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # The list of permissions.
        # Corresponds to the JSON property `permissions`
        # @return [Array<Google::Apis::ComputeAlpha::Permission>]
        attr_accessor :permissions
      
        # The list of principals.
        # Corresponds to the JSON property `principals`
        # @return [Array<Google::Apis::ComputeAlpha::Principal>]
        attr_accessor :principals
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @name = args[:name] if args.key?(:name)
          @permissions = args[:permissions] if args.key?(:permissions)
          @principals = args[:principals] if args.key?(:principals)
        end
      end
      
      # Represents a reference to a resource.
      class Reference
        include Google::Apis::Core::Hashable
      
        # [Output Only] Type of the resource. Always compute#reference for references.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # A description of the reference type with no implied semantics. Possible values
        # include:
        # - MEMBER_OF
        # Corresponds to the JSON property `referenceType`
        # @return [String]
        attr_accessor :reference_type
      
        # URL of the resource which refers to the target.
        # Corresponds to the JSON property `referrer`
        # @return [String]
        attr_accessor :referrer
      
        # URL of the resource to which this reference points.
        # Corresponds to the JSON property `target`
        # @return [String]
        attr_accessor :target
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @kind = args[:kind] if args.key?(:kind)
          @reference_type = args[:reference_type] if args.key?(:reference_type)
          @referrer = args[:referrer] if args.key?(:referrer)
          @target = args[:target] if args.key?(:target)
        end
      end
      
      # Represents a Region resource.
      # A region is a geographical area where a resource is located. For more
      # information, read Regions and Zones. (== resource_for `$api_version`.regions ==
      # )
      class Region
        include Google::Apis::Core::Hashable
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # Deprecation status for a public resource.
        # Corresponds to the JSON property `deprecated`
        # @return [Google::Apis::ComputeAlpha::DeprecationStatus]
        attr_accessor :deprecated
      
        # [Output Only] Textual description of the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] Type of the resource. Always compute#region for regions.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] Name of the resource.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # [Output Only] Quotas assigned to this region.
        # Corresponds to the JSON property `quotas`
        # @return [Array<Google::Apis::ComputeAlpha::Quota>]
        attr_accessor :quotas
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # [Output Only] Status of the region, either UP or DOWN.
        # Corresponds to the JSON property `status`
        # @return [String]
        attr_accessor :status
      
        # [Output Only] Reserved for future use.
        # Corresponds to the JSON property `supportsPzs`
        # @return [Boolean]
        attr_accessor :supports_pzs
        alias_method :supports_pzs?, :supports_pzs
      
        # [Output Only] A list of zones available in this region, in the form of
        # resource URLs.
        # Corresponds to the JSON property `zones`
        # @return [Array<String>]
        attr_accessor :zones
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @deprecated = args[:deprecated] if args.key?(:deprecated)
          @description = args[:description] if args.key?(:description)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @name = args[:name] if args.key?(:name)
          @quotas = args[:quotas] if args.key?(:quotas)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @status = args[:status] if args.key?(:status)
          @supports_pzs = args[:supports_pzs] if args.key?(:supports_pzs)
          @zones = args[:zones] if args.key?(:zones)
        end
      end
      
      # Contains a list of autoscalers.
      class RegionAutoscalerList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of Autoscaler resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::Autoscaler>]
        attr_accessor :items
      
        # Type of resource.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::RegionAutoscalerList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::RegionAutoscalerList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class RegionCommitmentsUpdateReservationsRequest
        include Google::Apis::Core::Hashable
      
        # A list of two reservations to transfer GPUs and local SSD between.
        # Corresponds to the JSON property `reservations`
        # @return [Array<Google::Apis::ComputeAlpha::Reservation>]
        attr_accessor :reservations
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @reservations = args[:reservations] if args.key?(:reservations)
        end
      end
      
      # 
      class RegionDiskTypeList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of DiskType resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::DiskType>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#regionDiskTypeList for region
        # disk types.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::RegionDiskTypeList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::RegionDiskTypeList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class RegionDisksAddResourcePoliciesRequest
        include Google::Apis::Core::Hashable
      
        # Resource policies to be added to this disk.
        # Corresponds to the JSON property `resourcePolicies`
        # @return [Array<String>]
        attr_accessor :resource_policies
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @resource_policies = args[:resource_policies] if args.key?(:resource_policies)
        end
      end
      
      # 
      class RegionDisksRemoveResourcePoliciesRequest
        include Google::Apis::Core::Hashable
      
        # Resource policies to be removed from this disk.
        # Corresponds to the JSON property `resourcePolicies`
        # @return [Array<String>]
        attr_accessor :resource_policies
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @resource_policies = args[:resource_policies] if args.key?(:resource_policies)
        end
      end
      
      # 
      class RegionDisksResizeRequest
        include Google::Apis::Core::Hashable
      
        # The new size of the regional persistent disk, which is specified in GB.
        # Corresponds to the JSON property `sizeGb`
        # @return [Fixnum]
        attr_accessor :size_gb
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @size_gb = args[:size_gb] if args.key?(:size_gb)
        end
      end
      
      # Contains a list of InstanceGroup resources.
      class RegionInstanceGroupList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of InstanceGroup resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::InstanceGroup>]
        attr_accessor :items
      
        # The resource type.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::RegionInstanceGroupList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::RegionInstanceGroupList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # RegionInstanceGroupManagers.deletePerInstanceConfigs
      class RegionInstanceGroupManagerDeleteInstanceConfigReq
        include Google::Apis::Core::Hashable
      
        # The list of instance names for which we want to delete per-instance configs on
        # this managed instance group.
        # Corresponds to the JSON property `names`
        # @return [Array<String>]
        attr_accessor :names
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @names = args[:names] if args.key?(:names)
        end
      end
      
      # Contains a list of managed instance groups.
      class RegionInstanceGroupManagerList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of InstanceGroupManager resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::InstanceGroupManager>]
        attr_accessor :items
      
        # [Output Only] The resource type, which is always compute#
        # instanceGroupManagerList for a list of managed instance groups that exist in
        # th regional scope.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::RegionInstanceGroupManagerList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::RegionInstanceGroupManagerList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # RegionInstanceGroupManagers.patchPerInstanceConfigs
      class RegionInstanceGroupManagerPatchInstanceConfigReq
        include Google::Apis::Core::Hashable
      
        # The list of per-instance configs to insert or patch on this managed instance
        # group.
        # Corresponds to the JSON property `perInstanceConfigs`
        # @return [Array<Google::Apis::ComputeAlpha::PerInstanceConfig>]
        attr_accessor :per_instance_configs
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @per_instance_configs = args[:per_instance_configs] if args.key?(:per_instance_configs)
        end
      end
      
      # RegionInstanceGroupManagers.updatePerInstanceConfigs
      class RegionInstanceGroupManagerUpdateInstanceConfigReq
        include Google::Apis::Core::Hashable
      
        # The list of per-instance configs to insert or patch on this managed instance
        # group.
        # Corresponds to the JSON property `perInstanceConfigs`
        # @return [Array<Google::Apis::ComputeAlpha::PerInstanceConfig>]
        attr_accessor :per_instance_configs
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @per_instance_configs = args[:per_instance_configs] if args.key?(:per_instance_configs)
        end
      end
      
      # 
      class RegionInstanceGroupManagersAbandonInstancesRequest
        include Google::Apis::Core::Hashable
      
        # The URLs of one or more instances to abandon. This can be a full URL or a
        # partial URL, such as zones/[ZONE]/instances/[INSTANCE_NAME].
        # Corresponds to the JSON property `instances`
        # @return [Array<String>]
        attr_accessor :instances
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @instances = args[:instances] if args.key?(:instances)
        end
      end
      
      # RegionInstanceGroupManagers.applyUpdatesToInstances
      class RegionInstanceGroupManagersApplyUpdatesRequest
        include Google::Apis::Core::Hashable
      
        # Flag to update all instances instead of specified list of ?instances?. If the
        # flag is set to true then the instances may not be specified in the request.
        # Corresponds to the JSON property `allInstances`
        # @return [Boolean]
        attr_accessor :all_instances
        alias_method :all_instances?, :all_instances
      
        # The list of URLs of one or more instances for which you want to apply updates.
        # Each URL can be a full URL or a partial URL, such as zones/[ZONE]/instances/[
        # INSTANCE_NAME].
        # Corresponds to the JSON property `instances`
        # @return [Array<String>]
        attr_accessor :instances
      
        # The maximal action that should be performed on the instances. By default
        # REPLACE. This field is deprecated, please use most_disruptive_allowed_action.
        # Corresponds to the JSON property `maximalAction`
        # @return [String]
        attr_accessor :maximal_action
      
        # The minimal action that you want to perform on each instance during the update:
        # 
        # - REPLACE: At minimum, delete the instance and create it again.
        # - RESTART: Stop the instance and start it again.
        # - REFRESH: Do not stop the instance.
        # - NONE: Do not disrupt the instance at all.  By default, the minimum action is
        # NONE. If your update requires a more disruptive action than you set with this
        # flag, the necessary action is performed to execute the update.
        # Corresponds to the JSON property `minimalAction`
        # @return [String]
        attr_accessor :minimal_action
      
        # The most disruptive action that you want to perform on each instance during
        # the update:
        # - REPLACE: Delete the instance and create it again.
        # - RESTART: Stop the instance and start it again.
        # - REFRESH: Do not stop the instance.
        # - NONE: Do not disrupt the instance at all.  By default, the most disruptive
        # allowed action is REPLACE. If your update requires a more disruptive action
        # than you set with this flag, the update request will fail.
        # Corresponds to the JSON property `mostDisruptiveAllowedAction`
        # @return [String]
        attr_accessor :most_disruptive_allowed_action
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @all_instances = args[:all_instances] if args.key?(:all_instances)
          @instances = args[:instances] if args.key?(:instances)
          @maximal_action = args[:maximal_action] if args.key?(:maximal_action)
          @minimal_action = args[:minimal_action] if args.key?(:minimal_action)
          @most_disruptive_allowed_action = args[:most_disruptive_allowed_action] if args.key?(:most_disruptive_allowed_action)
        end
      end
      
      # RegionInstanceGroupManagers.createInstances
      class RegionInstanceGroupManagersCreateInstancesRequest
        include Google::Apis::Core::Hashable
      
        # [Required] List of specifications of per-instance configs.
        # Corresponds to the JSON property `instances`
        # @return [Array<Google::Apis::ComputeAlpha::PerInstanceConfig>]
        attr_accessor :instances
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @instances = args[:instances] if args.key?(:instances)
        end
      end
      
      # 
      class RegionInstanceGroupManagersDeleteInstancesRequest
        include Google::Apis::Core::Hashable
      
        # The URLs of one or more instances to delete. This can be a full URL or a
        # partial URL, such as zones/[ZONE]/instances/[INSTANCE_NAME].
        # Corresponds to the JSON property `instances`
        # @return [Array<String>]
        attr_accessor :instances
      
        # If false and the request contains references to instances that cannot be
        # deleted (that is, instances that are not in the group or are already deleted),
        # the request fails. Otherwise, such instances are ignored.
        # Corresponds to the JSON property `skipInapplicableInstances`
        # @return [Boolean]
        attr_accessor :skip_inapplicable_instances
        alias_method :skip_inapplicable_instances?, :skip_inapplicable_instances
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @instances = args[:instances] if args.key?(:instances)
          @skip_inapplicable_instances = args[:skip_inapplicable_instances] if args.key?(:skip_inapplicable_instances)
        end
      end
      
      # 
      class RegionInstanceGroupManagersListErrorsResponse
        include Google::Apis::Core::Hashable
      
        # [Output Only] The list of errors of the managed instance group.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::InstanceManagedByIgmError>]
        attr_accessor :items
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @items = args[:items] if args.key?(:items)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
        end
      end
      
      # 
      class RegionInstanceGroupManagersListInstanceConfigsResp
        include Google::Apis::Core::Hashable
      
        # [Output Only] The list of PerInstanceConfig.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::PerInstanceConfig>]
        attr_accessor :items
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::RegionInstanceGroupManagersListInstanceConfigsResp::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @items = args[:items] if args.key?(:items)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::RegionInstanceGroupManagersListInstanceConfigsResp::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class RegionInstanceGroupManagersListInstancesResponse
        include Google::Apis::Core::Hashable
      
        # A list of managed instances.
        # Corresponds to the JSON property `managedInstances`
        # @return [Array<Google::Apis::ComputeAlpha::ManagedInstance>]
        attr_accessor :managed_instances
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @managed_instances = args[:managed_instances] if args.key?(:managed_instances)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
        end
      end
      
      # 
      class RegionInstanceGroupManagersRecreateRequest
        include Google::Apis::Core::Hashable
      
        # The URLs of one or more instances to recreate. This can be a full URL or a
        # partial URL, such as zones/[ZONE]/instances/[INSTANCE_NAME].
        # Corresponds to the JSON property `instances`
        # @return [Array<String>]
        attr_accessor :instances
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @instances = args[:instances] if args.key?(:instances)
        end
      end
      
      # 
      class RegionInstanceGroupManagersSetAutoHealingRequest
        include Google::Apis::Core::Hashable
      
        # 
        # Corresponds to the JSON property `autoHealingPolicies`
        # @return [Array<Google::Apis::ComputeAlpha::InstanceGroupManagerAutoHealingPolicy>]
        attr_accessor :auto_healing_policies
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @auto_healing_policies = args[:auto_healing_policies] if args.key?(:auto_healing_policies)
        end
      end
      
      # 
      class RegionInstanceGroupManagersSetTargetPoolsRequest
        include Google::Apis::Core::Hashable
      
        # Fingerprint of the target pools information, which is a hash of the contents.
        # This field is used for optimistic locking when you update the target pool
        # entries. This field is optional.
        # Corresponds to the JSON property `fingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :fingerprint
      
        # The URL of all TargetPool resources to which instances in the instanceGroup
        # field are added. The target pools automatically apply to all of the instances
        # in the managed instance group.
        # Corresponds to the JSON property `targetPools`
        # @return [Array<String>]
        attr_accessor :target_pools
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @fingerprint = args[:fingerprint] if args.key?(:fingerprint)
          @target_pools = args[:target_pools] if args.key?(:target_pools)
        end
      end
      
      # 
      class RegionInstanceGroupManagersSetTemplateRequest
        include Google::Apis::Core::Hashable
      
        # URL of the InstanceTemplate resource from which all new instances will be
        # created.
        # Corresponds to the JSON property `instanceTemplate`
        # @return [String]
        attr_accessor :instance_template
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @instance_template = args[:instance_template] if args.key?(:instance_template)
        end
      end
      
      # 
      class RegionInstanceGroupsListInstances
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of InstanceWithNamedPorts resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::InstanceWithNamedPorts>]
        attr_accessor :items
      
        # The resource type.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::RegionInstanceGroupsListInstances::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::RegionInstanceGroupsListInstances::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class RegionInstanceGroupsListInstancesRequest
        include Google::Apis::Core::Hashable
      
        # Instances in which state should be returned. Valid options are: 'ALL', '
        # RUNNING'. By default, it lists all instances.
        # Corresponds to the JSON property `instanceState`
        # @return [String]
        attr_accessor :instance_state
      
        # Name of port user is interested in. It is optional. If it is set, only
        # information about this ports will be returned. If it is not set, all the named
        # ports will be returned. Always lists all instances.
        # Corresponds to the JSON property `portName`
        # @return [String]
        attr_accessor :port_name
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @instance_state = args[:instance_state] if args.key?(:instance_state)
          @port_name = args[:port_name] if args.key?(:port_name)
        end
      end
      
      # 
      class RegionInstanceGroupsSetNamedPortsRequest
        include Google::Apis::Core::Hashable
      
        # The fingerprint of the named ports information for this instance group. Use
        # this optional property to prevent conflicts when multiple users change the
        # named ports settings concurrently. Obtain the fingerprint with the
        # instanceGroups.get method. Then, include the fingerprint in your request to
        # ensure that you do not overwrite changes that were applied from another
        # concurrent request.
        # Corresponds to the JSON property `fingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :fingerprint
      
        # The list of named ports to set for this instance group.
        # Corresponds to the JSON property `namedPorts`
        # @return [Array<Google::Apis::ComputeAlpha::NamedPort>]
        attr_accessor :named_ports
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @fingerprint = args[:fingerprint] if args.key?(:fingerprint)
          @named_ports = args[:named_ports] if args.key?(:named_ports)
        end
      end
      
      # 
      class RegionInstantSnapshotsExportRequest
        include Google::Apis::Core::Hashable
      
        # Parameters to export the changed blocks.
        # Corresponds to the JSON property `exportParams`
        # @return [Google::Apis::ComputeAlpha::InstantSnapshotExportParams]
        attr_accessor :export_params
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @export_params = args[:export_params] if args.key?(:export_params)
        end
      end
      
      # Contains a list of region resources.
      class RegionList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of Region resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::Region>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#regionList for lists of regions.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::RegionList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::RegionList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class RegionSetLabelsRequest
        include Google::Apis::Core::Hashable
      
        # The fingerprint of the previous set of labels for this resource, used to
        # detect conflicts. The fingerprint is initially generated by Compute Engine and
        # changes after every request to modify or update labels. You must always
        # provide an up-to-date fingerprint hash in order to update or change labels.
        # Make a get() request to the resource to get the latest fingerprint.
        # Corresponds to the JSON property `labelFingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :label_fingerprint
      
        # The labels to set for this resource.
        # Corresponds to the JSON property `labels`
        # @return [Hash<String,String>]
        attr_accessor :labels
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @label_fingerprint = args[:label_fingerprint] if args.key?(:label_fingerprint)
          @labels = args[:labels] if args.key?(:labels)
        end
      end
      
      # 
      class RegionSetPolicyRequest
        include Google::Apis::Core::Hashable
      
        # Flatten Policy to create a backwacd compatible wire-format. Deprecated. Use '
        # policy' to specify bindings.
        # Corresponds to the JSON property `bindings`
        # @return [Array<Google::Apis::ComputeAlpha::Binding>]
        attr_accessor :bindings
      
        # Flatten Policy to create a backward compatible wire-format. Deprecated. Use '
        # policy' to specify the etag.
        # Corresponds to the JSON property `etag`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :etag
      
        # An Identity and Access Management (IAM) policy, which specifies access
        # controls for Google Cloud resources.
        # A `Policy` is a collection of `bindings`. A `binding` binds one or more `
        # members` to a single `role`. Members can be user accounts, service accounts,
        # Google groups, and domains (such as G Suite). A `role` is a named list of
        # permissions; each `role` can be an IAM predefined role or a user-created
        # custom role.
        # For some types of Google Cloud resources, a `binding` can also specify a `
        # condition`, which is a logical expression that allows access to a resource
        # only if the expression evaluates to `true`. A condition can add constraints
        # based on attributes of the request, the resource, or both. To learn which
        # resources support conditions in their IAM policies, see the [IAM documentation]
        # (https://cloud.google.com/iam/help/conditions/resource-policies).
        # **JSON example:**
        # ` "bindings": [ ` "role": "roles/resourcemanager.organizationAdmin", "members":
        # [ "user:mike@example.com", "group:admins@example.com", "domain:google.com", "
        # serviceAccount:my-project-id@appspot.gserviceaccount.com" ] `, ` "role": "
        # roles/resourcemanager.organizationViewer", "members": [ "user:eve@example.com"
        # ], "condition": ` "title": "expirable access", "description": "Does not grant
        # access after Sep 2020", "expression": "request.time < timestamp('2020-10-01T00:
        # 00:00.000Z')", ` ` ], "etag": "BwWWja0YfJA=", "version": 3 `
        # **YAML example:**
        # bindings: - members: - user:mike@example.com - group:admins@example.com -
        # domain:google.com - serviceAccount:my-project-id@appspot.gserviceaccount.com
        # role: roles/resourcemanager.organizationAdmin - members: - user:eve@example.
        # com role: roles/resourcemanager.organizationViewer condition: title: expirable
        # access description: Does not grant access after Sep 2020 expression: request.
        # time < timestamp('2020-10-01T00:00:00.000Z') - etag: BwWWja0YfJA= - version: 3
        # For a description of IAM and its features, see the [IAM documentation](https://
        # cloud.google.com/iam/docs/).
        # Corresponds to the JSON property `policy`
        # @return [Google::Apis::ComputeAlpha::Policy]
        attr_accessor :policy
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @bindings = args[:bindings] if args.key?(:bindings)
          @etag = args[:etag] if args.key?(:etag)
          @policy = args[:policy] if args.key?(:policy)
        end
      end
      
      # 
      class RegionTargetHttpsProxiesSetSslCertificatesRequest
        include Google::Apis::Core::Hashable
      
        # New set of SslCertificate resources to associate with this TargetHttpsProxy
        # resource. Currently exactly one SslCertificate resource must be specified.
        # Corresponds to the JSON property `sslCertificates`
        # @return [Array<String>]
        attr_accessor :ssl_certificates
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @ssl_certificates = args[:ssl_certificates] if args.key?(:ssl_certificates)
        end
      end
      
      # 
      class RegionUrlMapsValidateRequest
        include Google::Apis::Core::Hashable
      
        # Represents a URL Map resource.
        # Google Compute Engine has two URL Map resources:
        # * [Global](/compute/docs/reference/rest/`$api_version`/urlMaps) * [Regional](/
        # compute/docs/reference/rest/`$api_version`/regionUrlMaps)
        # A URL map resource is a component of certain types of GCP load balancers and
        # Traffic Director.
        # * urlMaps are used by external HTTP(S) load balancers and Traffic Director. *
        # regionUrlMaps are used by internal HTTP(S) load balancers.
        # For a list of supported URL map features by load balancer type, see the  Load
        # balancing features: Routing and traffic management table.
        # For a list of supported URL map features for Traffic Director, see the
        # Traffic Director features: Routing and traffic management table.
        # This resource defines mappings from host names and URL paths to either a
        # backend service or a backend bucket.
        # To use the global urlMaps resource, the backend service must have a
        # loadBalancingScheme of either EXTERNAL or INTERNAL_SELF_MANAGED. To use the
        # regionUrlMaps resource, the backend service must have a loadBalancingScheme of
        # INTERNAL_MANAGED. For more information, read URL Map Concepts.
        # Corresponds to the JSON property `resource`
        # @return [Google::Apis::ComputeAlpha::UrlMap]
        attr_accessor :resource
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @resource = args[:resource] if args.key?(:resource)
        end
      end
      
      # A policy that specifies how requests intended for the route's backends are
      # shadowed to a separate mirrored backend service. Loadbalancer does not wait
      # for responses from the shadow service. Prior to sending traffic to the shadow
      # service, the host / authority header is suffixed with -shadow.
      class RequestMirrorPolicy
        include Google::Apis::Core::Hashable
      
        # The full or partial URL to the BackendService resource being mirrored to.
        # Corresponds to the JSON property `backendService`
        # @return [String]
        attr_accessor :backend_service
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @backend_service = args[:backend_service] if args.key?(:backend_service)
        end
      end
      
      # Represents a reservation resource. A reservation ensures that capacity is held
      # in a specific zone even if the reserved VMs are not running. For more
      # information, read  Reserving zonal resources. (== resource_for `$api_version`.
      # reservations ==)
      class Reservation
        include Google::Apis::Core::Hashable
      
        # [Output Only] Full or partial URL to a parent commitment. This field displays
        # for reservations that are tied to a commitment.
        # Corresponds to the JSON property `commitment`
        # @return [String]
        attr_accessor :commitment
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] Type of the resource. Always compute#reservations for
        # reservations.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # The name of the resource, provided by the client when initially creating the
        # resource. The resource name must be 1-63 characters long, and comply with
        # RFC1035. Specifically, the name must be 1-63 characters long and match the
        # regular expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the first
        # character must be a lowercase letter, and all following characters must be a
        # dash, lowercase letter, or digit, except the last character, which cannot be a
        # dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # [Output Only] Server-defined fully-qualified URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # Share-settings for shared-reservation
        # Corresponds to the JSON property `shareSettings`
        # @return [Google::Apis::ComputeAlpha::AllocationShareSettings]
        attr_accessor :share_settings
      
        # This reservation type allows to pre allocate specific instance configuration.
        # Corresponds to the JSON property `specificReservation`
        # @return [Google::Apis::ComputeAlpha::AllocationSpecificSkuReservation]
        attr_accessor :specific_reservation
      
        # Indicates whether the reservation can be consumed by VMs with affinity for "
        # any" reservation. If the field is set, then only VMs that target the
        # reservation by name can consume from this reservation.
        # Corresponds to the JSON property `specificReservationRequired`
        # @return [Boolean]
        attr_accessor :specific_reservation_required
        alias_method :specific_reservation_required?, :specific_reservation_required
      
        # [Output Only] The status of the reservation.
        # Corresponds to the JSON property `status`
        # @return [String]
        attr_accessor :status
      
        # Zone in which the reservation resides. A zone must be provided if the
        # reservation is created within a commitment.
        # Corresponds to the JSON property `zone`
        # @return [String]
        attr_accessor :zone
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @commitment = args[:commitment] if args.key?(:commitment)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @name = args[:name] if args.key?(:name)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @share_settings = args[:share_settings] if args.key?(:share_settings)
          @specific_reservation = args[:specific_reservation] if args.key?(:specific_reservation)
          @specific_reservation_required = args[:specific_reservation_required] if args.key?(:specific_reservation_required)
          @status = args[:status] if args.key?(:status)
          @zone = args[:zone] if args.key?(:zone)
        end
      end
      
      # Specifies the reservations that this instance can consume from.
      class ReservationAffinity
        include Google::Apis::Core::Hashable
      
        # Specifies the type of reservation from which this instance can consume
        # resources: ANY_RESERVATION (default), SPECIFIC_RESERVATION, or NO_RESERVATION.
        # See  Consuming reserved instances for examples.
        # Corresponds to the JSON property `consumeReservationType`
        # @return [String]
        attr_accessor :consume_reservation_type
      
        # Corresponds to the label key of a reservation resource. To target a
        # SPECIFIC_RESERVATION by name, specify googleapis.com/reservation-name as the
        # key and specify the name of your reservation as its value.
        # Corresponds to the JSON property `key`
        # @return [String]
        attr_accessor :key
      
        # Corresponds to the label values of a reservation resource.
        # Corresponds to the JSON property `values`
        # @return [Array<String>]
        attr_accessor :values
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @consume_reservation_type = args[:consume_reservation_type] if args.key?(:consume_reservation_type)
          @key = args[:key] if args.key?(:key)
          @values = args[:values] if args.key?(:values)
        end
      end
      
      # Contains a list of reservations.
      class ReservationAggregatedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of Allocation resources.
        # Corresponds to the JSON property `items`
        # @return [Hash<String,Google::Apis::ComputeAlpha::ReservationsScopedList>]
        attr_accessor :items
      
        # Type of resource.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Unreachable resources.
        # Corresponds to the JSON property `unreachables`
        # @return [Array<String>]
        attr_accessor :unreachables
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::ReservationAggregatedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @unreachables = args[:unreachables] if args.key?(:unreachables)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::ReservationAggregatedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class ReservationList
        include Google::Apis::Core::Hashable
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # [Output Only] A list of Allocation resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::Reservation>]
        attr_accessor :items
      
        # [Output Only] Type of resource.Always compute#reservationsList for listsof
        # reservations
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::ReservationList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::ReservationList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class ReservationsResizeRequest
        include Google::Apis::Core::Hashable
      
        # Number of allocated resources can be resized with minimum = 1 and maximum =
        # 1000.
        # Corresponds to the JSON property `specificSkuCount`
        # @return [Fixnum]
        attr_accessor :specific_sku_count
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @specific_sku_count = args[:specific_sku_count] if args.key?(:specific_sku_count)
        end
      end
      
      # 
      class ReservationsScopedList
        include Google::Apis::Core::Hashable
      
        # A list of reservations contained in this scope.
        # Corresponds to the JSON property `reservations`
        # @return [Array<Google::Apis::ComputeAlpha::Reservation>]
        attr_accessor :reservations
      
        # Informational warning which replaces the list of reservations when the list is
        # empty.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::ReservationsScopedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @reservations = args[:reservations] if args.key?(:reservations)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # Informational warning which replaces the list of reservations when the list is
        # empty.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::ReservationsScopedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Commitment for a particular resource (a Commitment is composed of one or more
      # of these).
      class ResourceCommitment
        include Google::Apis::Core::Hashable
      
        # Name of the accelerator type resource. Applicable only when the type is
        # ACCELERATOR.
        # Corresponds to the JSON property `acceleratorType`
        # @return [String]
        attr_accessor :accelerator_type
      
        # The amount of the resource purchased (in a type-dependent unit, such as bytes).
        # For vCPUs, this can just be an integer. For memory, this must be provided in
        # MB. Memory must be a multiple of 256 MB, with up to 6.5GB of memory per every
        # vCPU.
        # Corresponds to the JSON property `amount`
        # @return [Fixnum]
        attr_accessor :amount
      
        # Type of resource for which this commitment applies. Possible values are VCPU
        # and MEMORY
        # Corresponds to the JSON property `type`
        # @return [String]
        attr_accessor :type
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @accelerator_type = args[:accelerator_type] if args.key?(:accelerator_type)
          @amount = args[:amount] if args.key?(:amount)
          @type = args[:type] if args.key?(:type)
        end
      end
      
      # 
      class ResourceGroupReference
        include Google::Apis::Core::Hashable
      
        # A URI referencing one of the instance groups or network endpoint groups listed
        # in the backend service.
        # Corresponds to the JSON property `group`
        # @return [String]
        attr_accessor :group
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @group = args[:group] if args.key?(:group)
        end
      end
      
      # 
      class ResourcePoliciesScopedList
        include Google::Apis::Core::Hashable
      
        # A list of resourcePolicies contained in this scope.
        # Corresponds to the JSON property `resourcePolicies`
        # @return [Array<Google::Apis::ComputeAlpha::ResourcePolicy>]
        attr_accessor :resource_policies
      
        # Informational warning which replaces the list of resourcePolicies when the
        # list is empty.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::ResourcePoliciesScopedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @resource_policies = args[:resource_policies] if args.key?(:resource_policies)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # Informational warning which replaces the list of resourcePolicies when the
        # list is empty.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::ResourcePoliciesScopedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Represents a Resource Policy resource. You can use resource policies to
      # schedule actions for some Compute Engine resources. For example, you can use
      # them to schedule persistent disk snapshots.
      # (== resource_for `$api_version`.resourcePolicies ==)
      class ResourcePolicy
        include Google::Apis::Core::Hashable
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # 
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # A GroupPlacementPolicy specifies resource placement configuration. It
        # specifies the failure bucket separation as well as network locality
        # Corresponds to the JSON property `groupPlacementPolicy`
        # @return [Google::Apis::ComputeAlpha::ResourcePolicyGroupPlacementPolicy]
        attr_accessor :group_placement_policy
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # An InstanceSchedulePolicy specifies when and how frequent certain operations
        # are performed on the instance.
        # Corresponds to the JSON property `instanceSchedulePolicy`
        # @return [Google::Apis::ComputeAlpha::ResourcePolicyInstanceSchedulePolicy]
        attr_accessor :instance_schedule_policy
      
        # [Output Only] Type of the resource. Always compute#resource_policies for
        # resource policies.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # The name of the resource, provided by the client when initially creating the
        # resource. The resource name must be 1-63 characters long, and comply with
        # RFC1035. Specifically, the name must be 1-63 characters long and match the
        # regular expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the first
        # character must be a lowercase letter, and all following characters must be a
        # dash, lowercase letter, or digit, except the last character, which cannot be a
        # dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # 
        # Corresponds to the JSON property `region`
        # @return [String]
        attr_accessor :region
      
        # [Output Only] Server-defined fully-qualified URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # A snapshot schedule policy specifies when and how frequently snapshots are to
        # be created for the target disk. Also specifies how many and how long these
        # scheduled snapshots should be retained.
        # Corresponds to the JSON property `snapshotSchedulePolicy`
        # @return [Google::Apis::ComputeAlpha::ResourcePolicySnapshotSchedulePolicy]
        attr_accessor :snapshot_schedule_policy
      
        # [Output Only] The status of resource policy creation.
        # Corresponds to the JSON property `status`
        # @return [String]
        attr_accessor :status
      
        # Resource policy applicable to VMs for infrastructure maintenance.
        # Corresponds to the JSON property `vmMaintenancePolicy`
        # @return [Google::Apis::ComputeAlpha::ResourcePolicyVmMaintenancePolicy]
        attr_accessor :vm_maintenance_policy
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @group_placement_policy = args[:group_placement_policy] if args.key?(:group_placement_policy)
          @id = args[:id] if args.key?(:id)
          @instance_schedule_policy = args[:instance_schedule_policy] if args.key?(:instance_schedule_policy)
          @kind = args[:kind] if args.key?(:kind)
          @name = args[:name] if args.key?(:name)
          @region = args[:region] if args.key?(:region)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @snapshot_schedule_policy = args[:snapshot_schedule_policy] if args.key?(:snapshot_schedule_policy)
          @status = args[:status] if args.key?(:status)
          @vm_maintenance_policy = args[:vm_maintenance_policy] if args.key?(:vm_maintenance_policy)
        end
      end
      
      # Contains a list of resourcePolicies.
      class ResourcePolicyAggregatedList
        include Google::Apis::Core::Hashable
      
        # 
        # Corresponds to the JSON property `etag`
        # @return [String]
        attr_accessor :etag
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of ResourcePolicy resources.
        # Corresponds to the JSON property `items`
        # @return [Hash<String,Google::Apis::ComputeAlpha::ResourcePoliciesScopedList>]
        attr_accessor :items
      
        # Type of resource.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Unreachable resources.
        # Corresponds to the JSON property `unreachables`
        # @return [Array<String>]
        attr_accessor :unreachables
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::ResourcePolicyAggregatedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @etag = args[:etag] if args.key?(:etag)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @unreachables = args[:unreachables] if args.key?(:unreachables)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::ResourcePolicyAggregatedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Time window specified for daily operations.
      class ResourcePolicyDailyCycle
        include Google::Apis::Core::Hashable
      
        # Defines a schedule with units measured in months. The value determines how
        # many months pass between the start of each cycle.
        # Corresponds to the JSON property `daysInCycle`
        # @return [Fixnum]
        attr_accessor :days_in_cycle
      
        # [Output only] A predetermined duration for the window, automatically chosen to
        # be the smallest possible in the given scenario.
        # Corresponds to the JSON property `duration`
        # @return [String]
        attr_accessor :duration
      
        # Start time of the window. This must be in UTC format that resolves to one of
        # 00:00, 04:00, 08:00, 12:00, 16:00, or 20:00. For example, both 13:00-5 and 08:
        # 00 are valid.
        # Corresponds to the JSON property `startTime`
        # @return [String]
        attr_accessor :start_time
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @days_in_cycle = args[:days_in_cycle] if args.key?(:days_in_cycle)
          @duration = args[:duration] if args.key?(:duration)
          @start_time = args[:start_time] if args.key?(:start_time)
        end
      end
      
      # A GroupPlacementPolicy specifies resource placement configuration. It
      # specifies the failure bucket separation as well as network locality
      class ResourcePolicyGroupPlacementPolicy
        include Google::Apis::Core::Hashable
      
        # The number of availability domains instances will be spread across. If two
        # instances are in different availability domain, they will not be put in the
        # same low latency network
        # Corresponds to the JSON property `availabilityDomainCount`
        # @return [Fixnum]
        attr_accessor :availability_domain_count
      
        # Specifies network collocation
        # Corresponds to the JSON property `collocation`
        # @return [String]
        attr_accessor :collocation
      
        # Specifies network locality
        # Corresponds to the JSON property `locality`
        # @return [String]
        attr_accessor :locality
      
        # Scope specifies the availability domain to which the VMs should be spread.
        # Corresponds to the JSON property `scope`
        # @return [String]
        attr_accessor :scope
      
        # Specifies instances to hosts placement relationship
        # Corresponds to the JSON property `style`
        # @return [String]
        attr_accessor :style
      
        # Number of vms in this placement group
        # Corresponds to the JSON property `vmCount`
        # @return [Fixnum]
        attr_accessor :vm_count
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @availability_domain_count = args[:availability_domain_count] if args.key?(:availability_domain_count)
          @collocation = args[:collocation] if args.key?(:collocation)
          @locality = args[:locality] if args.key?(:locality)
          @scope = args[:scope] if args.key?(:scope)
          @style = args[:style] if args.key?(:style)
          @vm_count = args[:vm_count] if args.key?(:vm_count)
        end
      end
      
      # Time window specified for hourly operations.
      class ResourcePolicyHourlyCycle
        include Google::Apis::Core::Hashable
      
        # [Output only] Duration of the time window, automatically chosen to be smallest
        # possible in the given scenario.
        # Corresponds to the JSON property `duration`
        # @return [String]
        attr_accessor :duration
      
        # Defines a schedule with units measured in hours. The value determines how many
        # hours pass between the start of each cycle.
        # Corresponds to the JSON property `hoursInCycle`
        # @return [Fixnum]
        attr_accessor :hours_in_cycle
      
        # Time within the window to start the operations. It must be in format "HH:MM",
        # where HH : [00-23] and MM : [00-00] GMT.
        # Corresponds to the JSON property `startTime`
        # @return [String]
        attr_accessor :start_time
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @duration = args[:duration] if args.key?(:duration)
          @hours_in_cycle = args[:hours_in_cycle] if args.key?(:hours_in_cycle)
          @start_time = args[:start_time] if args.key?(:start_time)
        end
      end
      
      # An InstanceSchedulePolicy specifies when and how frequent certain operations
      # are performed on the instance.
      class ResourcePolicyInstanceSchedulePolicy
        include Google::Apis::Core::Hashable
      
        # Specifies the time zone to be used in interpreting Schedule.schedule. The
        # value of this field must be a time zone name from the tz database: http://en.
        # wikipedia.org/wiki/Tz_database.
        # Corresponds to the JSON property `timeZone`
        # @return [String]
        attr_accessor :time_zone
      
        # Schedule for an instance operation.
        # Corresponds to the JSON property `vmStartSchedule`
        # @return [Google::Apis::ComputeAlpha::ResourcePolicyInstanceSchedulePolicySchedule]
        attr_accessor :vm_start_schedule
      
        # Schedule for an instance operation.
        # Corresponds to the JSON property `vmStopSchedule`
        # @return [Google::Apis::ComputeAlpha::ResourcePolicyInstanceSchedulePolicySchedule]
        attr_accessor :vm_stop_schedule
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @time_zone = args[:time_zone] if args.key?(:time_zone)
          @vm_start_schedule = args[:vm_start_schedule] if args.key?(:vm_start_schedule)
          @vm_stop_schedule = args[:vm_stop_schedule] if args.key?(:vm_stop_schedule)
        end
      end
      
      # Schedule for an instance operation.
      class ResourcePolicyInstanceSchedulePolicySchedule
        include Google::Apis::Core::Hashable
      
        # Specifies the frequency for the operation, using the unix-cron format.
        # Corresponds to the JSON property `schedule`
        # @return [String]
        attr_accessor :schedule
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @schedule = args[:schedule] if args.key?(:schedule)
        end
      end
      
      # 
      class ResourcePolicyList
        include Google::Apis::Core::Hashable
      
        # 
        # Corresponds to the JSON property `etag`
        # @return [String]
        attr_accessor :etag
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # [Output Only] A list of ResourcePolicy resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::ResourcePolicy>]
        attr_accessor :items
      
        # [Output Only] Type of resource.Always compute#resourcePoliciesList for listsof
        # resourcePolicies
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::ResourcePolicyList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @etag = args[:etag] if args.key?(:etag)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::ResourcePolicyList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # A snapshot schedule policy specifies when and how frequently snapshots are to
      # be created for the target disk. Also specifies how many and how long these
      # scheduled snapshots should be retained.
      class ResourcePolicySnapshotSchedulePolicy
        include Google::Apis::Core::Hashable
      
        # Policy for retention of scheduled snapshots.
        # Corresponds to the JSON property `retentionPolicy`
        # @return [Google::Apis::ComputeAlpha::ResourcePolicySnapshotSchedulePolicyRetentionPolicy]
        attr_accessor :retention_policy
      
        # A schedule for disks where the schedueled operations are performed.
        # Corresponds to the JSON property `schedule`
        # @return [Google::Apis::ComputeAlpha::ResourcePolicySnapshotSchedulePolicySchedule]
        attr_accessor :schedule
      
        # Specified snapshot properties for scheduled snapshots created by this policy.
        # Corresponds to the JSON property `snapshotProperties`
        # @return [Google::Apis::ComputeAlpha::ResourcePolicySnapshotSchedulePolicySnapshotProperties]
        attr_accessor :snapshot_properties
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @retention_policy = args[:retention_policy] if args.key?(:retention_policy)
          @schedule = args[:schedule] if args.key?(:schedule)
          @snapshot_properties = args[:snapshot_properties] if args.key?(:snapshot_properties)
        end
      end
      
      # Policy for retention of scheduled snapshots.
      class ResourcePolicySnapshotSchedulePolicyRetentionPolicy
        include Google::Apis::Core::Hashable
      
        # Maximum age of the snapshot that is allowed to be kept.
        # Corresponds to the JSON property `maxRetentionDays`
        # @return [Fixnum]
        attr_accessor :max_retention_days
      
        # TODO(b/165626794): Remove this field Specifies the behavior to apply to
        # existing, scheduled snapshots snapshots if the policy is changed.
        # Corresponds to the JSON property `onPolicySwitch`
        # @return [String]
        attr_accessor :on_policy_switch
      
        # Specifies the behavior to apply to scheduled snapshots when the source disk is
        # deleted.
        # Corresponds to the JSON property `onSourceDiskDelete`
        # @return [String]
        attr_accessor :on_source_disk_delete
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @max_retention_days = args[:max_retention_days] if args.key?(:max_retention_days)
          @on_policy_switch = args[:on_policy_switch] if args.key?(:on_policy_switch)
          @on_source_disk_delete = args[:on_source_disk_delete] if args.key?(:on_source_disk_delete)
        end
      end
      
      # A schedule for disks where the schedueled operations are performed.
      class ResourcePolicySnapshotSchedulePolicySchedule
        include Google::Apis::Core::Hashable
      
        # Time window specified for daily operations.
        # Corresponds to the JSON property `dailySchedule`
        # @return [Google::Apis::ComputeAlpha::ResourcePolicyDailyCycle]
        attr_accessor :daily_schedule
      
        # Time window specified for hourly operations.
        # Corresponds to the JSON property `hourlySchedule`
        # @return [Google::Apis::ComputeAlpha::ResourcePolicyHourlyCycle]
        attr_accessor :hourly_schedule
      
        # Time window specified for weekly operations.
        # Corresponds to the JSON property `weeklySchedule`
        # @return [Google::Apis::ComputeAlpha::ResourcePolicyWeeklyCycle]
        attr_accessor :weekly_schedule
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @daily_schedule = args[:daily_schedule] if args.key?(:daily_schedule)
          @hourly_schedule = args[:hourly_schedule] if args.key?(:hourly_schedule)
          @weekly_schedule = args[:weekly_schedule] if args.key?(:weekly_schedule)
        end
      end
      
      # Specified snapshot properties for scheduled snapshots created by this policy.
      class ResourcePolicySnapshotSchedulePolicySnapshotProperties
        include Google::Apis::Core::Hashable
      
        # Chain name that the snapshot is created in.
        # Corresponds to the JSON property `chainName`
        # @return [String]
        attr_accessor :chain_name
      
        # Indication to perform a 'guest aware' snapshot.
        # Corresponds to the JSON property `guestFlush`
        # @return [Boolean]
        attr_accessor :guest_flush
        alias_method :guest_flush?, :guest_flush
      
        # Labels to apply to scheduled snapshots. These can be later modified by the
        # setLabels method. Label values may be empty.
        # Corresponds to the JSON property `labels`
        # @return [Hash<String,String>]
        attr_accessor :labels
      
        # Cloud Storage bucket storage location of the auto snapshot (regional or multi-
        # regional).
        # Corresponds to the JSON property `storageLocations`
        # @return [Array<String>]
        attr_accessor :storage_locations
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @chain_name = args[:chain_name] if args.key?(:chain_name)
          @guest_flush = args[:guest_flush] if args.key?(:guest_flush)
          @labels = args[:labels] if args.key?(:labels)
          @storage_locations = args[:storage_locations] if args.key?(:storage_locations)
        end
      end
      
      # 
      class ResourcePolicyVmMaintenancePolicy
        include Google::Apis::Core::Hashable
      
        # A concurrency control configuration. Defines a group config that, when
        # attached to an instance, recognizes that instance as part of a group of
        # instances where only up the concurrency_limit of instances in that group can
        # undergo simultaneous maintenance. For more information: go/concurrency-control-
        # design-doc
        # Corresponds to the JSON property `concurrencyControlGroup`
        # @return [Google::Apis::ComputeAlpha::ResourcePolicyVmMaintenancePolicyConcurrencyControl]
        attr_accessor :concurrency_control_group
      
        # A maintenance window for VMs. When set, we restrict our maintenance operations
        # to this window.
        # Corresponds to the JSON property `maintenanceWindow`
        # @return [Google::Apis::ComputeAlpha::ResourcePolicyVmMaintenancePolicyMaintenanceWindow]
        attr_accessor :maintenance_window
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @concurrency_control_group = args[:concurrency_control_group] if args.key?(:concurrency_control_group)
          @maintenance_window = args[:maintenance_window] if args.key?(:maintenance_window)
        end
      end
      
      # A concurrency control configuration. Defines a group config that, when
      # attached to an instance, recognizes that instance as part of a group of
      # instances where only up the concurrency_limit of instances in that group can
      # undergo simultaneous maintenance. For more information: go/concurrency-control-
      # design-doc
      class ResourcePolicyVmMaintenancePolicyConcurrencyControl
        include Google::Apis::Core::Hashable
      
        # 
        # Corresponds to the JSON property `concurrencyLimit`
        # @return [Fixnum]
        attr_accessor :concurrency_limit
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @concurrency_limit = args[:concurrency_limit] if args.key?(:concurrency_limit)
        end
      end
      
      # A maintenance window for VMs. When set, we restrict our maintenance operations
      # to this window.
      class ResourcePolicyVmMaintenancePolicyMaintenanceWindow
        include Google::Apis::Core::Hashable
      
        # Time window specified for daily operations.
        # Corresponds to the JSON property `dailyMaintenanceWindow`
        # @return [Google::Apis::ComputeAlpha::ResourcePolicyDailyCycle]
        attr_accessor :daily_maintenance_window
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @daily_maintenance_window = args[:daily_maintenance_window] if args.key?(:daily_maintenance_window)
        end
      end
      
      # Time window specified for weekly operations.
      class ResourcePolicyWeeklyCycle
        include Google::Apis::Core::Hashable
      
        # Up to 7 intervals/windows, one for each day of the week.
        # Corresponds to the JSON property `dayOfWeeks`
        # @return [Array<Google::Apis::ComputeAlpha::ResourcePolicyWeeklyCycleDayOfWeek>]
        attr_accessor :day_of_weeks
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @day_of_weeks = args[:day_of_weeks] if args.key?(:day_of_weeks)
        end
      end
      
      # 
      class ResourcePolicyWeeklyCycleDayOfWeek
        include Google::Apis::Core::Hashable
      
        # Defines a schedule that runs on specific days of the week. Specify one or more
        # days. The following options are available: MONDAY, TUESDAY, WEDNESDAY,
        # THURSDAY, FRIDAY, SATURDAY, SUNDAY.
        # Corresponds to the JSON property `day`
        # @return [String]
        attr_accessor :day
      
        # [Output only] Duration of the time window, automatically chosen to be smallest
        # possible in the given scenario.
        # Corresponds to the JSON property `duration`
        # @return [String]
        attr_accessor :duration
      
        # Time within the window to start the operations. It must be in format "HH:MM",
        # where HH : [00-23] and MM : [00-00] GMT.
        # Corresponds to the JSON property `startTime`
        # @return [String]
        attr_accessor :start_time
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @day = args[:day] if args.key?(:day)
          @duration = args[:duration] if args.key?(:duration)
          @start_time = args[:start_time] if args.key?(:start_time)
        end
      end
      
      # Represents a Route resource.
      # A route defines a path from VM instances in the VPC network to a specific
      # destination. This destination can be inside or outside the VPC network. For
      # more information, read the Routes overview. (== resource_for `$api_version`.
      # routes ==)
      class Route
        include Google::Apis::Core::Hashable
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this field when you create
        # the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # The destination range of outgoing packets that this route applies to. Both
        # IPv4 and IPv6 are supported.
        # Corresponds to the JSON property `destRange`
        # @return [String]
        attr_accessor :dest_range
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] Type of this resource. Always compute#routes for Route resources.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # Name of the resource. Provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?`. The first character must be a lowercase letter, and all
        # following characters (except for the last character) must be a dash, lowercase
        # letter, or digit. The last character must be a lowercase letter or digit.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # Fully-qualified URL of the network that this route applies to.
        # Corresponds to the JSON property `network`
        # @return [String]
        attr_accessor :network
      
        # The URL to a gateway that should handle matching packets. You can only specify
        # the internet gateway using a full or partial valid URL:  projects/project/
        # global/gateways/default-internet-gateway
        # Corresponds to the JSON property `nextHopGateway`
        # @return [String]
        attr_accessor :next_hop_gateway
      
        # The URL to a forwarding rule of type loadBalancingScheme=INTERNAL that should
        # handle matching packets or the IP address of the forwarding Rule. For example,
        # the following are all valid URLs:
        # - 10.128.0.56
        # - https://www.googleapis.com/compute/v1/projects/project/regions/region/
        # forwardingRules/forwardingRule
        # - regions/region/forwardingRules/forwardingRule
        # Corresponds to the JSON property `nextHopIlb`
        # @return [String]
        attr_accessor :next_hop_ilb
      
        # The URL to an instance that should handle matching packets. You can specify
        # this as a full or partial URL. For example:
        # https://www.googleapis.com/compute/v1/projects/project/zones/zone/instances/
        # Corresponds to the JSON property `nextHopInstance`
        # @return [String]
        attr_accessor :next_hop_instance
      
        # [Output Only] The URL to an InterconnectAttachment which is the next hop for
        # the route. This field will only be populated for the dynamic routes generated
        # by Cloud Router with a linked interconnectAttachment.
        # Corresponds to the JSON property `nextHopInterconnectAttachment`
        # @return [String]
        attr_accessor :next_hop_interconnect_attachment
      
        # The network IP address of an instance that should handle matching packets.
        # Only IPv4 is supported.
        # Corresponds to the JSON property `nextHopIp`
        # @return [String]
        attr_accessor :next_hop_ip
      
        # The URL of the local network if it should handle matching packets.
        # Corresponds to the JSON property `nextHopNetwork`
        # @return [String]
        attr_accessor :next_hop_network
      
        # [Output Only] The network peering name that should handle matching packets,
        # which should conform to RFC1035.
        # Corresponds to the JSON property `nextHopPeering`
        # @return [String]
        attr_accessor :next_hop_peering
      
        # The URL to a VpnTunnel that should handle matching packets.
        # Corresponds to the JSON property `nextHopVpnTunnel`
        # @return [String]
        attr_accessor :next_hop_vpn_tunnel
      
        # The priority of this route. Priority is used to break ties in cases where
        # there is more than one matching route of equal prefix length. In cases where
        # multiple routes have equal prefix length, the one with the lowest-numbered
        # priority value wins. The default value is `1000`. The priority value must be
        # from `0` to `65535`, inclusive.
        # Corresponds to the JSON property `priority`
        # @return [Fixnum]
        attr_accessor :priority
      
        # [Output Only] Server-defined fully-qualified URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # A list of instance tags to which this route applies.
        # Corresponds to the JSON property `tags`
        # @return [Array<String>]
        attr_accessor :tags
      
        # [Output Only] If potential misconfigurations are detected for this route, this
        # field will be populated with warning messages.
        # Corresponds to the JSON property `warnings`
        # @return [Array<Google::Apis::ComputeAlpha::Route::Warning>]
        attr_accessor :warnings
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @dest_range = args[:dest_range] if args.key?(:dest_range)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @name = args[:name] if args.key?(:name)
          @network = args[:network] if args.key?(:network)
          @next_hop_gateway = args[:next_hop_gateway] if args.key?(:next_hop_gateway)
          @next_hop_ilb = args[:next_hop_ilb] if args.key?(:next_hop_ilb)
          @next_hop_instance = args[:next_hop_instance] if args.key?(:next_hop_instance)
          @next_hop_interconnect_attachment = args[:next_hop_interconnect_attachment] if args.key?(:next_hop_interconnect_attachment)
          @next_hop_ip = args[:next_hop_ip] if args.key?(:next_hop_ip)
          @next_hop_network = args[:next_hop_network] if args.key?(:next_hop_network)
          @next_hop_peering = args[:next_hop_peering] if args.key?(:next_hop_peering)
          @next_hop_vpn_tunnel = args[:next_hop_vpn_tunnel] if args.key?(:next_hop_vpn_tunnel)
          @priority = args[:priority] if args.key?(:priority)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @tags = args[:tags] if args.key?(:tags)
          @warnings = args[:warnings] if args.key?(:warnings)
        end
        
        # 
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::Route::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Contains a list of Route resources.
      class RouteList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of Route resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::Route>]
        attr_accessor :items
      
        # Type of resource.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::RouteList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::RouteList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Represents a Cloud Router resource.
      # For more information about Cloud Router, read the Cloud Router overview.
      class Router
        include Google::Apis::Core::Hashable
      
        # BGP information specific to this router.
        # Corresponds to the JSON property `bgp`
        # @return [Google::Apis::ComputeAlpha::RouterBgp]
        attr_accessor :bgp
      
        # BGP information that must be configured into the routing stack to establish
        # BGP peering. This information must specify the peer ASN and either the
        # interface name, IP address, or peer IP address. Please refer to RFC4273.
        # Corresponds to the JSON property `bgpPeers`
        # @return [Array<Google::Apis::ComputeAlpha::RouterBgpPeer>]
        attr_accessor :bgp_peers
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # Field to indicate if a router is dedicated to use with encrypted Interconnect
        # Attachment (Encrypted Interconnect feature).
        # Corresponds to the JSON property `encryptedInterconnectRouter`
        # @return [Boolean]
        attr_accessor :encrypted_interconnect_router
        alias_method :encrypted_interconnect_router?, :encrypted_interconnect_router
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # Router interfaces. Each interface requires either one linked resource, (for
        # example, linkedVpnTunnel), or IP address and IP address range (for example,
        # ipRange), or both.
        # Corresponds to the JSON property `interfaces`
        # @return [Array<Google::Apis::ComputeAlpha::RouterInterface>]
        attr_accessor :interfaces
      
        # [Output Only] Type of resource. Always compute#router for routers.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # Name of the resource. Provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # A list of NAT services created in this router.
        # Corresponds to the JSON property `nats`
        # @return [Array<Google::Apis::ComputeAlpha::RouterNat>]
        attr_accessor :nats
      
        # URI of the network to which this router belongs.
        # Corresponds to the JSON property `network`
        # @return [String]
        attr_accessor :network
      
        # [Output Only] URI of the region where the router resides. You must specify
        # this field as part of the HTTP request URL. It is not settable as a field in
        # the request body.
        # Corresponds to the JSON property `region`
        # @return [String]
        attr_accessor :region
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @bgp = args[:bgp] if args.key?(:bgp)
          @bgp_peers = args[:bgp_peers] if args.key?(:bgp_peers)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @encrypted_interconnect_router = args[:encrypted_interconnect_router] if args.key?(:encrypted_interconnect_router)
          @id = args[:id] if args.key?(:id)
          @interfaces = args[:interfaces] if args.key?(:interfaces)
          @kind = args[:kind] if args.key?(:kind)
          @name = args[:name] if args.key?(:name)
          @nats = args[:nats] if args.key?(:nats)
          @network = args[:network] if args.key?(:network)
          @region = args[:region] if args.key?(:region)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
        end
      end
      
      # Description-tagged IP ranges for the router to advertise.
      class RouterAdvertisedIpRange
        include Google::Apis::Core::Hashable
      
        # User-specified description for the IP range.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # The IP range to advertise. The value must be a CIDR-formatted string.
        # Corresponds to the JSON property `range`
        # @return [String]
        attr_accessor :range
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @description = args[:description] if args.key?(:description)
          @range = args[:range] if args.key?(:range)
        end
      end
      
      # Contains a list of routers.
      class RouterAggregatedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of Router resources.
        # Corresponds to the JSON property `items`
        # @return [Hash<String,Google::Apis::ComputeAlpha::RoutersScopedList>]
        attr_accessor :items
      
        # Type of resource.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Unreachable resources.
        # Corresponds to the JSON property `unreachables`
        # @return [Array<String>]
        attr_accessor :unreachables
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::RouterAggregatedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @unreachables = args[:unreachables] if args.key?(:unreachables)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::RouterAggregatedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class RouterBgp
        include Google::Apis::Core::Hashable
      
        # User-specified flag to indicate which mode to use for advertisement. The
        # options are DEFAULT or CUSTOM.
        # Corresponds to the JSON property `advertiseMode`
        # @return [String]
        attr_accessor :advertise_mode
      
        # User-specified list of prefix groups to advertise in custom mode. This field
        # can only be populated if advertise_mode is CUSTOM and is advertised to all
        # peers of the router. These groups will be advertised in addition to any
        # specified prefixes. Leave this field blank to advertise no custom groups.
        # Corresponds to the JSON property `advertisedGroups`
        # @return [Array<String>]
        attr_accessor :advertised_groups
      
        # User-specified list of individual IP ranges to advertise in custom mode. This
        # field can only be populated if advertise_mode is CUSTOM and is advertised to
        # all peers of the router. These IP ranges will be advertised in addition to any
        # specified groups. Leave this field blank to advertise no custom IP ranges.
        # Corresponds to the JSON property `advertisedIpRanges`
        # @return [Array<Google::Apis::ComputeAlpha::RouterAdvertisedIpRange>]
        attr_accessor :advertised_ip_ranges
      
        # Local BGP Autonomous System Number (ASN). Must be an RFC6996 private ASN,
        # either 16-bit or 32-bit. The value will be fixed for this router resource. All
        # VPN tunnels that link to this router will have the same local ASN.
        # Corresponds to the JSON property `asn`
        # @return [Fixnum]
        attr_accessor :asn
      
        # The interval in seconds between BGP keepalive messages that are sent to the
        # peer.
        # Not currently available publicly.
        # Hold time is three times the interval at which keepalive messages are sent,
        # and the hold time is the maximum number of seconds allowed to elapse between
        # successive keepalive messages that BGP receives from a peer.
        # BGP will use the smaller of either the local hold time value or the peer's
        # hold time value as the hold time for the BGP connection between the two peers.
        # If set, this value must be between 1 and 120. The default is 20.
        # Corresponds to the JSON property `keepaliveInterval`
        # @return [Fixnum]
        attr_accessor :keepalive_interval
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @advertise_mode = args[:advertise_mode] if args.key?(:advertise_mode)
          @advertised_groups = args[:advertised_groups] if args.key?(:advertised_groups)
          @advertised_ip_ranges = args[:advertised_ip_ranges] if args.key?(:advertised_ip_ranges)
          @asn = args[:asn] if args.key?(:asn)
          @keepalive_interval = args[:keepalive_interval] if args.key?(:keepalive_interval)
        end
      end
      
      # 
      class RouterBgpPeer
        include Google::Apis::Core::Hashable
      
        # User-specified flag to indicate which mode to use for advertisement.
        # Corresponds to the JSON property `advertiseMode`
        # @return [String]
        attr_accessor :advertise_mode
      
        # User-specified list of prefix groups to advertise in custom mode, which can
        # take one of the following options:
        # - ALL_SUBNETS: Advertises all available subnets, including peer VPC subnets.
        # - ALL_VPC_SUBNETS: Advertises the router's own VPC subnets.
        # - ALL_PEER_VPC_SUBNETS: Advertises peer subnets of the router's VPC network.
        # Note that this field can only be populated if advertise_mode is CUSTOM and
        # overrides the list defined for the router (in the "bgp" message). These groups
        # are advertised in addition to any specified prefixes. Leave this field blank
        # to advertise no custom groups.
        # Corresponds to the JSON property `advertisedGroups`
        # @return [Array<String>]
        attr_accessor :advertised_groups
      
        # User-specified list of individual IP ranges to advertise in custom mode. This
        # field can only be populated if advertise_mode is CUSTOM and overrides the list
        # defined for the router (in the "bgp" message). These IP ranges are advertised
        # in addition to any specified groups. Leave this field blank to advertise no
        # custom IP ranges.
        # Corresponds to the JSON property `advertisedIpRanges`
        # @return [Array<Google::Apis::ComputeAlpha::RouterAdvertisedIpRange>]
        attr_accessor :advertised_ip_ranges
      
        # The priority of routes advertised to this BGP peer. Where there is more than
        # one matching route of maximum length, the routes with the lowest priority
        # value win.
        # Corresponds to the JSON property `advertisedRoutePriority`
        # @return [Fixnum]
        attr_accessor :advertised_route_priority
      
        # BFD configuration for the BGP peering.
        # Not currently available publicly.
        # Corresponds to the JSON property `bfd`
        # @return [Google::Apis::ComputeAlpha::RouterBgpPeerBfd]
        attr_accessor :bfd
      
        # The status of the BGP peer connection.
        # Not currently available publicly.
        # If set to FALSE, any active session with the peer is terminated and all
        # associated routing information is removed. If set to TRUE, the peer connection
        # can be established with routing information. The default is TRUE.
        # Corresponds to the JSON property `enable`
        # @return [String]
        attr_accessor :enable
      
        # Name of the interface the BGP peer is associated with.
        # Corresponds to the JSON property `interfaceName`
        # @return [String]
        attr_accessor :interface_name
      
        # IP address of the interface inside Google Cloud Platform. Only IPv4 is
        # supported.
        # Corresponds to the JSON property `ipAddress`
        # @return [String]
        attr_accessor :ip_address
      
        # [Output Only] The resource that configures and manages this BGP peer.
        # - MANAGED_BY_USER is the default value and can be managed by you or other
        # users
        # - MANAGED_BY_ATTACHMENT is a BGP peer that is configured and managed by Cloud
        # Interconnect, specifically by an InterconnectAttachment of type PARTNER.
        # Google automatically creates, updates, and deletes this type of BGP peer when
        # the PARTNER InterconnectAttachment is created, updated, or deleted.
        # Corresponds to the JSON property `managementType`
        # @return [String]
        attr_accessor :management_type
      
        # Name of this BGP peer. The name must be 1-63 characters long, and comply with
        # RFC1035. Specifically, the name must be 1-63 characters long and match the
        # regular expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the first
        # character must be a lowercase letter, and all following characters must be a
        # dash, lowercase letter, or digit, except the last character, which cannot be a
        # dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # Peer BGP Autonomous System Number (ASN). Each BGP interface may use a
        # different value.
        # Corresponds to the JSON property `peerAsn`
        # @return [Fixnum]
        attr_accessor :peer_asn
      
        # IP address of the BGP interface outside Google Cloud Platform. Only IPv4 is
        # supported.
        # Corresponds to the JSON property `peerIpAddress`
        # @return [String]
        attr_accessor :peer_ip_address
      
        # URI of the VM instance that is used as third-party router appliances such as
        # Next Gen Firewalls, Virtual Routers, or Router Appliances. The VM instance
        # must be located in zones contained in the same region as this Cloud Router.
        # The VM instance is the peer side of the BGP session.
        # Corresponds to the JSON property `routerApplianceInstance`
        # @return [String]
        attr_accessor :router_appliance_instance
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @advertise_mode = args[:advertise_mode] if args.key?(:advertise_mode)
          @advertised_groups = args[:advertised_groups] if args.key?(:advertised_groups)
          @advertised_ip_ranges = args[:advertised_ip_ranges] if args.key?(:advertised_ip_ranges)
          @advertised_route_priority = args[:advertised_route_priority] if args.key?(:advertised_route_priority)
          @bfd = args[:bfd] if args.key?(:bfd)
          @enable = args[:enable] if args.key?(:enable)
          @interface_name = args[:interface_name] if args.key?(:interface_name)
          @ip_address = args[:ip_address] if args.key?(:ip_address)
          @management_type = args[:management_type] if args.key?(:management_type)
          @name = args[:name] if args.key?(:name)
          @peer_asn = args[:peer_asn] if args.key?(:peer_asn)
          @peer_ip_address = args[:peer_ip_address] if args.key?(:peer_ip_address)
          @router_appliance_instance = args[:router_appliance_instance] if args.key?(:router_appliance_instance)
        end
      end
      
      # 
      class RouterBgpPeerBfd
        include Google::Apis::Core::Hashable
      
        # The minimum interval, in milliseconds, between BFD control packets received
        # from the peer router. The actual value is negotiated between the two routers
        # and is equal to the greater of this value and the transmit interval of the
        # other router.
        # Not currently available publicly.
        # If set, this value must be between 100 and 30000.
        # The default is 300.
        # Corresponds to the JSON property `minReceiveInterval`
        # @return [Fixnum]
        attr_accessor :min_receive_interval
      
        # The minimum interval, in milliseconds, between BFD control packets transmitted
        # to the peer router. The actual value is negotiated between the two routers and
        # is equal to the greater of this value and the corresponding receive interval
        # of the other router.
        # Not currently available publicly.
        # If set, this value must be between 100 and 30000.
        # The default is 300.
        # Corresponds to the JSON property `minTransmitInterval`
        # @return [Fixnum]
        attr_accessor :min_transmit_interval
      
        # The BFD session initialization mode for this BGP peer. If set to ACTIVE, the
        # Cloud Router will initiate the BFD session for this BGP peer. If set to
        # PASSIVE, the Cloud Router will wait for the peer router to initiate the BFD
        # session for this BGP peer. If set to DISABLED, BFD is disabled for this BGP
        # peer. The default is PASSIVE.
        # Corresponds to the JSON property `mode`
        # @return [String]
        attr_accessor :mode
      
        # The number of consecutive BFD packets that must be missed before BFD declares
        # that a peer is unavailable.
        # Not currently available publicly.
        # If set, the value must be a value between 2 and 16.
        # The default is 3.
        # Corresponds to the JSON property `multiplier`
        # @return [Fixnum]
        attr_accessor :multiplier
      
        # The BFD packet mode for this BGP peer. If set to CONTROL_AND_ECHO, BFD echo
        # mode is enabled for this BGP peer. In this mode, if the peer router also has
        # BFD echo mode enabled, BFD echo packets will be sent to the other router. If
        # the peer router does not have BFD echo mode enabled, only control packets will
        # be sent. If set to CONTROL_ONLY, BFD echo mode is disabled for this BGP peer.
        # If this router and the peer router have a multihop connection, this should be
        # set to CONTROL_ONLY as BFD echo mode is only supported on singlehop
        # connections. The default is CONTROL_AND_ECHO.
        # Corresponds to the JSON property `packetMode`
        # @return [String]
        attr_accessor :packet_mode
      
        # The BFD session initialization mode for this BGP peer.
        # Not currently available publicly.
        # If set to ACTIVE, the Cloud Router will initiate the BFD session for this BGP
        # peer. If set to PASSIVE, the Cloud Router will wait for the peer router to
        # initiate the BFD session for this BGP peer. If set to DISABLED, BFD is
        # disabled for this BGP peer. The default is PASSIVE.
        # Corresponds to the JSON property `sessionInitializationMode`
        # @return [String]
        attr_accessor :session_initialization_mode
      
        # The minimum interval, in milliseconds, between BFD control packets transmitted
        # to and received from the peer router when BFD echo mode is enabled on both
        # routers. The actual transmit and receive intervals are negotiated between the
        # two routers and are equal to the greater of this value and the corresponding
        # interval on the other router. If set, this value must be between 1000 and
        # 30000. The default is 5000.
        # Corresponds to the JSON property `slowTimerInterval`
        # @return [Fixnum]
        attr_accessor :slow_timer_interval
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @min_receive_interval = args[:min_receive_interval] if args.key?(:min_receive_interval)
          @min_transmit_interval = args[:min_transmit_interval] if args.key?(:min_transmit_interval)
          @mode = args[:mode] if args.key?(:mode)
          @multiplier = args[:multiplier] if args.key?(:multiplier)
          @packet_mode = args[:packet_mode] if args.key?(:packet_mode)
          @session_initialization_mode = args[:session_initialization_mode] if args.key?(:session_initialization_mode)
          @slow_timer_interval = args[:slow_timer_interval] if args.key?(:slow_timer_interval)
        end
      end
      
      # 
      class RouterInterface
        include Google::Apis::Core::Hashable
      
        # IP address and range of the interface. The IP range must be in the RFC3927
        # link-local IP address space. The value must be a CIDR-formatted string, for
        # example: 169.254.0.1/30. NOTE: Do not truncate the address as it represents
        # the IP address of the interface.
        # Corresponds to the JSON property `ipRange`
        # @return [String]
        attr_accessor :ip_range
      
        # URI of the linked Interconnect attachment. It must be in the same region as
        # the router. Each interface can have one linked resource, which can be a VPN
        # tunnel, an Interconnect attachment, or a virtual machine instance.
        # Corresponds to the JSON property `linkedInterconnectAttachment`
        # @return [String]
        attr_accessor :linked_interconnect_attachment
      
        # URI of the linked VPN tunnel, which must be in the same region as the router.
        # Each interface can have one linked resource, which can be a VPN tunnel, an
        # Interconnect attachment, or a virtual machine instance.
        # Corresponds to the JSON property `linkedVpnTunnel`
        # @return [String]
        attr_accessor :linked_vpn_tunnel
      
        # [Output Only] The resource that configures and manages this interface.
        # - MANAGED_BY_USER is the default value and can be managed directly by users.
        # - MANAGED_BY_ATTACHMENT is an interface that is configured and managed by
        # Cloud Interconnect, specifically, by an InterconnectAttachment of type PARTNER.
        # Google automatically creates, updates, and deletes this type of interface
        # when the PARTNER InterconnectAttachment is created, updated, or deleted.
        # Corresponds to the JSON property `managementType`
        # @return [String]
        attr_accessor :management_type
      
        # Name of this interface entry. The name must be 1-63 characters long, and
        # comply with RFC1035. Specifically, the name must be 1-63 characters long and
        # match the regular expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the
        # first character must be a lowercase letter, and all following characters must
        # be a dash, lowercase letter, or digit, except the last character, which cannot
        # be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # The regional private internal IP address that is used to establish BGP
        # sessions to a VM instance acting as a third-party Router Appliance, such as a
        # Next Gen Firewall, a Virtual Router, or an SD-WAN VM.
        # Corresponds to the JSON property `privateIpAddress`
        # @return [String]
        attr_accessor :private_ip_address
      
        # Name of the interface that will be redundant with the current interface you
        # are creating. The redundantInterface must belong to the same Cloud Router as
        # the interface here. To establish the BGP session to a Router Appliance VM, you
        # must create two BGP peers. The two BGP peers must be attached to two separate
        # interfaces that are redundant with each other. The redundant_interface must be
        # 1-63 characters long, and comply with RFC1035. Specifically, the
        # redundant_interface must be 1-63 characters long and match the regular
        # expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the first character must
        # be a lowercase letter, and all following characters must be a dash, lowercase
        # letter, or digit, except the last character, which cannot be a dash.
        # Corresponds to the JSON property `redundantInterface`
        # @return [String]
        attr_accessor :redundant_interface
      
        # The URL of the subnetwork resource that this interface belongs to, which must
        # be in the same region as the Cloud Router. When you establish a BGP session to
        # a VM instance using this interface, the VM instance must belong to the same
        # subnetwork as the subnetwork specified here.
        # Corresponds to the JSON property `subnetwork`
        # @return [String]
        attr_accessor :subnetwork
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @ip_range = args[:ip_range] if args.key?(:ip_range)
          @linked_interconnect_attachment = args[:linked_interconnect_attachment] if args.key?(:linked_interconnect_attachment)
          @linked_vpn_tunnel = args[:linked_vpn_tunnel] if args.key?(:linked_vpn_tunnel)
          @management_type = args[:management_type] if args.key?(:management_type)
          @name = args[:name] if args.key?(:name)
          @private_ip_address = args[:private_ip_address] if args.key?(:private_ip_address)
          @redundant_interface = args[:redundant_interface] if args.key?(:redundant_interface)
          @subnetwork = args[:subnetwork] if args.key?(:subnetwork)
        end
      end
      
      # Contains a list of Router resources.
      class RouterList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of Router resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::Router>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#router for routers.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::RouterList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::RouterList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Represents a Nat resource. It enables the VMs within the specified subnetworks
      # to access Internet without external IP addresses. It specifies a list of
      # subnetworks (and the ranges within) that want to use NAT. Customers can also
      # provide the external IPs that would be used for NAT. GCP would auto-allocate
      # ephemeral IPs if no external IPs are provided.
      class RouterNat
        include Google::Apis::Core::Hashable
      
        # A list of URLs of the IP resources to be drained. These IPs must be valid
        # static external IPs that have been assigned to the NAT. These IPs should be
        # used for updating/patching a NAT only.
        # Corresponds to the JSON property `drainNatIps`
        # @return [Array<String>]
        attr_accessor :drain_nat_ips
      
        # 
        # Corresponds to the JSON property `enableEndpointIndependentMapping`
        # @return [Boolean]
        attr_accessor :enable_endpoint_independent_mapping
        alias_method :enable_endpoint_independent_mapping?, :enable_endpoint_independent_mapping
      
        # Timeout (in seconds) for ICMP connections. Defaults to 30s if not set.
        # Corresponds to the JSON property `icmpIdleTimeoutSec`
        # @return [Fixnum]
        attr_accessor :icmp_idle_timeout_sec
      
        # Configuration of logging on a NAT.
        # Corresponds to the JSON property `logConfig`
        # @return [Google::Apis::ComputeAlpha::RouterNatLogConfig]
        attr_accessor :log_config
      
        # Minimum number of ports allocated to a VM from this NAT config. If not set, a
        # default number of ports is allocated to a VM. This is rounded up to the
        # nearest power of 2. For example, if the value of this field is 50, at least 64
        # ports are allocated to a VM.
        # Corresponds to the JSON property `minPortsPerVm`
        # @return [Fixnum]
        attr_accessor :min_ports_per_vm
      
        # Unique name of this Nat service. The name must be 1-63 characters long and
        # comply with RFC1035.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # Specify the NatIpAllocateOption, which can take one of the following values:
        # - MANUAL_ONLY: Uses only Nat IP addresses provided by customers. When there
        # are not enough specified Nat IPs, the Nat service fails for new VMs.
        # - AUTO_ONLY: Nat IPs are allocated by Google Cloud Platform; customers can't
        # specify any Nat IPs. When choosing AUTO_ONLY, then nat_ip should be empty.
        # Corresponds to the JSON property `natIpAllocateOption`
        # @return [String]
        attr_accessor :nat_ip_allocate_option
      
        # A list of URLs of the IP resources used for this Nat service. These IP
        # addresses must be valid static external IP addresses assigned to the project.
        # Corresponds to the JSON property `natIps`
        # @return [Array<String>]
        attr_accessor :nat_ips
      
        # A list of rules associated with this NAT.
        # Corresponds to the JSON property `rules`
        # @return [Array<Google::Apis::ComputeAlpha::RouterNatRule>]
        attr_accessor :rules
      
        # Specify the Nat option, which can take one of the following values:
        # - ALL_SUBNETWORKS_ALL_IP_RANGES: All of the IP ranges in every Subnetwork are
        # allowed to Nat.
        # - ALL_SUBNETWORKS_ALL_PRIMARY_IP_RANGES: All of the primary IP ranges in every
        # Subnetwork are allowed to Nat.
        # - LIST_OF_SUBNETWORKS: A list of Subnetworks are allowed to Nat (specified in
        # the field subnetwork below) The default is
        # SUBNETWORK_IP_RANGE_TO_NAT_OPTION_UNSPECIFIED. Note that if this field
        # contains ALL_SUBNETWORKS_ALL_IP_RANGES or
        # ALL_SUBNETWORKS_ALL_PRIMARY_IP_RANGES, then there should not be any other
        # Router.Nat section in any Router for this network in this region.
        # Corresponds to the JSON property `sourceSubnetworkIpRangesToNat`
        # @return [String]
        attr_accessor :source_subnetwork_ip_ranges_to_nat
      
        # A list of Subnetwork resources whose traffic should be translated by NAT
        # Gateway. It is used only when LIST_OF_SUBNETWORKS is selected for the
        # SubnetworkIpRangeToNatOption above.
        # Corresponds to the JSON property `subnetworks`
        # @return [Array<Google::Apis::ComputeAlpha::RouterNatSubnetworkToNat>]
        attr_accessor :subnetworks
      
        # Timeout (in seconds) for TCP established connections. Defaults to 1200s if not
        # set.
        # Corresponds to the JSON property `tcpEstablishedIdleTimeoutSec`
        # @return [Fixnum]
        attr_accessor :tcp_established_idle_timeout_sec
      
        # Timeout (in seconds) for TCP connections that are in TIME_WAIT state. Defaults
        # to 120s if not set.
        # Corresponds to the JSON property `tcpTimeWaitTimeoutSec`
        # @return [Fixnum]
        attr_accessor :tcp_time_wait_timeout_sec
      
        # Timeout (in seconds) for TCP transitory connections. Defaults to 30s if not
        # set.
        # Corresponds to the JSON property `tcpTransitoryIdleTimeoutSec`
        # @return [Fixnum]
        attr_accessor :tcp_transitory_idle_timeout_sec
      
        # Timeout (in seconds) for UDP connections. Defaults to 30s if not set.
        # Corresponds to the JSON property `udpIdleTimeoutSec`
        # @return [Fixnum]
        attr_accessor :udp_idle_timeout_sec
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @drain_nat_ips = args[:drain_nat_ips] if args.key?(:drain_nat_ips)
          @enable_endpoint_independent_mapping = args[:enable_endpoint_independent_mapping] if args.key?(:enable_endpoint_independent_mapping)
          @icmp_idle_timeout_sec = args[:icmp_idle_timeout_sec] if args.key?(:icmp_idle_timeout_sec)
          @log_config = args[:log_config] if args.key?(:log_config)
          @min_ports_per_vm = args[:min_ports_per_vm] if args.key?(:min_ports_per_vm)
          @name = args[:name] if args.key?(:name)
          @nat_ip_allocate_option = args[:nat_ip_allocate_option] if args.key?(:nat_ip_allocate_option)
          @nat_ips = args[:nat_ips] if args.key?(:nat_ips)
          @rules = args[:rules] if args.key?(:rules)
          @source_subnetwork_ip_ranges_to_nat = args[:source_subnetwork_ip_ranges_to_nat] if args.key?(:source_subnetwork_ip_ranges_to_nat)
          @subnetworks = args[:subnetworks] if args.key?(:subnetworks)
          @tcp_established_idle_timeout_sec = args[:tcp_established_idle_timeout_sec] if args.key?(:tcp_established_idle_timeout_sec)
          @tcp_time_wait_timeout_sec = args[:tcp_time_wait_timeout_sec] if args.key?(:tcp_time_wait_timeout_sec)
          @tcp_transitory_idle_timeout_sec = args[:tcp_transitory_idle_timeout_sec] if args.key?(:tcp_transitory_idle_timeout_sec)
          @udp_idle_timeout_sec = args[:udp_idle_timeout_sec] if args.key?(:udp_idle_timeout_sec)
        end
      end
      
      # Configuration of logging on a NAT.
      class RouterNatLogConfig
        include Google::Apis::Core::Hashable
      
        # Indicates whether or not to export logs. This is false by default.
        # Corresponds to the JSON property `enable`
        # @return [Boolean]
        attr_accessor :enable
        alias_method :enable?, :enable
      
        # Specify the desired filtering of logs on this NAT. If unspecified, logs are
        # exported for all connections handled by this NAT. This option can take one of
        # the following values:
        # - ERRORS_ONLY: Export logs only for connection failures.
        # - TRANSLATIONS_ONLY: Export logs only for successful connections.
        # - ALL: Export logs for all connections, successful and unsuccessful.
        # Corresponds to the JSON property `filter`
        # @return [String]
        attr_accessor :filter
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @enable = args[:enable] if args.key?(:enable)
          @filter = args[:filter] if args.key?(:filter)
        end
      end
      
      # 
      class RouterNatRule
        include Google::Apis::Core::Hashable
      
        # The action to be enforced for traffic that matches this rule.
        # Corresponds to the JSON property `action`
        # @return [Google::Apis::ComputeAlpha::RouterNatRuleAction]
        attr_accessor :action
      
        # An optional description of this rule.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # CEL expression that specifies the match condition that egress traffic from a
        # VM is evaluated against. If it evaluates to true, the corresponding ?action?
        # is enforced.
        # The following examples are valid match expressions:
        # "inIpRange(destination.ip, '1.1.0.0/16') || inIpRange(destination.ip, '2.2.0.0/
        # 16')"
        # "destination.ip == '1.1.0.1' || destination.ip == '8.8.8.8'"
        # Corresponds to the JSON property `match`
        # @return [String]
        attr_accessor :match
      
        # An integer uniquely identifying a rule in the list. The rule number must be a
        # positive value between 0 and 65000, and must be unique among rules within a
        # NAT.
        # Corresponds to the JSON property `ruleNumber`
        # @return [Fixnum]
        attr_accessor :rule_number
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @action = args[:action] if args.key?(:action)
          @description = args[:description] if args.key?(:description)
          @match = args[:match] if args.key?(:match)
          @rule_number = args[:rule_number] if args.key?(:rule_number)
        end
      end
      
      # 
      class RouterNatRuleAction
        include Google::Apis::Core::Hashable
      
        # A list of URLs of the IP resources used for this NAT rule. These IP addresses
        # must be valid static external IP addresses assigned to the project.
        # Corresponds to the JSON property `sourceNatActiveIps`
        # @return [Array<String>]
        attr_accessor :source_nat_active_ips
      
        # A list of URLs of the IP resources to be drained. These IPs must be valid
        # static external IPs that have been assigned to the NAT. These IPs should be
        # used for updating/patching a NAT rule only.
        # Corresponds to the JSON property `sourceNatDrainIps`
        # @return [Array<String>]
        attr_accessor :source_nat_drain_ips
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @source_nat_active_ips = args[:source_nat_active_ips] if args.key?(:source_nat_active_ips)
          @source_nat_drain_ips = args[:source_nat_drain_ips] if args.key?(:source_nat_drain_ips)
        end
      end
      
      # Defines the IP ranges that want to use NAT for a subnetwork.
      class RouterNatSubnetworkToNat
        include Google::Apis::Core::Hashable
      
        # URL for the subnetwork resource that will use NAT.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # A list of the secondary ranges of the Subnetwork that are allowed to use NAT.
        # This can be populated only if "LIST_OF_SECONDARY_IP_RANGES" is one of the
        # values in source_ip_ranges_to_nat.
        # Corresponds to the JSON property `secondaryIpRangeNames`
        # @return [Array<String>]
        attr_accessor :secondary_ip_range_names
      
        # Specify the options for NAT ranges in the Subnetwork. All options of a single
        # value are valid except NAT_IP_RANGE_OPTION_UNSPECIFIED. The only valid option
        # with multiple values is: ["PRIMARY_IP_RANGE", "LIST_OF_SECONDARY_IP_RANGES"]
        # Default: [ALL_IP_RANGES]
        # Corresponds to the JSON property `sourceIpRangesToNat`
        # @return [Array<String>]
        attr_accessor :source_ip_ranges_to_nat
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @name = args[:name] if args.key?(:name)
          @secondary_ip_range_names = args[:secondary_ip_range_names] if args.key?(:secondary_ip_range_names)
          @source_ip_ranges_to_nat = args[:source_ip_ranges_to_nat] if args.key?(:source_ip_ranges_to_nat)
        end
      end
      
      # 
      class RouterStatus
        include Google::Apis::Core::Hashable
      
        # Best routes for this router's network.
        # Corresponds to the JSON property `bestRoutes`
        # @return [Array<Google::Apis::ComputeAlpha::Route>]
        attr_accessor :best_routes
      
        # Best routes learned by this router.
        # Corresponds to the JSON property `bestRoutesForRouter`
        # @return [Array<Google::Apis::ComputeAlpha::Route>]
        attr_accessor :best_routes_for_router
      
        # 
        # Corresponds to the JSON property `bgpPeerStatus`
        # @return [Array<Google::Apis::ComputeAlpha::RouterStatusBgpPeerStatus>]
        attr_accessor :bgp_peer_status
      
        # 
        # Corresponds to the JSON property `natStatus`
        # @return [Array<Google::Apis::ComputeAlpha::RouterStatusNatStatus>]
        attr_accessor :nat_status
      
        # URI of the network to which this router belongs.
        # Corresponds to the JSON property `network`
        # @return [String]
        attr_accessor :network
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @best_routes = args[:best_routes] if args.key?(:best_routes)
          @best_routes_for_router = args[:best_routes_for_router] if args.key?(:best_routes_for_router)
          @bgp_peer_status = args[:bgp_peer_status] if args.key?(:bgp_peer_status)
          @nat_status = args[:nat_status] if args.key?(:nat_status)
          @network = args[:network] if args.key?(:network)
        end
      end
      
      # 
      class RouterStatusBgpPeerStatus
        include Google::Apis::Core::Hashable
      
        # Routes that were advertised to the remote BGP peer
        # Corresponds to the JSON property `advertisedRoutes`
        # @return [Array<Google::Apis::ComputeAlpha::Route>]
        attr_accessor :advertised_routes
      
        # Next free: 15
        # Corresponds to the JSON property `bfdStatus`
        # @return [Google::Apis::ComputeAlpha::BfdStatus]
        attr_accessor :bfd_status
      
        # IP address of the local BGP interface.
        # Corresponds to the JSON property `ipAddress`
        # @return [String]
        attr_accessor :ip_address
      
        # URL of the VPN tunnel that this BGP peer controls.
        # Corresponds to the JSON property `linkedVpnTunnel`
        # @return [String]
        attr_accessor :linked_vpn_tunnel
      
        # Name of this BGP peer. Unique within the Routers resource.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # Number of routes learned from the remote BGP Peer.
        # Corresponds to the JSON property `numLearnedRoutes`
        # @return [Fixnum]
        attr_accessor :num_learned_routes
      
        # IP address of the remote BGP interface.
        # Corresponds to the JSON property `peerIpAddress`
        # @return [String]
        attr_accessor :peer_ip_address
      
        # BGP state as specified in RFC1771.
        # Corresponds to the JSON property `state`
        # @return [String]
        attr_accessor :state
      
        # Status of the BGP peer: `UP, DOWN`
        # Corresponds to the JSON property `status`
        # @return [String]
        attr_accessor :status
      
        # Time this session has been up. Format: 14 years, 51 weeks, 6 days, 23 hours,
        # 59 minutes, 59 seconds
        # Corresponds to the JSON property `uptime`
        # @return [String]
        attr_accessor :uptime
      
        # Time this session has been up, in seconds. Format: 145
        # Corresponds to the JSON property `uptimeSeconds`
        # @return [String]
        attr_accessor :uptime_seconds
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @advertised_routes = args[:advertised_routes] if args.key?(:advertised_routes)
          @bfd_status = args[:bfd_status] if args.key?(:bfd_status)
          @ip_address = args[:ip_address] if args.key?(:ip_address)
          @linked_vpn_tunnel = args[:linked_vpn_tunnel] if args.key?(:linked_vpn_tunnel)
          @name = args[:name] if args.key?(:name)
          @num_learned_routes = args[:num_learned_routes] if args.key?(:num_learned_routes)
          @peer_ip_address = args[:peer_ip_address] if args.key?(:peer_ip_address)
          @state = args[:state] if args.key?(:state)
          @status = args[:status] if args.key?(:status)
          @uptime = args[:uptime] if args.key?(:uptime)
          @uptime_seconds = args[:uptime_seconds] if args.key?(:uptime_seconds)
        end
      end
      
      # Status of a NAT contained in this router.
      class RouterStatusNatStatus
        include Google::Apis::Core::Hashable
      
        # A list of IPs auto-allocated for NAT. Example: ["1.1.1.1", "129.2.16.89"]
        # Corresponds to the JSON property `autoAllocatedNatIps`
        # @return [Array<String>]
        attr_accessor :auto_allocated_nat_ips
      
        # A list of IPs auto-allocated for NAT that are in drain mode. Example: ["1.1.1.
        # 1", "179.12.26.133"].
        # Corresponds to the JSON property `drainAutoAllocatedNatIps`
        # @return [Array<String>]
        attr_accessor :drain_auto_allocated_nat_ips
      
        # A list of IPs user-allocated for NAT that are in drain mode. Example: ["1.1.1.
        # 1", "179.12.26.133"].
        # Corresponds to the JSON property `drainUserAllocatedNatIps`
        # @return [Array<String>]
        attr_accessor :drain_user_allocated_nat_ips
      
        # The number of extra IPs to allocate. This will be greater than 0 only if user-
        # specified IPs are NOT enough to allow all configured VMs to use NAT. This
        # value is meaningful only when auto-allocation of NAT IPs is *not* used.
        # Corresponds to the JSON property `minExtraNatIpsNeeded`
        # @return [Fixnum]
        attr_accessor :min_extra_nat_ips_needed
      
        # Unique name of this NAT.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # Number of VM endpoints (i.e., Nics) that can use NAT.
        # Corresponds to the JSON property `numVmEndpointsWithNatMappings`
        # @return [Fixnum]
        attr_accessor :num_vm_endpoints_with_nat_mappings
      
        # Status of rules in this NAT.
        # Corresponds to the JSON property `ruleStatus`
        # @return [Array<Google::Apis::ComputeAlpha::RouterStatusNatStatusNatRuleStatus>]
        attr_accessor :rule_status
      
        # A list of fully qualified URLs of reserved IP address resources.
        # Corresponds to the JSON property `userAllocatedNatIpResources`
        # @return [Array<String>]
        attr_accessor :user_allocated_nat_ip_resources
      
        # A list of IPs user-allocated for NAT. They will be raw IP strings like "179.12.
        # 26.133".
        # Corresponds to the JSON property `userAllocatedNatIps`
        # @return [Array<String>]
        attr_accessor :user_allocated_nat_ips
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @auto_allocated_nat_ips = args[:auto_allocated_nat_ips] if args.key?(:auto_allocated_nat_ips)
          @drain_auto_allocated_nat_ips = args[:drain_auto_allocated_nat_ips] if args.key?(:drain_auto_allocated_nat_ips)
          @drain_user_allocated_nat_ips = args[:drain_user_allocated_nat_ips] if args.key?(:drain_user_allocated_nat_ips)
          @min_extra_nat_ips_needed = args[:min_extra_nat_ips_needed] if args.key?(:min_extra_nat_ips_needed)
          @name = args[:name] if args.key?(:name)
          @num_vm_endpoints_with_nat_mappings = args[:num_vm_endpoints_with_nat_mappings] if args.key?(:num_vm_endpoints_with_nat_mappings)
          @rule_status = args[:rule_status] if args.key?(:rule_status)
          @user_allocated_nat_ip_resources = args[:user_allocated_nat_ip_resources] if args.key?(:user_allocated_nat_ip_resources)
          @user_allocated_nat_ips = args[:user_allocated_nat_ips] if args.key?(:user_allocated_nat_ips)
        end
      end
      
      # Status of a NAT Rule contained in this NAT.
      class RouterStatusNatStatusNatRuleStatus
        include Google::Apis::Core::Hashable
      
        # A list of active IPs for NAT. Example: ["1.1.1.1", "179.12.26.133"].
        # Corresponds to the JSON property `activeNatIps`
        # @return [Array<String>]
        attr_accessor :active_nat_ips
      
        # A list of IPs for NAT that are in drain mode. Example: ["1.1.1.1", "179.12.26.
        # 133"].
        # Corresponds to the JSON property `drainNatIps`
        # @return [Array<String>]
        attr_accessor :drain_nat_ips
      
        # The number of extra IPs to allocate. This will be greater than 0 only if the
        # existing IPs in this NAT Rule are NOT enough to allow all configured VMs to
        # use NAT.
        # Corresponds to the JSON property `minExtraIpsNeeded`
        # @return [Fixnum]
        attr_accessor :min_extra_ips_needed
      
        # Number of VM endpoints (i.e., NICs) that have NAT Mappings from this NAT Rule.
        # Corresponds to the JSON property `numVmEndpointsWithNatMappings`
        # @return [Fixnum]
        attr_accessor :num_vm_endpoints_with_nat_mappings
      
        # Rule number of the rule.
        # Corresponds to the JSON property `ruleNumber`
        # @return [Fixnum]
        attr_accessor :rule_number
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @active_nat_ips = args[:active_nat_ips] if args.key?(:active_nat_ips)
          @drain_nat_ips = args[:drain_nat_ips] if args.key?(:drain_nat_ips)
          @min_extra_ips_needed = args[:min_extra_ips_needed] if args.key?(:min_extra_ips_needed)
          @num_vm_endpoints_with_nat_mappings = args[:num_vm_endpoints_with_nat_mappings] if args.key?(:num_vm_endpoints_with_nat_mappings)
          @rule_number = args[:rule_number] if args.key?(:rule_number)
        end
      end
      
      # 
      class RouterStatusResponse
        include Google::Apis::Core::Hashable
      
        # Type of resource.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # 
        # Corresponds to the JSON property `result`
        # @return [Google::Apis::ComputeAlpha::RouterStatus]
        attr_accessor :result
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @kind = args[:kind] if args.key?(:kind)
          @result = args[:result] if args.key?(:result)
        end
      end
      
      # 
      class RoutersPreviewResponse
        include Google::Apis::Core::Hashable
      
        # Represents a Cloud Router resource.
        # For more information about Cloud Router, read the Cloud Router overview.
        # Corresponds to the JSON property `resource`
        # @return [Google::Apis::ComputeAlpha::Router]
        attr_accessor :resource
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @resource = args[:resource] if args.key?(:resource)
        end
      end
      
      # 
      class RoutersScopedList
        include Google::Apis::Core::Hashable
      
        # A list of routers contained in this scope.
        # Corresponds to the JSON property `routers`
        # @return [Array<Google::Apis::ComputeAlpha::Router>]
        attr_accessor :routers
      
        # Informational warning which replaces the list of routers when the list is
        # empty.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::RoutersScopedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @routers = args[:routers] if args.key?(:routers)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # Informational warning which replaces the list of routers when the list is
        # empty.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::RoutersScopedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # A rule to be applied in a Policy.
      class Rule
        include Google::Apis::Core::Hashable
      
        # Required
        # Corresponds to the JSON property `action`
        # @return [String]
        attr_accessor :action
      
        # Additional restrictions that must be met. All conditions must pass for the
        # rule to match.
        # Corresponds to the JSON property `conditions`
        # @return [Array<Google::Apis::ComputeAlpha::Condition>]
        attr_accessor :conditions
      
        # Human-readable description of the rule.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # If one or more 'in' clauses are specified, the rule matches if the PRINCIPAL/
        # AUTHORITY_SELECTOR is in at least one of these entries.
        # Corresponds to the JSON property `ins`
        # @return [Array<String>]
        attr_accessor :ins
      
        # The config returned to callers of tech.iam.IAM.CheckPolicy for any entries
        # that match the LOG action.
        # Corresponds to the JSON property `logConfigs`
        # @return [Array<Google::Apis::ComputeAlpha::LogConfig>]
        attr_accessor :log_configs
      
        # If one or more 'not_in' clauses are specified, the rule matches if the
        # PRINCIPAL/AUTHORITY_SELECTOR is in none of the entries.
        # Corresponds to the JSON property `notIns`
        # @return [Array<String>]
        attr_accessor :not_ins
      
        # A permission is a string of form '..' (e.g., 'storage.buckets.list'). A value
        # of '*' matches all permissions, and a verb part of '*' (e.g., 'storage.buckets.
        # *') matches all verbs.
        # Corresponds to the JSON property `permissions`
        # @return [Array<String>]
        attr_accessor :permissions
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @action = args[:action] if args.key?(:action)
          @conditions = args[:conditions] if args.key?(:conditions)
          @description = args[:description] if args.key?(:description)
          @ins = args[:ins] if args.key?(:ins)
          @log_configs = args[:log_configs] if args.key?(:log_configs)
          @not_ins = args[:not_ins] if args.key?(:not_ins)
          @permissions = args[:permissions] if args.key?(:permissions)
        end
      end
      
      # 
      class SslHealthCheck
        include Google::Apis::Core::Hashable
      
        # The TCP port number for the health check request. The default value is 443.
        # Valid values are 1 through 65535.
        # Corresponds to the JSON property `port`
        # @return [Fixnum]
        attr_accessor :port
      
        # Port name as defined in InstanceGroup#NamedPort#name. If both port and
        # port_name are defined, port takes precedence.
        # Corresponds to the JSON property `portName`
        # @return [String]
        attr_accessor :port_name
      
        # Specifies how port is selected for health checking, can be one of following
        # values:
        # USE_FIXED_PORT: The port number in port is used for health checking.
        # USE_NAMED_PORT: The portName is used for health checking.
        # USE_SERVING_PORT: For NetworkEndpointGroup, the port specified for each
        # network endpoint is used for health checking. For other backends, the port or
        # named port specified in the Backend Service is used for health checking.
        # If not specified, SSL health check follows behavior specified in port and
        # portName fields.
        # Corresponds to the JSON property `portSpecification`
        # @return [String]
        attr_accessor :port_specification
      
        # Specifies the type of proxy header to append before sending data to the
        # backend, either NONE or PROXY_V1. The default is NONE.
        # Corresponds to the JSON property `proxyHeader`
        # @return [String]
        attr_accessor :proxy_header
      
        # The application data to send once the SSL connection has been established (
        # default value is empty). If both request and response are empty, the
        # connection establishment alone will indicate health. The request data can only
        # be ASCII.
        # Corresponds to the JSON property `request`
        # @return [String]
        attr_accessor :request
      
        # The bytes to match against the beginning of the response data. If left empty (
        # the default value), any response will indicate health. The response data can
        # only be ASCII.
        # Corresponds to the JSON property `response`
        # @return [String]
        attr_accessor :response
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @port = args[:port] if args.key?(:port)
          @port_name = args[:port_name] if args.key?(:port_name)
          @port_specification = args[:port_specification] if args.key?(:port_specification)
          @proxy_header = args[:proxy_header] if args.key?(:proxy_header)
          @request = args[:request] if args.key?(:request)
          @response = args[:response] if args.key?(:response)
        end
      end
      
      # An instance-attached disk resource.
      class SavedAttachedDisk
        include Google::Apis::Core::Hashable
      
        # Specifies whether the disk will be auto-deleted when the instance is deleted (
        # but not when the disk is detached from the instance).
        # Corresponds to the JSON property `autoDelete`
        # @return [Boolean]
        attr_accessor :auto_delete
        alias_method :auto_delete?, :auto_delete
      
        # Indicates that this is a boot disk. The virtual machine will use the first
        # partition of the disk for its root filesystem.
        # Corresponds to the JSON property `boot`
        # @return [Boolean]
        attr_accessor :boot
        alias_method :boot?, :boot
      
        # Specifies the name of the disk attached to the source instance.
        # Corresponds to the JSON property `deviceName`
        # @return [String]
        attr_accessor :device_name
      
        # The encryption key for the disk.
        # Corresponds to the JSON property `diskEncryptionKey`
        # @return [Google::Apis::ComputeAlpha::CustomerEncryptionKey]
        attr_accessor :disk_encryption_key
      
        # The size of the disk in base-2 GB.
        # Corresponds to the JSON property `diskSizeGb`
        # @return [Fixnum]
        attr_accessor :disk_size_gb
      
        # [Output Only] URL of the disk type resource. For example: projects/project/
        # zones/zone/diskTypes/pd-standard or pd-ssd
        # Corresponds to the JSON property `diskType`
        # @return [String]
        attr_accessor :disk_type
      
        # A list of features to enable on the guest operating system. Applicable only
        # for bootable images. Read  Enabling guest operating system features to see a
        # list of available options.
        # Corresponds to the JSON property `guestOsFeatures`
        # @return [Array<Google::Apis::ComputeAlpha::GuestOsFeature>]
        attr_accessor :guest_os_features
      
        # Specifies zero-based index of the disk that is attached to the source instance.
        # Corresponds to the JSON property `index`
        # @return [Fixnum]
        attr_accessor :index
      
        # Specifies the disk interface to use for attaching this disk, which is either
        # SCSI or NVME.
        # Corresponds to the JSON property `interface`
        # @return [String]
        attr_accessor :interface
      
        # [Output Only] Type of the resource. Always compute#attachedDisk for attached
        # disks.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] Any valid publicly visible licenses.
        # Corresponds to the JSON property `licenses`
        # @return [Array<String>]
        attr_accessor :licenses
      
        # The mode in which this disk is attached to the source instance, either
        # READ_WRITE or READ_ONLY.
        # Corresponds to the JSON property `mode`
        # @return [String]
        attr_accessor :mode
      
        # Specifies a URL of the disk attached to the source instance.
        # Corresponds to the JSON property `source`
        # @return [String]
        attr_accessor :source
      
        # [Output Only] A size of the storage used by the disk's snapshot by this
        # machine image.
        # Corresponds to the JSON property `storageBytes`
        # @return [Fixnum]
        attr_accessor :storage_bytes
      
        # [Output Only] An indicator whether storageBytes is in a stable state or it is
        # being adjusted as a result of shared storage reallocation. This status can
        # either be UPDATING, meaning the size of the snapshot is being updated, or
        # UP_TO_DATE, meaning the size of the snapshot is up-to-date.
        # Corresponds to the JSON property `storageBytesStatus`
        # @return [String]
        attr_accessor :storage_bytes_status
      
        # Specifies the type of the attached disk, either SCRATCH or PERSISTENT.
        # Corresponds to the JSON property `type`
        # @return [String]
        attr_accessor :type
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @auto_delete = args[:auto_delete] if args.key?(:auto_delete)
          @boot = args[:boot] if args.key?(:boot)
          @device_name = args[:device_name] if args.key?(:device_name)
          @disk_encryption_key = args[:disk_encryption_key] if args.key?(:disk_encryption_key)
          @disk_size_gb = args[:disk_size_gb] if args.key?(:disk_size_gb)
          @disk_type = args[:disk_type] if args.key?(:disk_type)
          @guest_os_features = args[:guest_os_features] if args.key?(:guest_os_features)
          @index = args[:index] if args.key?(:index)
          @interface = args[:interface] if args.key?(:interface)
          @kind = args[:kind] if args.key?(:kind)
          @licenses = args[:licenses] if args.key?(:licenses)
          @mode = args[:mode] if args.key?(:mode)
          @source = args[:source] if args.key?(:source)
          @storage_bytes = args[:storage_bytes] if args.key?(:storage_bytes)
          @storage_bytes_status = args[:storage_bytes_status] if args.key?(:storage_bytes_status)
          @type = args[:type] if args.key?(:type)
        end
      end
      
      # 
      class ScalingScheduleStatus
        include Google::Apis::Core::Hashable
      
        # [Output Only] The last time the scaling schedule became active. Note: this is
        # a timestamp when a schedule actually became active, not when it was planned to
        # do so. The timestamp is in RFC3339 text format.
        # Corresponds to the JSON property `lastStartTime`
        # @return [String]
        attr_accessor :last_start_time
      
        # [Output Only] The next time the scaling schedule is to become active. Note:
        # this is a timestamp when a schedule is planned to run, but the actual time
        # might be slightly different. The timestamp is in RFC3339 text format.
        # Corresponds to the JSON property `nextStartTime`
        # @return [String]
        attr_accessor :next_start_time
      
        # [Output Only] The current state of a scaling schedule.
        # Corresponds to the JSON property `state`
        # @return [String]
        attr_accessor :state
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @last_start_time = args[:last_start_time] if args.key?(:last_start_time)
          @next_start_time = args[:next_start_time] if args.key?(:next_start_time)
          @state = args[:state] if args.key?(:state)
        end
      end
      
      # Sets the scheduling options for an Instance. NextID: 13
      class Scheduling
        include Google::Apis::Core::Hashable
      
        # Specifies whether the instance should be automatically restarted if it is
        # terminated by Compute Engine (not terminated by a user). You can only set the
        # automatic restart option for standard instances. Preemptible instances cannot
        # be automatically restarted.
        # By default, this is set to true so an instance is automatically restarted if
        # it is terminated by Compute Engine.
        # Corresponds to the JSON property `automaticRestart`
        # @return [Boolean]
        attr_accessor :automatic_restart
        alias_method :automatic_restart?, :automatic_restart
      
        # Defines whether the instance is tolerant of higher cpu latency. This can only
        # be set during instance creation, or when the instance is not currently running.
        # It must not be set if the preemptible option is also set.
        # Corresponds to the JSON property `latencyTolerant`
        # @return [Boolean]
        attr_accessor :latency_tolerant
        alias_method :latency_tolerant?, :latency_tolerant
      
        # An opaque location hint used to place the instance close to other resources.
        # This field is for use by internal tools that use the public API.
        # Corresponds to the JSON property `locationHint`
        # @return [String]
        attr_accessor :location_hint
      
        # Specifies the number of hours after instance creation where the instance won't
        # be scheduled for maintenance.
        # Corresponds to the JSON property `maintenanceFreezeDurationHours`
        # @return [Fixnum]
        attr_accessor :maintenance_freeze_duration_hours
      
        # Specifies whether this VM may be a stable fleet VM. Setting this to "Periodic"
        # designates this VM as a Stable Fleet VM.
        # See go/stable-fleet-ug for more details.
        # Corresponds to the JSON property `maintenanceInterval`
        # @return [String]
        attr_accessor :maintenance_interval
      
        # The minimum number of virtual CPUs this instance will consume when running on
        # a sole-tenant node.
        # Corresponds to the JSON property `minNodeCpus`
        # @return [Fixnum]
        attr_accessor :min_node_cpus
      
        # A set of node affinity and anti-affinity configurations. Refer to Configuring
        # node affinity for more information. Overrides reservationAffinity.
        # Corresponds to the JSON property `nodeAffinities`
        # @return [Array<Google::Apis::ComputeAlpha::SchedulingNodeAffinity>]
        attr_accessor :node_affinities
      
        # Defines the maintenance behavior for this instance. For standard instances,
        # the default behavior is MIGRATE. For preemptible instances, the default and
        # only possible behavior is TERMINATE. For more information, see Setting
        # Instance Scheduling Options.
        # Corresponds to the JSON property `onHostMaintenance`
        # @return [String]
        attr_accessor :on_host_maintenance
      
        # Defines whether the instance is preemptible. This can only be set during
        # instance creation or while the instance is stopped and therefore, in a `
        # TERMINATED` state. See Instance Life Cycle for more information on the
        # possible instance states.
        # Corresponds to the JSON property `preemptible`
        # @return [Boolean]
        attr_accessor :preemptible
        alias_method :preemptible?, :preemptible
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @automatic_restart = args[:automatic_restart] if args.key?(:automatic_restart)
          @latency_tolerant = args[:latency_tolerant] if args.key?(:latency_tolerant)
          @location_hint = args[:location_hint] if args.key?(:location_hint)
          @maintenance_freeze_duration_hours = args[:maintenance_freeze_duration_hours] if args.key?(:maintenance_freeze_duration_hours)
          @maintenance_interval = args[:maintenance_interval] if args.key?(:maintenance_interval)
          @min_node_cpus = args[:min_node_cpus] if args.key?(:min_node_cpus)
          @node_affinities = args[:node_affinities] if args.key?(:node_affinities)
          @on_host_maintenance = args[:on_host_maintenance] if args.key?(:on_host_maintenance)
          @preemptible = args[:preemptible] if args.key?(:preemptible)
        end
      end
      
      # Node Affinity: the configuration of desired nodes onto which this Instance
      # could be scheduled.
      class SchedulingNodeAffinity
        include Google::Apis::Core::Hashable
      
        # Corresponds to the label key of Node resource.
        # Corresponds to the JSON property `key`
        # @return [String]
        attr_accessor :key
      
        # Defines the operation of node selection. Valid operators are IN for affinity
        # and NOT_IN for anti-affinity.
        # Corresponds to the JSON property `operator`
        # @return [String]
        attr_accessor :operator
      
        # Corresponds to the label values of Node resource.
        # Corresponds to the JSON property `values`
        # @return [Array<String>]
        attr_accessor :values
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @key = args[:key] if args.key?(:key)
          @operator = args[:operator] if args.key?(:operator)
          @values = args[:values] if args.key?(:values)
        end
      end
      
      # An instance's screenshot.
      class Screenshot
        include Google::Apis::Core::Hashable
      
        # [Output Only] The Base64-encoded screenshot data.
        # Corresponds to the JSON property `contents`
        # @return [String]
        attr_accessor :contents
      
        # [Output Only] Type of the resource. Always compute#screenshot for the
        # screenshots.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @contents = args[:contents] if args.key?(:contents)
          @kind = args[:kind] if args.key?(:kind)
        end
      end
      
      # [Deprecated] The configuration to access the SDS server. The configuration to
      # access the SDS server.
      class SdsConfig
        include Google::Apis::Core::Hashable
      
        # [Deprecated] gRPC config to access the SDS server. gRPC config to access the
        # SDS server.
        # Corresponds to the JSON property `grpcServiceConfig`
        # @return [Google::Apis::ComputeAlpha::GrpcServiceConfig]
        attr_accessor :grpc_service_config
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @grpc_service_config = args[:grpc_service_config] if args.key?(:grpc_service_config)
        end
      end
      
      # 
      class SecurityPoliciesListPreconfiguredExpressionSetsResponse
        include Google::Apis::Core::Hashable
      
        # 
        # Corresponds to the JSON property `preconfiguredExpressionSets`
        # @return [Google::Apis::ComputeAlpha::SecurityPoliciesWafConfig]
        attr_accessor :preconfigured_expression_sets
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @preconfigured_expression_sets = args[:preconfigured_expression_sets] if args.key?(:preconfigured_expression_sets)
        end
      end
      
      # 
      class SecurityPoliciesWafConfig
        include Google::Apis::Core::Hashable
      
        # 
        # Corresponds to the JSON property `wafRules`
        # @return [Google::Apis::ComputeAlpha::PreconfiguredWafSet]
        attr_accessor :waf_rules
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @waf_rules = args[:waf_rules] if args.key?(:waf_rules)
        end
      end
      
      # Represents a Google Cloud Armor security policy resource.
      # Only external backend services that use load balancers can reference a
      # security policy. For more information, see  Google Cloud Armor security policy
      # overview. (== resource_for `$api_version`.securityPolicies ==)
      class SecurityPolicy
        include Google::Apis::Core::Hashable
      
        # Configuration options for Cloud Armor Adaptive Protection (CAAP).
        # Corresponds to the JSON property `adaptiveProtectionConfig`
        # @return [Google::Apis::ComputeAlpha::SecurityPolicyAdaptiveProtectionConfig]
        attr_accessor :adaptive_protection_config
      
        # A list of associations that belong to this policy.
        # Corresponds to the JSON property `associations`
        # @return [Array<Google::Apis::ComputeAlpha::SecurityPolicyAssociation>]
        attr_accessor :associations
      
        # Configuration options for Cloud Armor.
        # Corresponds to the JSON property `cloudArmorConfig`
        # @return [Google::Apis::ComputeAlpha::SecurityPolicyCloudArmorConfig]
        attr_accessor :cloud_armor_config
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # User-provided name of the Organization security plicy. The name should be
        # unique in the organization in which the security policy is created. This
        # should only be used when SecurityPolicyType is FIREWALL. The name must be 1-63
        # characters long, and comply with https://www.ietf.org/rfc/rfc1035.txt.
        # Specifically, the name must be 1-63 characters long and match the regular
        # expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the first character must
        # be a lowercase letter, and all following characters must be a dash, lowercase
        # letter, or digit, except the last character, which cannot be a dash.
        # Corresponds to the JSON property `displayName`
        # @return [String]
        attr_accessor :display_name
      
        # Specifies a fingerprint for this resource, which is essentially a hash of the
        # metadata's contents and used for optimistic locking. The fingerprint is
        # initially generated by Compute Engine and changes after every request to
        # modify or update metadata. You must always provide an up-to-date fingerprint
        # hash in order to update or change metadata, otherwise the request will fail
        # with error 412 conditionNotMet.
        # To see the latest fingerprint, make get() request to the security policy.
        # Corresponds to the JSON property `fingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :fingerprint
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output only] Type of the resource. Always compute#securityPolicyfor security
        # policies
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # A fingerprint for the labels being applied to this security policy, which is
        # essentially a hash of the labels set used for optimistic locking. The
        # fingerprint is initially generated by Compute Engine and changes after every
        # request to modify or update labels. You must always provide an up-to-date
        # fingerprint hash in order to update or change labels.
        # To see the latest fingerprint, make get() request to the security policy.
        # Corresponds to the JSON property `labelFingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :label_fingerprint
      
        # Labels for this resource. These can only be added or modified by the setLabels
        # method. Each label key/value pair must comply with RFC1035. Label values may
        # be empty.
        # Corresponds to the JSON property `labels`
        # @return [Hash<String,String>]
        attr_accessor :labels
      
        # Name of the resource. Provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # [Output Only] The parent of the security policy.
        # Corresponds to the JSON property `parent`
        # @return [String]
        attr_accessor :parent
      
        # [Output Only] Total count of all security policy rule tuples. A security
        # policy can not exceed a set number of tuples.
        # Corresponds to the JSON property `ruleTupleCount`
        # @return [Fixnum]
        attr_accessor :rule_tuple_count
      
        # A list of rules that belong to this policy. There must always be a default
        # rule (rule with priority 2147483647 and match "*"). If no rules are provided
        # when creating a security policy, a default rule with action "allow" will be
        # added.
        # Corresponds to the JSON property `rules`
        # @return [Array<Google::Apis::ComputeAlpha::SecurityPolicyRule>]
        attr_accessor :rules
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # The type indicates the intended use of the security policy. CLOUD_ARMOR
        # policies apply to backend services. FIREWALL policies apply to organizations.
        # Corresponds to the JSON property `type`
        # @return [String]
        attr_accessor :type
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @adaptive_protection_config = args[:adaptive_protection_config] if args.key?(:adaptive_protection_config)
          @associations = args[:associations] if args.key?(:associations)
          @cloud_armor_config = args[:cloud_armor_config] if args.key?(:cloud_armor_config)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @display_name = args[:display_name] if args.key?(:display_name)
          @fingerprint = args[:fingerprint] if args.key?(:fingerprint)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @label_fingerprint = args[:label_fingerprint] if args.key?(:label_fingerprint)
          @labels = args[:labels] if args.key?(:labels)
          @name = args[:name] if args.key?(:name)
          @parent = args[:parent] if args.key?(:parent)
          @rule_tuple_count = args[:rule_tuple_count] if args.key?(:rule_tuple_count)
          @rules = args[:rules] if args.key?(:rules)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @type = args[:type] if args.key?(:type)
        end
      end
      
      # Configuration options for Cloud Armor Adaptive Protection (CAAP).
      class SecurityPolicyAdaptiveProtectionConfig
        include Google::Apis::Core::Hashable
      
        # Configuration options for L7 DDoS detection.
        # Corresponds to the JSON property `layer7DdosDefenseConfig`
        # @return [Google::Apis::ComputeAlpha::SecurityPolicyAdaptiveProtectionConfigLayer7DdosDefenseConfig]
        attr_accessor :layer7_ddos_defense_config
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @layer7_ddos_defense_config = args[:layer7_ddos_defense_config] if args.key?(:layer7_ddos_defense_config)
        end
      end
      
      # Configuration options for L7 DDoS detection.
      class SecurityPolicyAdaptiveProtectionConfigLayer7DdosDefenseConfig
        include Google::Apis::Core::Hashable
      
        # If set to true, enables CAAP for L7 DDoS detection.
        # Corresponds to the JSON property `enable`
        # @return [Boolean]
        attr_accessor :enable
        alias_method :enable?, :enable
      
        # Rule visibility can be one of the following: STANDARD - opaque rules. (default)
        # PREMIUM - transparent rules.
        # Corresponds to the JSON property `ruleVisibility`
        # @return [String]
        attr_accessor :rule_visibility
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @enable = args[:enable] if args.key?(:enable)
          @rule_visibility = args[:rule_visibility] if args.key?(:rule_visibility)
        end
      end
      
      # 
      class SecurityPolicyAssociation
        include Google::Apis::Core::Hashable
      
        # The resource that the security policy is attached to.
        # Corresponds to the JSON property `attachmentId`
        # @return [String]
        attr_accessor :attachment_id
      
        # [Output Only] The display name of the security policy of the association.
        # Corresponds to the JSON property `displayName`
        # @return [String]
        attr_accessor :display_name
      
        # The name for an association.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # [Output Only] The security policy ID of the association.
        # Corresponds to the JSON property `securityPolicyId`
        # @return [String]
        attr_accessor :security_policy_id
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @attachment_id = args[:attachment_id] if args.key?(:attachment_id)
          @display_name = args[:display_name] if args.key?(:display_name)
          @name = args[:name] if args.key?(:name)
          @security_policy_id = args[:security_policy_id] if args.key?(:security_policy_id)
        end
      end
      
      # Configuration options for Cloud Armor.
      class SecurityPolicyCloudArmorConfig
        include Google::Apis::Core::Hashable
      
        # If set to true, enables Cloud Armor Machine Learning.
        # Corresponds to the JSON property `enableMl`
        # @return [Boolean]
        attr_accessor :enable_ml
        alias_method :enable_ml?, :enable_ml
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @enable_ml = args[:enable_ml] if args.key?(:enable_ml)
        end
      end
      
      # 
      class SecurityPolicyList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of SecurityPolicy resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::SecurityPolicy>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#securityPolicyList for listsof
        # securityPolicies
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::SecurityPolicyList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::SecurityPolicyList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class SecurityPolicyReference
        include Google::Apis::Core::Hashable
      
        # 
        # Corresponds to the JSON property `securityPolicy`
        # @return [String]
        attr_accessor :security_policy
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @security_policy = args[:security_policy] if args.key?(:security_policy)
        end
      end
      
      # Represents a rule that describes one or more match conditions along with the
      # action to be taken when traffic matches this condition (allow or deny).
      class SecurityPolicyRule
        include Google::Apis::Core::Hashable
      
        # The Action to preform when the client connection triggers the rule. Can
        # currently be either "allow" or "deny()" where valid values for status are 403,
        # 404, and 502.
        # Corresponds to the JSON property `action`
        # @return [String]
        attr_accessor :action
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # The direction in which this rule applies. This field may only be specified
        # when versioned_expr is set to FIREWALL.
        # Corresponds to the JSON property `direction`
        # @return [String]
        attr_accessor :direction
      
        # Denotes whether to enable logging for a particular rule. If logging is enabled,
        # logs will be exported to the configured export destination in Stackdriver.
        # Logs may be exported to BigQuery or Pub/Sub. Note: you cannot enable logging
        # on "goto_next" rules.
        # This field may only be specified when the versioned_expr is set to FIREWALL.
        # Corresponds to the JSON property `enableLogging`
        # @return [Boolean]
        attr_accessor :enable_logging
        alias_method :enable_logging?, :enable_logging
      
        # [Output only] Type of the resource. Always compute#securityPolicyRule for
        # security policy rules
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # Represents a match condition that incoming traffic is evaluated against.
        # Exactly one field must be specified.
        # Corresponds to the JSON property `match`
        # @return [Google::Apis::ComputeAlpha::SecurityPolicyRuleMatcher]
        attr_accessor :match
      
        # If set to true, the specified action is not enforced.
        # Corresponds to the JSON property `preview`
        # @return [Boolean]
        attr_accessor :preview
        alias_method :preview?, :preview
      
        # An integer indicating the priority of a rule in the list. The priority must be
        # a positive value between 0 and 2147483647. Rules are evaluated from highest to
        # lowest priority where 0 is the highest priority and 2147483647 is the lowest
        # priority.
        # Corresponds to the JSON property `priority`
        # @return [Fixnum]
        attr_accessor :priority
      
        # Must be specified if the action is "rate_based_blacklist" or "throttle".
        # Cannot be specified for any other actions.
        # Corresponds to the JSON property `rateLimitOptions`
        # @return [Google::Apis::ComputeAlpha::SecurityPolicyRuleRateLimitOptions]
        attr_accessor :rate_limit_options
      
        # Identifier for the rule. This is only unique within the given security policy.
        # This can only be set during rule creation, if rule number is not specified it
        # will be generated by the server.
        # Corresponds to the JSON property `ruleNumber`
        # @return [Fixnum]
        attr_accessor :rule_number
      
        # [Output Only] Calculation of the complexity of a single firewall security
        # policy rule.
        # Corresponds to the JSON property `ruleTupleCount`
        # @return [Fixnum]
        attr_accessor :rule_tuple_count
      
        # A list of network resource URLs to which this rule applies. This field allows
        # you to control which network's VMs get this rule. If this field is left blank,
        # all VMs within the organization will receive the rule.
        # This field may only be specified when versioned_expr is set to FIREWALL.
        # Corresponds to the JSON property `targetResources`
        # @return [Array<String>]
        attr_accessor :target_resources
      
        # A list of service accounts indicating the sets of instances that are applied
        # with this rule.
        # Corresponds to the JSON property `targetServiceAccounts`
        # @return [Array<String>]
        attr_accessor :target_service_accounts
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @action = args[:action] if args.key?(:action)
          @description = args[:description] if args.key?(:description)
          @direction = args[:direction] if args.key?(:direction)
          @enable_logging = args[:enable_logging] if args.key?(:enable_logging)
          @kind = args[:kind] if args.key?(:kind)
          @match = args[:match] if args.key?(:match)
          @preview = args[:preview] if args.key?(:preview)
          @priority = args[:priority] if args.key?(:priority)
          @rate_limit_options = args[:rate_limit_options] if args.key?(:rate_limit_options)
          @rule_number = args[:rule_number] if args.key?(:rule_number)
          @rule_tuple_count = args[:rule_tuple_count] if args.key?(:rule_tuple_count)
          @target_resources = args[:target_resources] if args.key?(:target_resources)
          @target_service_accounts = args[:target_service_accounts] if args.key?(:target_service_accounts)
        end
      end
      
      # Represents a match condition that incoming traffic is evaluated against.
      # Exactly one field must be specified.
      class SecurityPolicyRuleMatcher
        include Google::Apis::Core::Hashable
      
        # The configuration options available when specifying versioned_expr. This field
        # must be specified if versioned_expr is specified and cannot be specified if
        # versioned_expr is not specified.
        # Corresponds to the JSON property `config`
        # @return [Google::Apis::ComputeAlpha::SecurityPolicyRuleMatcherConfig]
        attr_accessor :config
      
        # Represents a textual expression in the Common Expression Language (CEL) syntax.
        # CEL is a C-like expression language. The syntax and semantics of CEL are
        # documented at https://github.com/google/cel-spec.
        # Example (Comparison):
        # title: "Summary size limit" description: "Determines if a summary is less than
        # 100 chars" expression: "document.summary.size() < 100"
        # Example (Equality):
        # title: "Requestor is owner" description: "Determines if requestor is the
        # document owner" expression: "document.owner == request.auth.claims.email"
        # Example (Logic):
        # title: "Public documents" description: "Determine whether the document should
        # be publicly visible" expression: "document.type != 'private' && document.type !
        # = 'internal'"
        # Example (Data Manipulation):
        # title: "Notification string" description: "Create a notification string with a
        # timestamp." expression: "'New message received at ' + string(document.
        # create_time)"
        # The exact variables and functions that may be referenced within an expression
        # are determined by the service that evaluates it. See the service documentation
        # for additional information.
        # Corresponds to the JSON property `expr`
        # @return [Google::Apis::ComputeAlpha::Expr]
        attr_accessor :expr
      
        # Preconfigured versioned expression. If this field is specified, config must
        # also be specified. Available preconfigured expressions along with their
        # requirements are: SRC_IPS_V1 - must specify the corresponding src_ip_range
        # field in config.
        # Corresponds to the JSON property `versionedExpr`
        # @return [String]
        attr_accessor :versioned_expr
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @config = args[:config] if args.key?(:config)
          @expr = args[:expr] if args.key?(:expr)
          @versioned_expr = args[:versioned_expr] if args.key?(:versioned_expr)
        end
      end
      
      # 
      class SecurityPolicyRuleMatcherConfig
        include Google::Apis::Core::Hashable
      
        # CIDR IP address range.
        # This field may only be specified when versioned_expr is set to FIREWALL.
        # Corresponds to the JSON property `destIpRanges`
        # @return [Array<String>]
        attr_accessor :dest_ip_ranges
      
        # Pairs of IP protocols and ports that the rule should match.
        # This field may only be specified when versioned_expr is set to FIREWALL.
        # Corresponds to the JSON property `destPorts`
        # @return [Array<Google::Apis::ComputeAlpha::SecurityPolicyRuleMatcherConfigDestinationPort>]
        attr_accessor :dest_ports
      
        # Pairs of IP protocols and ports that the rule should match.
        # This field may only be specified when versioned_expr is set to FIREWALL.
        # Corresponds to the JSON property `layer4Configs`
        # @return [Array<Google::Apis::ComputeAlpha::SecurityPolicyRuleMatcherConfigLayer4Config>]
        attr_accessor :layer4_configs
      
        # CIDR IP address range. Maximum number of src_ip_ranges allowed is 10.
        # Corresponds to the JSON property `srcIpRanges`
        # @return [Array<String>]
        attr_accessor :src_ip_ranges
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @dest_ip_ranges = args[:dest_ip_ranges] if args.key?(:dest_ip_ranges)
          @dest_ports = args[:dest_ports] if args.key?(:dest_ports)
          @layer4_configs = args[:layer4_configs] if args.key?(:layer4_configs)
          @src_ip_ranges = args[:src_ip_ranges] if args.key?(:src_ip_ranges)
        end
      end
      
      # 
      class SecurityPolicyRuleMatcherConfigDestinationPort
        include Google::Apis::Core::Hashable
      
        # The IP protocol to which this rule applies. The protocol type is required when
        # creating a firewall rule. This value can either be one of the following well
        # known protocol strings (tcp, udp, icmp, esp, ah, ipip, sctp), or the IP
        # protocol number.
        # Corresponds to the JSON property `ipProtocol`
        # @return [String]
        attr_accessor :ip_protocol
      
        # An optional list of ports to which this rule applies. This field is only
        # applicable for UDP or TCP protocol. Each entry must be either an integer or a
        # range. If not specified, this rule applies to connections through any port.
        # Example inputs include: ["22"], ["80","443"], and ["12345-12349"].
        # This field may only be specified when versioned_expr is set to FIREWALL.
        # Corresponds to the JSON property `ports`
        # @return [Array<String>]
        attr_accessor :ports
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @ip_protocol = args[:ip_protocol] if args.key?(:ip_protocol)
          @ports = args[:ports] if args.key?(:ports)
        end
      end
      
      # 
      class SecurityPolicyRuleMatcherConfigLayer4Config
        include Google::Apis::Core::Hashable
      
        # The IP protocol to which this rule applies. The protocol type is required when
        # creating a firewall rule. This value can either be one of the following well
        # known protocol strings (tcp, udp, icmp, esp, ah, ipip, sctp), or the IP
        # protocol number.
        # Corresponds to the JSON property `ipProtocol`
        # @return [String]
        attr_accessor :ip_protocol
      
        # An optional list of ports to which this rule applies. This field is only
        # applicable for UDP or TCP protocol. Each entry must be either an integer or a
        # range. If not specified, this rule applies to connections through any port.
        # Example inputs include: ["22"], ["80","443"], and ["12345-12349"].
        # This field may only be specified when versioned_expr is set to FIREWALL.
        # Corresponds to the JSON property `ports`
        # @return [Array<String>]
        attr_accessor :ports
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @ip_protocol = args[:ip_protocol] if args.key?(:ip_protocol)
          @ports = args[:ports] if args.key?(:ports)
        end
      end
      
      # 
      class SecurityPolicyRuleRateLimitOptions
        include Google::Apis::Core::Hashable
      
        # Can only be specified if the action for the rule is "rate_based_ban". If
        # specified, the key will be banned for the configured 'ban_duration' when the
        # number of requests that exceed the 'rate_limit_threshold' also exceed this '
        # ban_threshold'.
        # Corresponds to the JSON property `banDurationSec`
        # @return [Fixnum]
        attr_accessor :ban_duration_sec
      
        # Can only be specified if the action for the rule is "rate_based_ban". If
        # specified, the key will be banned for the configured 'ban_duration' when the
        # number of requests that exceed the 'rate_limit_threshold' also exceed this '
        # ban_threshold'.
        # Corresponds to the JSON property `banThreshold`
        # @return [Google::Apis::ComputeAlpha::SecurityPolicyRuleRateLimitOptionsThreshold]
        attr_accessor :ban_threshold
      
        # Can only be specified if the action for the rule is "rate_based_ban" If
        # specified, determines the time (in seconds) the traffic will continue to be
        # blocked by the rate limit after the rate falls below the threshold. The
        # default value is 0 seconds. [Deprecated] This field is deprecated.
        # Corresponds to the JSON property `blockDuration`
        # @return [Fixnum]
        attr_accessor :block_duration
      
        # Action to take when requests are under the given threshold. When requests are
        # throttled, this is also the action for all requests which are not dropped.
        # Valid options are "allow", "fairshare", and "drop_overload".
        # Corresponds to the JSON property `conformAction`
        # @return [String]
        attr_accessor :conform_action
      
        # Determines the key to enforce the threshold_rps limit on. If key is "IP", each
        # IP has this limit enforced separately, whereas "ALL_IPs" means a single limit
        # is applied to all requests matching this rule.
        # Corresponds to the JSON property `enforceOnKey`
        # @return [String]
        attr_accessor :enforce_on_key
      
        # When a request is denied, returns the HTTP response code specified. Valid
        # options are "deny()" where valid values for status are 403, 404, 429, and 502.
        # Corresponds to the JSON property `exceedAction`
        # @return [String]
        attr_accessor :exceed_action
      
        # Threshold at which to begin ratelimiting.
        # Corresponds to the JSON property `rateLimitThreshold`
        # @return [Google::Apis::ComputeAlpha::SecurityPolicyRuleRateLimitOptionsThreshold]
        attr_accessor :rate_limit_threshold
      
        # Rate in requests per second at which to begin ratelimiting. [Deprecated] This
        # field is deprecated.
        # Corresponds to the JSON property `thresholdRps`
        # @return [Fixnum]
        attr_accessor :threshold_rps
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @ban_duration_sec = args[:ban_duration_sec] if args.key?(:ban_duration_sec)
          @ban_threshold = args[:ban_threshold] if args.key?(:ban_threshold)
          @block_duration = args[:block_duration] if args.key?(:block_duration)
          @conform_action = args[:conform_action] if args.key?(:conform_action)
          @enforce_on_key = args[:enforce_on_key] if args.key?(:enforce_on_key)
          @exceed_action = args[:exceed_action] if args.key?(:exceed_action)
          @rate_limit_threshold = args[:rate_limit_threshold] if args.key?(:rate_limit_threshold)
          @threshold_rps = args[:threshold_rps] if args.key?(:threshold_rps)
        end
      end
      
      # 
      class SecurityPolicyRuleRateLimitOptionsThreshold
        include Google::Apis::Core::Hashable
      
        # Number of HTTP(S) requests for calculating the threshold.
        # Corresponds to the JSON property `count`
        # @return [Fixnum]
        attr_accessor :count
      
        # Interval over which the threshold is computed.
        # Corresponds to the JSON property `intervalSec`
        # @return [Fixnum]
        attr_accessor :interval_sec
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @count = args[:count] if args.key?(:count)
          @interval_sec = args[:interval_sec] if args.key?(:interval_sec)
        end
      end
      
      # The authentication and authorization settings for a BackendService.
      class SecuritySettings
        include Google::Apis::Core::Hashable
      
        # [Deprecated] Use clientTlsPolicy instead.
        # Corresponds to the JSON property `authentication`
        # @return [String]
        attr_accessor :authentication
      
        # [Deprecated] The authentication settings for the backend service. The
        # authentication settings for the backend service.
        # Corresponds to the JSON property `authenticationPolicy`
        # @return [Google::Apis::ComputeAlpha::AuthenticationPolicy]
        attr_accessor :authentication_policy
      
        # [Deprecated] Authorization configuration provides service-level and method-
        # level access control for a service. control for a service.
        # Corresponds to the JSON property `authorizationConfig`
        # @return [Google::Apis::ComputeAlpha::AuthorizationConfig]
        attr_accessor :authorization_config
      
        # Optional. A URL referring to a networksecurity.ClientTlsPolicy resource that
        # describes how clients should authenticate with this service's backends.
        # clientTlsPolicy only applies to a global BackendService with the
        # loadBalancingScheme set to INTERNAL_SELF_MANAGED.
        # If left blank, communications are not encrypted.
        # Note: This field currently has no impact.
        # Corresponds to the JSON property `clientTlsPolicy`
        # @return [String]
        attr_accessor :client_tls_policy
      
        # [Deprecated] The client side authentication settings for connection
        # originating from the backend service. the backend service.
        # Corresponds to the JSON property `clientTlsSettings`
        # @return [Google::Apis::ComputeAlpha::ClientTlsSettings]
        attr_accessor :client_tls_settings
      
        # Optional. A list of Subject Alternative Names (SANs) that the client verifies
        # during a mutual TLS handshake with an server/endpoint for this BackendService.
        # When the server presents its X.509 certificate to the client, the client
        # inspects the certificate's subjectAltName field. If the field contains one of
        # the specified values, the communication continues. Otherwise, it fails. This
        # additional check enables the client to verify that the server is authorized to
        # run the requested service.
        # Note that the contents of the server certificate's subjectAltName field are
        # configured by the Public Key Infrastructure which provisions server identities.
        # Only applies to a global BackendService with loadBalancingScheme set to
        # INTERNAL_SELF_MANAGED. Only applies when BackendService has an attached
        # clientTlsPolicy with clientCertificate (mTLS mode).
        # Note: This field currently has no impact.
        # Corresponds to the JSON property `subjectAltNames`
        # @return [Array<String>]
        attr_accessor :subject_alt_names
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @authentication = args[:authentication] if args.key?(:authentication)
          @authentication_policy = args[:authentication_policy] if args.key?(:authentication_policy)
          @authorization_config = args[:authorization_config] if args.key?(:authorization_config)
          @client_tls_policy = args[:client_tls_policy] if args.key?(:client_tls_policy)
          @client_tls_settings = args[:client_tls_settings] if args.key?(:client_tls_settings)
          @subject_alt_names = args[:subject_alt_names] if args.key?(:subject_alt_names)
        end
      end
      
      # An instance's serial console output.
      class SerialPortOutput
        include Google::Apis::Core::Hashable
      
        # [Output Only] The contents of the console output.
        # Corresponds to the JSON property `contents`
        # @return [String]
        attr_accessor :contents
      
        # [Output Only] Type of the resource. Always compute#serialPortOutput for serial
        # port output.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] The position of the next byte of content, regardless of whether
        # the content exists, following the output returned in the `contents` property.
        # Use this value in the next request as the start parameter.
        # Corresponds to the JSON property `next`
        # @return [Fixnum]
        attr_accessor :next
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # The starting byte position of the output that was returned. This should match
        # the start parameter sent with the request. If the serial console output
        # exceeds the size of the buffer (1 MB), older output is overwritten by newer
        # content. The output start value will indicate the byte position of the output
        # that was returned, which might be different than the `start` value that was
        # specified in the request.
        # Corresponds to the JSON property `start`
        # @return [Fixnum]
        attr_accessor :start
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @contents = args[:contents] if args.key?(:contents)
          @kind = args[:kind] if args.key?(:kind)
          @next = args[:next] if args.key?(:next)
          @self_link = args[:self_link] if args.key?(:self_link)
          @start = args[:start] if args.key?(:start)
        end
      end
      
      # 
      class ServerBinding
        include Google::Apis::Core::Hashable
      
        # 
        # Corresponds to the JSON property `type`
        # @return [String]
        attr_accessor :type
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @type = args[:type] if args.key?(:type)
        end
      end
      
      # The TLS settings for the server.
      class ServerTlsSettings
        include Google::Apis::Core::Hashable
      
        # [Deprecated] The TLS settings for the client or server. The TLS settings for
        # the client or server.
        # Corresponds to the JSON property `proxyTlsContext`
        # @return [Google::Apis::ComputeAlpha::TlsContext]
        attr_accessor :proxy_tls_context
      
        # A list of alternate names to verify the subject identity in the certificate
        # presented by the client.
        # Corresponds to the JSON property `subjectAltNames`
        # @return [Array<String>]
        attr_accessor :subject_alt_names
      
        # Indicates whether connections should be secured using TLS. The value of this
        # field determines how TLS is enforced. This field can be set to one of the
        # following:
        # - SIMPLE Secure connections with standard TLS semantics.
        # - MUTUAL Secure connections to the backends using mutual TLS by presenting
        # client certificates for authentication.
        # Corresponds to the JSON property `tlsMode`
        # @return [String]
        attr_accessor :tls_mode
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @proxy_tls_context = args[:proxy_tls_context] if args.key?(:proxy_tls_context)
          @subject_alt_names = args[:subject_alt_names] if args.key?(:subject_alt_names)
          @tls_mode = args[:tls_mode] if args.key?(:tls_mode)
        end
      end
      
      # A service account.
      class ServiceAccount
        include Google::Apis::Core::Hashable
      
        # Email address of the service account.
        # Corresponds to the JSON property `email`
        # @return [String]
        attr_accessor :email
      
        # The list of scopes to be made available for this service account.
        # Corresponds to the JSON property `scopes`
        # @return [Array<String>]
        attr_accessor :scopes
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @email = args[:email] if args.key?(:email)
          @scopes = args[:scopes] if args.key?(:scopes)
        end
      end
      
      # Represents a ServiceAttachment resource.
      # A service attachment represents a service that a producer has exposed. It
      # encapsulates the load balancer which fronts the service runs and a list of NAT
      # IP ranges that the producers uses to represent the consumers connecting to the
      # service.
      class ServiceAttachment
        include Google::Apis::Core::Hashable
      
        # The connection preference of service attachment. The value can be set to
        # ACCEPT_AUTOMATIC. An ACCEPT_AUTOMATIC service attachment is one that always
        # accepts the connection from consumer forwarding rules.
        # Corresponds to the JSON property `connectionPreference`
        # @return [String]
        attr_accessor :connection_preference
      
        # [Output Only] An array of forwarding rules for all the consumers connected to
        # this service attachment.
        # Corresponds to the JSON property `consumerForwardingRules`
        # @return [Array<Google::Apis::ComputeAlpha::ServiceAttachmentConsumerForwardingRule>]
        attr_accessor :consumer_forwarding_rules
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # [Output Only] The unique identifier for the resource type. The server
        # generates this identifier.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] Type of the resource. Always compute#serviceAttachment for
        # service attachments.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # Name of the resource. Provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # An array of URLs where each entry is the URL of a subnet provided by the
        # service producer to use for NAT in this service attachment.
        # Corresponds to the JSON property `natSubnets`
        # @return [Array<String>]
        attr_accessor :nat_subnets
      
        # The URL of a forwarding rule with loadBalancingScheme INTERNAL* that is
        # serving the endpoint identified by this service attachment.
        # Corresponds to the JSON property `producerForwardingRule`
        # @return [String]
        attr_accessor :producer_forwarding_rule
      
        # [Output Only] URL of the region where the service attachment resides. This
        # field applies only to the region resource. You must specify this field as part
        # of the HTTP request URL. It is not settable as a field in the request body.
        # Corresponds to the JSON property `region`
        # @return [String]
        attr_accessor :region
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @connection_preference = args[:connection_preference] if args.key?(:connection_preference)
          @consumer_forwarding_rules = args[:consumer_forwarding_rules] if args.key?(:consumer_forwarding_rules)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @name = args[:name] if args.key?(:name)
          @nat_subnets = args[:nat_subnets] if args.key?(:nat_subnets)
          @producer_forwarding_rule = args[:producer_forwarding_rule] if args.key?(:producer_forwarding_rule)
          @region = args[:region] if args.key?(:region)
          @self_link = args[:self_link] if args.key?(:self_link)
        end
      end
      
      # [Output Only] A consumer forwarding rule connected to this service attachment.
      class ServiceAttachmentConsumerForwardingRule
        include Google::Apis::Core::Hashable
      
        # The url of a consumer forwarding rule.
        # Corresponds to the JSON property `forwardingRule`
        # @return [String]
        attr_accessor :forwarding_rule
      
        # The status of the forwarding rule.
        # Corresponds to the JSON property `status`
        # @return [String]
        attr_accessor :status
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @forwarding_rule = args[:forwarding_rule] if args.key?(:forwarding_rule)
          @status = args[:status] if args.key?(:status)
        end
      end
      
      # 
      class ServiceAttachmentList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of ServiceAttachment resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::ServiceAttachment>]
        attr_accessor :items
      
        # [Output Only] Type of the resource. Always compute#serviceAttachment for
        # service attachments.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::ServiceAttachmentList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::ServiceAttachmentList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # A set of Shielded Instance options.
      class ShieldedInstanceConfig
        include Google::Apis::Core::Hashable
      
        # Defines whether the instance has integrity monitoring enabled. Enabled by
        # default.
        # Corresponds to the JSON property `enableIntegrityMonitoring`
        # @return [Boolean]
        attr_accessor :enable_integrity_monitoring
        alias_method :enable_integrity_monitoring?, :enable_integrity_monitoring
      
        # Defines whether the instance has Secure Boot enabled. Disabled by default.
        # Corresponds to the JSON property `enableSecureBoot`
        # @return [Boolean]
        attr_accessor :enable_secure_boot
        alias_method :enable_secure_boot?, :enable_secure_boot
      
        # Defines whether the instance has the vTPM enabled. Enabled by default.
        # Corresponds to the JSON property `enableVtpm`
        # @return [Boolean]
        attr_accessor :enable_vtpm
        alias_method :enable_vtpm?, :enable_vtpm
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @enable_integrity_monitoring = args[:enable_integrity_monitoring] if args.key?(:enable_integrity_monitoring)
          @enable_secure_boot = args[:enable_secure_boot] if args.key?(:enable_secure_boot)
          @enable_vtpm = args[:enable_vtpm] if args.key?(:enable_vtpm)
        end
      end
      
      # A shielded Instance identity entry.
      class ShieldedInstanceIdentity
        include Google::Apis::Core::Hashable
      
        # A Shielded Instance Identity Entry.
        # Corresponds to the JSON property `encryptionKey`
        # @return [Google::Apis::ComputeAlpha::ShieldedInstanceIdentityEntry]
        attr_accessor :encryption_key
      
        # [Output Only] Type of the resource. Always compute#shieldedInstanceIdentity
        # for shielded Instance identity entry.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # A Shielded Instance Identity Entry.
        # Corresponds to the JSON property `signingKey`
        # @return [Google::Apis::ComputeAlpha::ShieldedInstanceIdentityEntry]
        attr_accessor :signing_key
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @encryption_key = args[:encryption_key] if args.key?(:encryption_key)
          @kind = args[:kind] if args.key?(:kind)
          @signing_key = args[:signing_key] if args.key?(:signing_key)
        end
      end
      
      # A Shielded Instance Identity Entry.
      class ShieldedInstanceIdentityEntry
        include Google::Apis::Core::Hashable
      
        # A PEM-encoded X.509 certificate. This field can be empty.
        # Corresponds to the JSON property `ekCert`
        # @return [String]
        attr_accessor :ek_cert
      
        # A PEM-encoded public key.
        # Corresponds to the JSON property `ekPub`
        # @return [String]
        attr_accessor :ek_pub
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @ek_cert = args[:ek_cert] if args.key?(:ek_cert)
          @ek_pub = args[:ek_pub] if args.key?(:ek_pub)
        end
      end
      
      # The policy describes the baseline against which Instance boot integrity is
      # measured.
      class ShieldedInstanceIntegrityPolicy
        include Google::Apis::Core::Hashable
      
        # Updates the integrity policy baseline using the measurements from the VM
        # instance's most recent boot.
        # Corresponds to the JSON property `updateAutoLearnPolicy`
        # @return [Boolean]
        attr_accessor :update_auto_learn_policy
        alias_method :update_auto_learn_policy?, :update_auto_learn_policy
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @update_auto_learn_policy = args[:update_auto_learn_policy] if args.key?(:update_auto_learn_policy)
        end
      end
      
      # A set of Shielded VM options.
      class ShieldedVmConfig
        include Google::Apis::Core::Hashable
      
        # Defines whether the instance has integrity monitoring enabled.
        # Corresponds to the JSON property `enableIntegrityMonitoring`
        # @return [Boolean]
        attr_accessor :enable_integrity_monitoring
        alias_method :enable_integrity_monitoring?, :enable_integrity_monitoring
      
        # Defines whether the instance has Secure Boot enabled.
        # Corresponds to the JSON property `enableSecureBoot`
        # @return [Boolean]
        attr_accessor :enable_secure_boot
        alias_method :enable_secure_boot?, :enable_secure_boot
      
        # Defines whether the instance has the vTPM enabled.
        # Corresponds to the JSON property `enableVtpm`
        # @return [Boolean]
        attr_accessor :enable_vtpm
        alias_method :enable_vtpm?, :enable_vtpm
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @enable_integrity_monitoring = args[:enable_integrity_monitoring] if args.key?(:enable_integrity_monitoring)
          @enable_secure_boot = args[:enable_secure_boot] if args.key?(:enable_secure_boot)
          @enable_vtpm = args[:enable_vtpm] if args.key?(:enable_vtpm)
        end
      end
      
      # A shielded VM identity entry.
      class ShieldedVmIdentity
        include Google::Apis::Core::Hashable
      
        # A Shielded Instance Identity Entry.
        # Corresponds to the JSON property `encryptionKey`
        # @return [Google::Apis::ComputeAlpha::ShieldedVmIdentityEntry]
        attr_accessor :encryption_key
      
        # [Output Only] Type of the resource. Always compute#shieldedVmIdentity for
        # shielded VM identity entry.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # A Shielded Instance Identity Entry.
        # Corresponds to the JSON property `signingKey`
        # @return [Google::Apis::ComputeAlpha::ShieldedVmIdentityEntry]
        attr_accessor :signing_key
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @encryption_key = args[:encryption_key] if args.key?(:encryption_key)
          @kind = args[:kind] if args.key?(:kind)
          @signing_key = args[:signing_key] if args.key?(:signing_key)
        end
      end
      
      # A Shielded Instance Identity Entry.
      class ShieldedVmIdentityEntry
        include Google::Apis::Core::Hashable
      
        # A PEM-encoded X.509 certificate. This field can be empty.
        # Corresponds to the JSON property `ekCert`
        # @return [String]
        attr_accessor :ek_cert
      
        # A PEM-encoded public key.
        # Corresponds to the JSON property `ekPub`
        # @return [String]
        attr_accessor :ek_pub
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @ek_cert = args[:ek_cert] if args.key?(:ek_cert)
          @ek_pub = args[:ek_pub] if args.key?(:ek_pub)
        end
      end
      
      # The policy describes the baseline against which VM instance boot integrity is
      # measured.
      class ShieldedVmIntegrityPolicy
        include Google::Apis::Core::Hashable
      
        # Updates the integrity policy baseline using the measurements from the VM
        # instance's most recent boot.
        # Corresponds to the JSON property `updateAutoLearnPolicy`
        # @return [Boolean]
        attr_accessor :update_auto_learn_policy
        alias_method :update_auto_learn_policy?, :update_auto_learn_policy
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @update_auto_learn_policy = args[:update_auto_learn_policy] if args.key?(:update_auto_learn_policy)
        end
      end
      
      # Represents a customer-supplied Signing Key used by Cloud CDN Signed URLs
      class SignedUrlKey
        include Google::Apis::Core::Hashable
      
        # Name of the key. The name must be 1-63 characters long, and comply with
        # RFC1035. Specifically, the name must be 1-63 characters long and match the
        # regular expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the first
        # character must be a lowercase letter, and all following characters must be a
        # dash, lowercase letter, or digit, except the last character, which cannot be a
        # dash.
        # Corresponds to the JSON property `keyName`
        # @return [String]
        attr_accessor :key_name
      
        # 128-bit key value used for signing the URL. The key value must be a valid RFC
        # 4648 Section 5 base64url encoded string.
        # Corresponds to the JSON property `keyValue`
        # @return [String]
        attr_accessor :key_value
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @key_name = args[:key_name] if args.key?(:key_name)
          @key_value = args[:key_value] if args.key?(:key_value)
        end
      end
      
      # Represents a Persistent Disk Snapshot resource.
      # You can use snapshots to back up data on a regular interval. For more
      # information, read  Creating persistent disk snapshots. (== resource_for `$
      # api_version`.snapshots ==)
      class Snapshot
        include Google::Apis::Core::Hashable
      
        # [Output Only] Set to true if snapshots are automatically created by applying
        # resource policy on the target disk.
        # Corresponds to the JSON property `autoCreated`
        # @return [Boolean]
        attr_accessor :auto_created
        alias_method :auto_created?, :auto_created
      
        # Creates the new snapshot in the snapshot chain labeled with the specified name.
        # The chain name must be 1-63 characters long and comply with RFC1035. This is
        # an uncommon option only for advanced service owners who needs to create
        # separate snapshot chains, for example, for chargeback tracking. When you
        # describe your snapshot resource, this field is visible only if it has a non-
        # empty value.
        # Corresponds to the JSON property `chainName`
        # @return [String]
        attr_accessor :chain_name
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # [Output Only] Size of the source disk, specified in GB.
        # Corresponds to the JSON property `diskSizeGb`
        # @return [Fixnum]
        attr_accessor :disk_size_gb
      
        # [Output Only] Number of bytes downloaded to restore a snapshot to a disk.
        # Corresponds to the JSON property `downloadBytes`
        # @return [Fixnum]
        attr_accessor :download_bytes
      
        # [Input Only] Whether to attempt an application consistent snapshot by
        # informing the OS to prepare for the snapshot process. Currently only supported
        # on Windows instances using the Volume Shadow Copy Service (VSS).
        # Corresponds to the JSON property `guestFlush`
        # @return [Boolean]
        attr_accessor :guest_flush
        alias_method :guest_flush?, :guest_flush
      
        # [Output Only] A list of features to enable on the guest operating system.
        # Applicable only for bootable images. Read  Enabling guest operating system
        # features to see a list of available options.
        # Corresponds to the JSON property `guestOsFeatures`
        # @return [Array<Google::Apis::ComputeAlpha::GuestOsFeature>]
        attr_accessor :guest_os_features
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] Type of the resource. Always compute#snapshot for Snapshot
        # resources.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # A fingerprint for the labels being applied to this snapshot, which is
        # essentially a hash of the labels set used for optimistic locking. The
        # fingerprint is initially generated by Compute Engine and changes after every
        # request to modify or update labels. You must always provide an up-to-date
        # fingerprint hash in order to update or change labels, otherwise the request
        # will fail with error 412 conditionNotMet.
        # To see the latest fingerprint, make a get() request to retrieve a snapshot.
        # Corresponds to the JSON property `labelFingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :label_fingerprint
      
        # Labels to apply to this snapshot. These can be later modified by the setLabels
        # method. Label values may be empty.
        # Corresponds to the JSON property `labels`
        # @return [Hash<String,String>]
        attr_accessor :labels
      
        # [Output Only] Integer license codes indicating which licenses are attached to
        # this snapshot.
        # Corresponds to the JSON property `licenseCodes`
        # @return [Array<Fixnum>]
        attr_accessor :license_codes
      
        # [Output Only] A list of public visible licenses that apply to this snapshot.
        # This can be because the original image had licenses attached (such as a
        # Windows image).
        # Corresponds to the JSON property `licenses`
        # @return [Array<String>]
        attr_accessor :licenses
      
        # Name of the resource; provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # [Output Only] Reserved for future use.
        # Corresponds to the JSON property `satisfiesPzs`
        # @return [Boolean]
        attr_accessor :satisfies_pzs
        alias_method :satisfies_pzs?, :satisfies_pzs
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource's resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # Encrypts the snapshot using a customer-supplied encryption key.
        # After you encrypt a snapshot using a customer-supplied key, you must provide
        # the same key if you use the snapshot later. For example, you must provide the
        # encryption key when you create a disk from the encrypted snapshot in a future
        # request.
        # Customer-supplied encryption keys do not protect access to metadata of the
        # snapshot.
        # If you do not provide an encryption key when creating the snapshot, then the
        # snapshot will be encrypted using an automatically generated key and you do not
        # need to provide a key to use the snapshot later.
        # Corresponds to the JSON property `snapshotEncryptionKey`
        # @return [Google::Apis::ComputeAlpha::CustomerEncryptionKey]
        attr_accessor :snapshot_encryption_key
      
        # The source disk used to create this snapshot.
        # Corresponds to the JSON property `sourceDisk`
        # @return [String]
        attr_accessor :source_disk
      
        # The customer-supplied encryption key of the source disk. Required if the
        # source disk is protected by a customer-supplied encryption key.
        # Corresponds to the JSON property `sourceDiskEncryptionKey`
        # @return [Google::Apis::ComputeAlpha::CustomerEncryptionKey]
        attr_accessor :source_disk_encryption_key
      
        # [Output Only] The ID value of the disk used to create this snapshot. This
        # value may be used to determine whether the snapshot was taken from the current
        # or a previous instance of a given disk name.
        # Corresponds to the JSON property `sourceDiskId`
        # @return [String]
        attr_accessor :source_disk_id
      
        # [Output Only] The status of the snapshot. This can be CREATING, DELETING,
        # FAILED, READY, or UPLOADING.
        # Corresponds to the JSON property `status`
        # @return [String]
        attr_accessor :status
      
        # [Output Only] A size of the storage used by the snapshot. As snapshots share
        # storage, this number is expected to change with snapshot creation/deletion.
        # Corresponds to the JSON property `storageBytes`
        # @return [Fixnum]
        attr_accessor :storage_bytes
      
        # [Output Only] An indicator whether storageBytes is in a stable state or it is
        # being adjusted as a result of shared storage reallocation. This status can
        # either be UPDATING, meaning the size of the snapshot is being updated, or
        # UP_TO_DATE, meaning the size of the snapshot is up-to-date.
        # Corresponds to the JSON property `storageBytesStatus`
        # @return [String]
        attr_accessor :storage_bytes_status
      
        # Cloud Storage bucket storage location of the snapshot (regional or multi-
        # regional).
        # Corresponds to the JSON property `storageLocations`
        # @return [Array<String>]
        attr_accessor :storage_locations
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @auto_created = args[:auto_created] if args.key?(:auto_created)
          @chain_name = args[:chain_name] if args.key?(:chain_name)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @disk_size_gb = args[:disk_size_gb] if args.key?(:disk_size_gb)
          @download_bytes = args[:download_bytes] if args.key?(:download_bytes)
          @guest_flush = args[:guest_flush] if args.key?(:guest_flush)
          @guest_os_features = args[:guest_os_features] if args.key?(:guest_os_features)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @label_fingerprint = args[:label_fingerprint] if args.key?(:label_fingerprint)
          @labels = args[:labels] if args.key?(:labels)
          @license_codes = args[:license_codes] if args.key?(:license_codes)
          @licenses = args[:licenses] if args.key?(:licenses)
          @name = args[:name] if args.key?(:name)
          @satisfies_pzs = args[:satisfies_pzs] if args.key?(:satisfies_pzs)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @snapshot_encryption_key = args[:snapshot_encryption_key] if args.key?(:snapshot_encryption_key)
          @source_disk = args[:source_disk] if args.key?(:source_disk)
          @source_disk_encryption_key = args[:source_disk_encryption_key] if args.key?(:source_disk_encryption_key)
          @source_disk_id = args[:source_disk_id] if args.key?(:source_disk_id)
          @status = args[:status] if args.key?(:status)
          @storage_bytes = args[:storage_bytes] if args.key?(:storage_bytes)
          @storage_bytes_status = args[:storage_bytes_status] if args.key?(:storage_bytes_status)
          @storage_locations = args[:storage_locations] if args.key?(:storage_locations)
        end
      end
      
      # Contains a list of Snapshot resources.
      class SnapshotList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of Snapshot resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::Snapshot>]
        attr_accessor :items
      
        # Type of resource.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::SnapshotList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::SnapshotList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class SourceDiskEncryptionKey
        include Google::Apis::Core::Hashable
      
        # The customer-supplied encryption key of the source disk. Required if the
        # source disk is protected by a customer-supplied encryption key.
        # Corresponds to the JSON property `diskEncryptionKey`
        # @return [Google::Apis::ComputeAlpha::CustomerEncryptionKey]
        attr_accessor :disk_encryption_key
      
        # URL of the disk attached to the source instance. This can be a full or valid
        # partial URL. For example, the following are valid values:
        # - https://www.googleapis.com/compute/v1/projects/project/zones/zone/disks/disk
        # - projects/project/zones/zone/disks/disk
        # - zones/zone/disks/disk
        # Corresponds to the JSON property `sourceDisk`
        # @return [String]
        attr_accessor :source_disk
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @disk_encryption_key = args[:disk_encryption_key] if args.key?(:disk_encryption_key)
          @source_disk = args[:source_disk] if args.key?(:source_disk)
        end
      end
      
      # A specification of the parameters to use when creating the instance template
      # from a source instance.
      class SourceInstanceParams
        include Google::Apis::Core::Hashable
      
        # Attached disks configuration. If not provided, defaults are applied: For boot
        # disk and any other R/W disks, new custom images will be created from each disk.
        # For read-only disks, they will be attached in read-only mode. Local SSD disks
        # will be created as blank volumes.
        # Corresponds to the JSON property `diskConfigs`
        # @return [Array<Google::Apis::ComputeAlpha::DiskInstantiationConfig>]
        attr_accessor :disk_configs
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @disk_configs = args[:disk_configs] if args.key?(:disk_configs)
        end
      end
      
      # 
      class SourceInstanceProperties
        include Google::Apis::Core::Hashable
      
        # Enables instances created based on this machine image to send packets with
        # source IP addresses other than their own and receive packets with destination
        # IP addresses other than their own. If these instances will be used as an IP
        # gateway or it will be set as the next-hop in a Route resource, specify true.
        # If unsure, leave this set to false. See the Enable IP forwarding documentation
        # for more information.
        # Corresponds to the JSON property `canIpForward`
        # @return [Boolean]
        attr_accessor :can_ip_forward
        alias_method :can_ip_forward?, :can_ip_forward
      
        # Whether the instance created from this machine image should be protected
        # against deletion.
        # Corresponds to the JSON property `deletionProtection`
        # @return [Boolean]
        attr_accessor :deletion_protection
        alias_method :deletion_protection?, :deletion_protection
      
        # An optional text description for the instances that are created from this
        # machine image.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # An array of disks that are associated with the instances that are created from
        # this machine image.
        # Corresponds to the JSON property `disks`
        # @return [Array<Google::Apis::ComputeAlpha::SavedAttachedDisk>]
        attr_accessor :disks
      
        # A list of guest accelerator cards' type and count to use for instances created
        # from this machine image.
        # Corresponds to the JSON property `guestAccelerators`
        # @return [Array<Google::Apis::ComputeAlpha::AcceleratorConfig>]
        attr_accessor :guest_accelerators
      
        # Labels to apply to instances that are created from this machine image.
        # Corresponds to the JSON property `labels`
        # @return [Hash<String,String>]
        attr_accessor :labels
      
        # The machine type to use for instances that are created from this machine image.
        # Corresponds to the JSON property `machineType`
        # @return [String]
        attr_accessor :machine_type
      
        # A metadata key/value entry.
        # Corresponds to the JSON property `metadata`
        # @return [Google::Apis::ComputeAlpha::Metadata]
        attr_accessor :metadata
      
        # Minimum cpu/platform to be used by instances created from this machine image.
        # The instance may be scheduled on the specified or newer cpu/platform.
        # Applicable values are the friendly names of CPU platforms, such as
        # minCpuPlatform: "Intel Haswell" or minCpuPlatform: "Intel Sandy Bridge". For
        # more information, read Specifying a Minimum CPU Platform.
        # Corresponds to the JSON property `minCpuPlatform`
        # @return [String]
        attr_accessor :min_cpu_platform
      
        # An array of network access configurations for this interface.
        # Corresponds to the JSON property `networkInterfaces`
        # @return [Array<Google::Apis::ComputeAlpha::NetworkInterface>]
        attr_accessor :network_interfaces
      
        # Sets the scheduling options for an Instance. NextID: 13
        # Corresponds to the JSON property `scheduling`
        # @return [Google::Apis::ComputeAlpha::Scheduling]
        attr_accessor :scheduling
      
        # A list of service accounts with specified scopes. Access tokens for these
        # service accounts are available to the instances that are created from this
        # machine image. Use metadata queries to obtain the access tokens for these
        # instances.
        # Corresponds to the JSON property `serviceAccounts`
        # @return [Array<Google::Apis::ComputeAlpha::ServiceAccount>]
        attr_accessor :service_accounts
      
        # A set of instance tags.
        # Corresponds to the JSON property `tags`
        # @return [Google::Apis::ComputeAlpha::Tags]
        attr_accessor :tags
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @can_ip_forward = args[:can_ip_forward] if args.key?(:can_ip_forward)
          @deletion_protection = args[:deletion_protection] if args.key?(:deletion_protection)
          @description = args[:description] if args.key?(:description)
          @disks = args[:disks] if args.key?(:disks)
          @guest_accelerators = args[:guest_accelerators] if args.key?(:guest_accelerators)
          @labels = args[:labels] if args.key?(:labels)
          @machine_type = args[:machine_type] if args.key?(:machine_type)
          @metadata = args[:metadata] if args.key?(:metadata)
          @min_cpu_platform = args[:min_cpu_platform] if args.key?(:min_cpu_platform)
          @network_interfaces = args[:network_interfaces] if args.key?(:network_interfaces)
          @scheduling = args[:scheduling] if args.key?(:scheduling)
          @service_accounts = args[:service_accounts] if args.key?(:service_accounts)
          @tags = args[:tags] if args.key?(:tags)
        end
      end
      
      # Represents an SSL Certificate resource.
      # Google Compute Engine has two SSL Certificate resources:
      # * [Global](/compute/docs/reference/rest/`$api_version`/sslCertificates) * [
      # Regional](/compute/docs/reference/rest/`$api_version`/regionSslCertificates)
      # The sslCertificates are used by:
      # - external HTTPS load balancers
      # - SSL proxy load balancers
      # The regionSslCertificates are used by internal HTTPS load balancers.
      # Optionally, certificate file contents that you upload can contain a set of up
      # to five PEM-encoded certificates. The API call creates an object (
      # sslCertificate) that holds this data. You can use SSL keys and certificates to
      # secure connections to a load balancer. For more information, read  Creating
      # and using SSL certificates, SSL certificates quotas and limits, and
      # Troubleshooting SSL certificates. (== resource_for `$api_version`.
      # sslCertificates ==) (== resource_for `$api_version`.regionSslCertificates ==)
      class SslCertificate
        include Google::Apis::Core::Hashable
      
        # A value read into memory from a certificate file. The certificate file must be
        # in PEM format. The certificate chain must be no greater than 5 certs long. The
        # chain must include at least one intermediate cert.
        # Corresponds to the JSON property `certificate`
        # @return [String]
        attr_accessor :certificate
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # [Output Only] Expire time of the certificate. RFC3339
        # Corresponds to the JSON property `expireTime`
        # @return [String]
        attr_accessor :expire_time
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] Type of the resource. Always compute#sslCertificate for SSL
        # certificates.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # Configuration and status of a managed SSL certificate.
        # Corresponds to the JSON property `managed`
        # @return [Google::Apis::ComputeAlpha::SslCertificateManagedSslCertificate]
        attr_accessor :managed
      
        # Name of the resource. Provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # A value read into memory from a write-only private key file. The private key
        # file must be in PEM format. For security, only insert requests include this
        # field.
        # Corresponds to the JSON property `privateKey`
        # @return [String]
        attr_accessor :private_key
      
        # [Output Only] URL of the region where the regional SSL Certificate resides.
        # This field is not applicable to global SSL Certificate.
        # Corresponds to the JSON property `region`
        # @return [String]
        attr_accessor :region
      
        # [Output only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # Configuration and status of a self-managed SSL certificate.
        # Corresponds to the JSON property `selfManaged`
        # @return [Google::Apis::ComputeAlpha::SslCertificateSelfManagedSslCertificate]
        attr_accessor :self_managed
      
        # [Output Only] Domains associated with the certificate via Subject Alternative
        # Name.
        # Corresponds to the JSON property `subjectAlternativeNames`
        # @return [Array<String>]
        attr_accessor :subject_alternative_names
      
        # (Optional) Specifies the type of SSL certificate, either "SELF_MANAGED" or "
        # MANAGED". If not specified, the certificate is self-managed and the fields
        # certificate and private_key are used.
        # Corresponds to the JSON property `type`
        # @return [String]
        attr_accessor :type
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @certificate = args[:certificate] if args.key?(:certificate)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @expire_time = args[:expire_time] if args.key?(:expire_time)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @managed = args[:managed] if args.key?(:managed)
          @name = args[:name] if args.key?(:name)
          @private_key = args[:private_key] if args.key?(:private_key)
          @region = args[:region] if args.key?(:region)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @self_managed = args[:self_managed] if args.key?(:self_managed)
          @subject_alternative_names = args[:subject_alternative_names] if args.key?(:subject_alternative_names)
          @type = args[:type] if args.key?(:type)
        end
      end
      
      # 
      class SslCertificateAggregatedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of SslCertificatesScopedList resources.
        # Corresponds to the JSON property `items`
        # @return [Hash<String,Google::Apis::ComputeAlpha::SslCertificatesScopedList>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#sslCertificateAggregatedList
        # for lists of SSL Certificates.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Unreachable resources.
        # Corresponds to the JSON property `unreachables`
        # @return [Array<String>]
        attr_accessor :unreachables
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::SslCertificateAggregatedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @unreachables = args[:unreachables] if args.key?(:unreachables)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::SslCertificateAggregatedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Contains a list of SslCertificate resources.
      class SslCertificateList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of SslCertificate resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::SslCertificate>]
        attr_accessor :items
      
        # Type of resource.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::SslCertificateList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::SslCertificateList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Configuration and status of a managed SSL certificate.
      class SslCertificateManagedSslCertificate
        include Google::Apis::Core::Hashable
      
        # [Output only] Detailed statuses of the domains specified for managed
        # certificate resource.
        # Corresponds to the JSON property `domainStatus`
        # @return [Hash<String,String>]
        attr_accessor :domain_status
      
        # The domains for which a managed SSL certificate will be generated. Currently
        # only single-domain certs are supported.
        # Corresponds to the JSON property `domains`
        # @return [Array<String>]
        attr_accessor :domains
      
        # [Output only] Status of the managed certificate resource.
        # Corresponds to the JSON property `status`
        # @return [String]
        attr_accessor :status
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @domain_status = args[:domain_status] if args.key?(:domain_status)
          @domains = args[:domains] if args.key?(:domains)
          @status = args[:status] if args.key?(:status)
        end
      end
      
      # Configuration and status of a self-managed SSL certificate.
      class SslCertificateSelfManagedSslCertificate
        include Google::Apis::Core::Hashable
      
        # A local certificate file. The certificate must be in PEM format. The
        # certificate chain must be no greater than 5 certs long. The chain must include
        # at least one intermediate cert.
        # Corresponds to the JSON property `certificate`
        # @return [String]
        attr_accessor :certificate
      
        # A write-only private key in PEM format. Only insert requests will include this
        # field.
        # Corresponds to the JSON property `privateKey`
        # @return [String]
        attr_accessor :private_key
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @certificate = args[:certificate] if args.key?(:certificate)
          @private_key = args[:private_key] if args.key?(:private_key)
        end
      end
      
      # 
      class SslCertificatesScopedList
        include Google::Apis::Core::Hashable
      
        # List of SslCertificates contained in this scope.
        # Corresponds to the JSON property `sslCertificates`
        # @return [Array<Google::Apis::ComputeAlpha::SslCertificate>]
        attr_accessor :ssl_certificates
      
        # Informational warning which replaces the list of backend services when the
        # list is empty.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::SslCertificatesScopedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @ssl_certificates = args[:ssl_certificates] if args.key?(:ssl_certificates)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # Informational warning which replaces the list of backend services when the
        # list is empty.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::SslCertificatesScopedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class SslPoliciesList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of SslPolicy resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::SslPolicy>]
        attr_accessor :items
      
        # [Output Only] Type of the resource. Always compute#sslPoliciesList for lists
        # of sslPolicies.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::SslPoliciesList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::SslPoliciesList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class SslPoliciesListAvailableFeaturesResponse
        include Google::Apis::Core::Hashable
      
        # 
        # Corresponds to the JSON property `features`
        # @return [Array<String>]
        attr_accessor :features
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @features = args[:features] if args.key?(:features)
        end
      end
      
      # Represents an SSL Policy resource.
      # Use SSL policies to control the SSL features, such as versions and cipher
      # suites, offered by an HTTPS or SSL Proxy load balancer. For more information,
      # read  SSL Policy Concepts. (== resource_for `$api_version`.sslPolicies ==)
      class SslPolicy
        include Google::Apis::Core::Hashable
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # A list of features enabled when the selected profile is CUSTOM. The
        # - method returns the set of features that can be specified in this list. This
        # field must be empty if the profile is not CUSTOM.
        # Corresponds to the JSON property `customFeatures`
        # @return [Array<String>]
        attr_accessor :custom_features
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # [Output Only] The list of features enabled in the SSL policy.
        # Corresponds to the JSON property `enabledFeatures`
        # @return [Array<String>]
        attr_accessor :enabled_features
      
        # Fingerprint of this resource. A hash of the contents stored in this object.
        # This field is used in optimistic locking. This field will be ignored when
        # inserting a SslPolicy. An up-to-date fingerprint must be provided in order to
        # update the SslPolicy, otherwise the request will fail with error 412
        # conditionNotMet.
        # To see the latest fingerprint, make a get() request to retrieve an SslPolicy.
        # Corresponds to the JSON property `fingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :fingerprint
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output only] Type of the resource. Always compute#sslPolicyfor SSL policies.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # The minimum version of SSL protocol that can be used by the clients to
        # establish a connection with the load balancer. This can be one of TLS_1_0,
        # TLS_1_1, TLS_1_2.
        # Corresponds to the JSON property `minTlsVersion`
        # @return [String]
        attr_accessor :min_tls_version
      
        # Name of the resource. The name must be 1-63 characters long, and comply with
        # RFC1035. Specifically, the name must be 1-63 characters long and match the
        # regular expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the first
        # character must be a lowercase letter, and all following characters must be a
        # dash, lowercase letter, or digit, except the last character, which cannot be a
        # dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # Profile specifies the set of SSL features that can be used by the load
        # balancer when negotiating SSL with clients. This can be one of COMPATIBLE,
        # MODERN, RESTRICTED, or CUSTOM. If using CUSTOM, the set of SSL features to
        # enable must be specified in the customFeatures field.
        # Corresponds to the JSON property `profile`
        # @return [String]
        attr_accessor :profile
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # The TLS settings for the server.
        # Corresponds to the JSON property `tlsSettings`
        # @return [Google::Apis::ComputeAlpha::ServerTlsSettings]
        attr_accessor :tls_settings
      
        # [Output Only] If potential misconfigurations are detected for this SSL policy,
        # this field will be populated with warning messages.
        # Corresponds to the JSON property `warnings`
        # @return [Array<Google::Apis::ComputeAlpha::SslPolicy::Warning>]
        attr_accessor :warnings
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @custom_features = args[:custom_features] if args.key?(:custom_features)
          @description = args[:description] if args.key?(:description)
          @enabled_features = args[:enabled_features] if args.key?(:enabled_features)
          @fingerprint = args[:fingerprint] if args.key?(:fingerprint)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @min_tls_version = args[:min_tls_version] if args.key?(:min_tls_version)
          @name = args[:name] if args.key?(:name)
          @profile = args[:profile] if args.key?(:profile)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @tls_settings = args[:tls_settings] if args.key?(:tls_settings)
          @warnings = args[:warnings] if args.key?(:warnings)
        end
        
        # 
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::SslPolicy::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class SslPolicyReference
        include Google::Apis::Core::Hashable
      
        # URL of the SSL policy resource. Set this to empty string to clear any existing
        # SSL policy associated with the target proxy resource.
        # Corresponds to the JSON property `sslPolicy`
        # @return [String]
        attr_accessor :ssl_policy
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @ssl_policy = args[:ssl_policy] if args.key?(:ssl_policy)
        end
      end
      
      # 
      class StatefulPolicy
        include Google::Apis::Core::Hashable
      
        # Configuration of preserved resources.
        # Corresponds to the JSON property `preservedState`
        # @return [Google::Apis::ComputeAlpha::StatefulPolicyPreservedState]
        attr_accessor :preserved_state
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @preserved_state = args[:preserved_state] if args.key?(:preserved_state)
        end
      end
      
      # Configuration of preserved resources.
      class StatefulPolicyPreservedState
        include Google::Apis::Core::Hashable
      
        # Disks created on the instances that will be preserved on instance delete,
        # update, etc. This map is keyed with the device names of the disks.
        # Corresponds to the JSON property `disks`
        # @return [Hash<String,Google::Apis::ComputeAlpha::StatefulPolicyPreservedStateDiskDevice>]
        attr_accessor :disks
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @disks = args[:disks] if args.key?(:disks)
        end
      end
      
      # 
      class StatefulPolicyPreservedStateDiskDevice
        include Google::Apis::Core::Hashable
      
        # These stateful disks will never be deleted during autohealing, update or VM
        # instance recreate operations. This flag is used to configure if the disk
        # should be deleted after it is no longer used by the group, e.g. when the given
        # instance or the whole group is deleted. Note: disks attached in READ_ONLY mode
        # cannot be auto-deleted.
        # Corresponds to the JSON property `autoDelete`
        # @return [String]
        attr_accessor :auto_delete
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @auto_delete = args[:auto_delete] if args.key?(:auto_delete)
        end
      end
      
      # Represents a Subnetwork resource.
      # A subnetwork (also known as a subnet) is a logical partition of a Virtual
      # Private Cloud network with one primary IP range and zero or more secondary IP
      # ranges. For more information, read  Virtual Private Cloud (VPC) Network. (==
      # resource_for `$api_version`.subnetworks ==)
      class Subnetwork
        include Google::Apis::Core::Hashable
      
        # Can only be specified if VPC flow logging for this subnetwork is enabled. Sets
        # the aggregation interval for collecting flow logs. Increasing the interval
        # time reduces the amount of generated flow logs for long-lasting connections.
        # Default is an interval of 5 seconds per connection. Valid values:
        # INTERVAL_5_SEC, INTERVAL_30_SEC, INTERVAL_1_MIN, INTERVAL_5_MIN,
        # INTERVAL_10_MIN, INTERVAL_15_MIN.
        # Corresponds to the JSON property `aggregationInterval`
        # @return [String]
        attr_accessor :aggregation_interval
      
        # Whether this subnetwork can conflict with static routes. Setting this to true
        # allows this subnetwork's primary and secondary ranges to conflict with routes
        # that have already been configured on the corresponding network. Static routes
        # will take precedence over the subnetwork route if the route prefix length is
        # at least as large as the subnetwork prefix length.
        # Also, packets destined to IPs within subnetwork may contain private/sensitive
        # data and are prevented from leaving the virtual network. Setting this field to
        # true will disable this feature.
        # The default value is false and applies to all existing subnetworks and
        # automatically created subnetworks.
        # This field cannot be set to true at resource creation time.
        # Corresponds to the JSON property `allowSubnetCidrRoutesOverlap`
        # @return [Boolean]
        attr_accessor :allow_subnet_cidr_routes_overlap
        alias_method :allow_subnet_cidr_routes_overlap?, :allow_subnet_cidr_routes_overlap
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource. This field can be set only at resource creation time.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # Whether to enable flow logging for this subnetwork. If this field is not
        # explicitly set, it will not appear in get listings. If not set the default
        # behavior is to disable flow logging. This field isn't supported with the
        # purpose field set to INTERNAL_HTTPS_LOAD_BALANCER.
        # Corresponds to the JSON property `enableFlowLogs`
        # @return [Boolean]
        attr_accessor :enable_flow_logs
        alias_method :enable_flow_logs?, :enable_flow_logs
      
        # Deprecated in favor of enable in PrivateIpv6GoogleAccess. Whether the VMs in
        # this subnet can directly access Google services via internal IPv6 addresses.
        # This field can be both set at resource creation time and updated using patch.
        # Corresponds to the JSON property `enablePrivateV6Access`
        # @return [Boolean]
        attr_accessor :enable_private_v6_access
        alias_method :enable_private_v6_access?, :enable_private_v6_access
      
        # [Output Only] The range of external IPv6 addresses that are owned by this
        # subnetwork.
        # Corresponds to the JSON property `externalIpv6Prefix`
        # @return [String]
        attr_accessor :external_ipv6_prefix
      
        # Fingerprint of this resource. A hash of the contents stored in this object.
        # This field is used in optimistic locking. This field will be ignored when
        # inserting a Subnetwork. An up-to-date fingerprint must be provided in order to
        # update the Subnetwork, otherwise the request will fail with error 412
        # conditionNotMet.
        # To see the latest fingerprint, make a get() request to retrieve a Subnetwork.
        # Corresponds to the JSON property `fingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :fingerprint
      
        # Can only be specified if VPC flow logging for this subnetwork is enabled. The
        # value of the field must be in [0, 1]. Set the sampling rate of VPC flow logs
        # within the subnetwork where 1.0 means all collected logs are reported and 0.0
        # means no logs are reported. Default is 0.5, which means half of all collected
        # logs are reported.
        # Corresponds to the JSON property `flowSampling`
        # @return [Float]
        attr_accessor :flow_sampling
      
        # [Output Only] The gateway address for default routes to reach destination
        # addresses outside this subnetwork.
        # Corresponds to the JSON property `gatewayAddress`
        # @return [String]
        attr_accessor :gateway_address
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # The range of internal addresses that are owned by this subnetwork. Provide
        # this property when you create the subnetwork. For example, 10.0.0.0/8 or 100.
        # 64.0.0/10. Ranges must be unique and non-overlapping within a network. Only
        # IPv4 is supported. This field is set at resource creation time. This may be a
        # RFC 1918 IP range, or a privately routed, non-RFC 1918 IP range, not belonging
        # to Google. The range can be expanded after creation using expandIpCidrRange.
        # Corresponds to the JSON property `ipCidrRange`
        # @return [String]
        attr_accessor :ip_cidr_range
      
        # The access type of IPv6 address this subnet holds. It's immutable and can only
        # be specified during creation or the first time the subnet is updated into
        # IPV4_IPV6 dual stack. If the ipv6_type is EXTERNAL then this subnet cannot
        # enable direct path.
        # Corresponds to the JSON property `ipv6AccessType`
        # @return [String]
        attr_accessor :ipv6_access_type
      
        # [Output Only] The range of internal IPv6 addresses that are owned by this
        # subnetwork.
        # Corresponds to the JSON property `ipv6CidrRange`
        # @return [String]
        attr_accessor :ipv6_cidr_range
      
        # [Output Only] Type of the resource. Always compute#subnetwork for Subnetwork
        # resources.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # The available logging options for this subnetwork.
        # Corresponds to the JSON property `logConfig`
        # @return [Google::Apis::ComputeAlpha::SubnetworkLogConfig]
        attr_accessor :log_config
      
        # Can only be specified if VPC flow logging for this subnetwork is enabled.
        # Configures whether metadata fields should be added to the reported VPC flow
        # logs. Options are INCLUDE_ALL_METADATA, EXCLUDE_ALL_METADATA, and
        # CUSTOM_METADATA. Default is INCLUDE_ALL_METADATA.
        # Corresponds to the JSON property `metadata`
        # @return [String]
        attr_accessor :metadata
      
        # The name of the resource, provided by the client when initially creating the
        # resource. The name must be 1-63 characters long, and comply with RFC1035.
        # Specifically, the name must be 1-63 characters long and match the regular
        # expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the first character must
        # be a lowercase letter, and all following characters must be a dash, lowercase
        # letter, or digit, except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # The URL of the network to which this subnetwork belongs, provided by the
        # client when initially creating the subnetwork. Only networks that are in the
        # distributed mode can have subnetworks. This field can be set only at resource
        # creation time.
        # Corresponds to the JSON property `network`
        # @return [String]
        attr_accessor :network
      
        # Whether the VMs in this subnet can access Google services without assigned
        # external IP addresses. This field can be both set at resource creation time
        # and updated using setPrivateIpGoogleAccess.
        # Corresponds to the JSON property `privateIpGoogleAccess`
        # @return [Boolean]
        attr_accessor :private_ip_google_access
        alias_method :private_ip_google_access?, :private_ip_google_access
      
        # The private IPv6 google access type for the VMs in this subnet. This is an
        # expanded field of enablePrivateV6Access. If both fields are set,
        # privateIpv6GoogleAccess will take priority.
        # This field can be both set at resource creation time and updated using patch.
        # Corresponds to the JSON property `privateIpv6GoogleAccess`
        # @return [String]
        attr_accessor :private_ipv6_google_access
      
        # Deprecated in favor of enable PrivateIpv6GoogleAccess on instance directly.
        # The service accounts can be used to selectively turn on Private IPv6 Google
        # Access only on the VMs primary service account matching the value. This value
        # only takes effect when PrivateIpv6GoogleAccess is
        # ENABLE_OUTBOUND_VM_ACCESS_TO_GOOGLE_FOR_SERVICE_ACCOUNTS or
        # ENABLE_BIDIRECTIONAL_ACCESS_TO_GOOGLE_FOR_SERVICE_ACCOUNTS.
        # Corresponds to the JSON property `privateIpv6GoogleAccessServiceAccounts`
        # @return [Array<String>]
        attr_accessor :private_ipv6_google_access_service_accounts
      
        # The purpose of the resource. This field can be either PRIVATE_RFC_1918 or
        # INTERNAL_HTTPS_LOAD_BALANCER. A subnetwork with purpose set to
        # INTERNAL_HTTPS_LOAD_BALANCER is a user-created subnetwork that is reserved for
        # Internal HTTP(S) Load Balancing. If unspecified, the purpose defaults to
        # PRIVATE_RFC_1918. The enableFlowLogs field isn't supported with the purpose
        # field set to INTERNAL_HTTPS_LOAD_BALANCER.
        # Corresponds to the JSON property `purpose`
        # @return [String]
        attr_accessor :purpose
      
        # URL of the region where the Subnetwork resides. This field can be set only at
        # resource creation time.
        # Corresponds to the JSON property `region`
        # @return [String]
        attr_accessor :region
      
        # The role of subnetwork. Currently, this field is only used when purpose =
        # INTERNAL_HTTPS_LOAD_BALANCER. The value can be set to ACTIVE or BACKUP. An
        # ACTIVE subnetwork is one that is currently being used for Internal HTTP(S)
        # Load Balancing. A BACKUP subnetwork is one that is ready to be promoted to
        # ACTIVE or is currently draining. This field can be updated with a patch
        # request.
        # Corresponds to the JSON property `role`
        # @return [String]
        attr_accessor :role
      
        # An array of configurations for secondary IP ranges for VM instances contained
        # in this subnetwork. The primary IP of such VM must belong to the primary
        # ipCidrRange of the subnetwork. The alias IPs may belong to either primary or
        # secondary ranges. This field can be updated with a patch request.
        # Corresponds to the JSON property `secondaryIpRanges`
        # @return [Array<Google::Apis::ComputeAlpha::SubnetworkSecondaryRange>]
        attr_accessor :secondary_ip_ranges
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # The stack type for this subnet to identify whether the IPv6 feature is enabled
        # or not. If not specified IPV4_ONLY will be used.
        # This field can be both set at resource creation time and updated using patch.
        # Corresponds to the JSON property `stackType`
        # @return [String]
        attr_accessor :stack_type
      
        # [Output Only] The state of the subnetwork, which can be one of the following
        # values: READY: Subnetwork is created and ready to use DRAINING: only
        # applicable to subnetworks that have the purpose set to
        # INTERNAL_HTTPS_LOAD_BALANCER and indicates that connections to the load
        # balancer are being drained. A subnetwork that is draining cannot be used or
        # modified until it reaches a status of READY CREATING: Subnetwork is
        # provisioning DELETING: Subnetwork is being deleted UPDATING: Subnetwork is
        # being updated
        # Corresponds to the JSON property `state`
        # @return [String]
        attr_accessor :state
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @aggregation_interval = args[:aggregation_interval] if args.key?(:aggregation_interval)
          @allow_subnet_cidr_routes_overlap = args[:allow_subnet_cidr_routes_overlap] if args.key?(:allow_subnet_cidr_routes_overlap)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @enable_flow_logs = args[:enable_flow_logs] if args.key?(:enable_flow_logs)
          @enable_private_v6_access = args[:enable_private_v6_access] if args.key?(:enable_private_v6_access)
          @external_ipv6_prefix = args[:external_ipv6_prefix] if args.key?(:external_ipv6_prefix)
          @fingerprint = args[:fingerprint] if args.key?(:fingerprint)
          @flow_sampling = args[:flow_sampling] if args.key?(:flow_sampling)
          @gateway_address = args[:gateway_address] if args.key?(:gateway_address)
          @id = args[:id] if args.key?(:id)
          @ip_cidr_range = args[:ip_cidr_range] if args.key?(:ip_cidr_range)
          @ipv6_access_type = args[:ipv6_access_type] if args.key?(:ipv6_access_type)
          @ipv6_cidr_range = args[:ipv6_cidr_range] if args.key?(:ipv6_cidr_range)
          @kind = args[:kind] if args.key?(:kind)
          @log_config = args[:log_config] if args.key?(:log_config)
          @metadata = args[:metadata] if args.key?(:metadata)
          @name = args[:name] if args.key?(:name)
          @network = args[:network] if args.key?(:network)
          @private_ip_google_access = args[:private_ip_google_access] if args.key?(:private_ip_google_access)
          @private_ipv6_google_access = args[:private_ipv6_google_access] if args.key?(:private_ipv6_google_access)
          @private_ipv6_google_access_service_accounts = args[:private_ipv6_google_access_service_accounts] if args.key?(:private_ipv6_google_access_service_accounts)
          @purpose = args[:purpose] if args.key?(:purpose)
          @region = args[:region] if args.key?(:region)
          @role = args[:role] if args.key?(:role)
          @secondary_ip_ranges = args[:secondary_ip_ranges] if args.key?(:secondary_ip_ranges)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @stack_type = args[:stack_type] if args.key?(:stack_type)
          @state = args[:state] if args.key?(:state)
        end
      end
      
      # 
      class SubnetworkAggregatedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of SubnetworksScopedList resources.
        # Corresponds to the JSON property `items`
        # @return [Hash<String,Google::Apis::ComputeAlpha::SubnetworksScopedList>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#subnetworkAggregatedList for
        # aggregated lists of subnetworks.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Unreachable resources.
        # Corresponds to the JSON property `unreachables`
        # @return [Array<String>]
        attr_accessor :unreachables
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::SubnetworkAggregatedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @unreachables = args[:unreachables] if args.key?(:unreachables)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::SubnetworkAggregatedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Contains a list of Subnetwork resources.
      class SubnetworkList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of Subnetwork resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::Subnetwork>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#subnetworkList for lists of
        # subnetworks.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::SubnetworkList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::SubnetworkList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # The available logging options for this subnetwork.
      class SubnetworkLogConfig
        include Google::Apis::Core::Hashable
      
        # Can only be specified if VPC flow logging for this subnetwork is enabled.
        # Toggles the aggregation interval for collecting flow logs. Increasing the
        # interval time will reduce the amount of generated flow logs for long lasting
        # connections. Default is an interval of 5 seconds per connection.
        # Corresponds to the JSON property `aggregationInterval`
        # @return [String]
        attr_accessor :aggregation_interval
      
        # Whether to enable flow logging for this subnetwork. If this field is not
        # explicitly set, it will not appear in get listings. If not set the default
        # behavior is to disable flow logging.
        # Corresponds to the JSON property `enable`
        # @return [Boolean]
        attr_accessor :enable
        alias_method :enable?, :enable
      
        # Can only be specified if VPC flow logs for this subnetwork is enabled. Export
        # filter used to define which VPC flow logs should be logged.
        # Corresponds to the JSON property `filterExpr`
        # @return [String]
        attr_accessor :filter_expr
      
        # Can only be specified if VPC flow logging for this subnetwork is enabled. The
        # value of the field must be in [0, 1]. Set the sampling rate of VPC flow logs
        # within the subnetwork where 1.0 means all collected logs are reported and 0.0
        # means no logs are reported. Default is 0.5, which means half of all collected
        # logs are reported.
        # Corresponds to the JSON property `flowSampling`
        # @return [Float]
        attr_accessor :flow_sampling
      
        # Can only be specified if VPC flow logs for this subnetwork is enabled.
        # Configures whether all, none or a subset of metadata fields should be added to
        # the reported VPC flow logs. Default is INCLUDE_ALL_METADATA.
        # Corresponds to the JSON property `metadata`
        # @return [String]
        attr_accessor :metadata
      
        # Can only be specified if VPC flow logs for this subnetwork is enabled and "
        # metadata" was set to CUSTOM_METADATA.
        # Corresponds to the JSON property `metadataFields`
        # @return [Array<String>]
        attr_accessor :metadata_fields
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @aggregation_interval = args[:aggregation_interval] if args.key?(:aggregation_interval)
          @enable = args[:enable] if args.key?(:enable)
          @filter_expr = args[:filter_expr] if args.key?(:filter_expr)
          @flow_sampling = args[:flow_sampling] if args.key?(:flow_sampling)
          @metadata = args[:metadata] if args.key?(:metadata)
          @metadata_fields = args[:metadata_fields] if args.key?(:metadata_fields)
        end
      end
      
      # Represents a secondary IP range of a subnetwork.
      class SubnetworkSecondaryRange
        include Google::Apis::Core::Hashable
      
        # The range of IP addresses belonging to this subnetwork secondary range.
        # Provide this property when you create the subnetwork. Ranges must be unique
        # and non-overlapping with all primary and secondary IP ranges within a network.
        # Only IPv4 is supported. This may be a RFC 1918 IP range, or a privately, non-
        # RFC 1918 IP range, not belonging to Google.
        # Corresponds to the JSON property `ipCidrRange`
        # @return [String]
        attr_accessor :ip_cidr_range
      
        # The name associated with this subnetwork secondary range, used when adding an
        # alias IP range to a VM instance. The name must be 1-63 characters long, and
        # comply with RFC1035. The name must be unique within the subnetwork.
        # Corresponds to the JSON property `rangeName`
        # @return [String]
        attr_accessor :range_name
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @ip_cidr_range = args[:ip_cidr_range] if args.key?(:ip_cidr_range)
          @range_name = args[:range_name] if args.key?(:range_name)
        end
      end
      
      # 
      class SubnetworksExpandIpCidrRangeRequest
        include Google::Apis::Core::Hashable
      
        # The IP (in CIDR format or netmask) of internal addresses that are legal on
        # this Subnetwork. This range should be disjoint from other subnetworks within
        # this network. This range can only be larger than (i.e. a superset of) the
        # range previously defined before the update.
        # Corresponds to the JSON property `ipCidrRange`
        # @return [String]
        attr_accessor :ip_cidr_range
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @ip_cidr_range = args[:ip_cidr_range] if args.key?(:ip_cidr_range)
        end
      end
      
      # 
      class SubnetworksScopedList
        include Google::Apis::Core::Hashable
      
        # A list of subnetworks contained in this scope.
        # Corresponds to the JSON property `subnetworks`
        # @return [Array<Google::Apis::ComputeAlpha::Subnetwork>]
        attr_accessor :subnetworks
      
        # An informational warning that appears when the list of addresses is empty.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::SubnetworksScopedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @subnetworks = args[:subnetworks] if args.key?(:subnetworks)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # An informational warning that appears when the list of addresses is empty.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::SubnetworksScopedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class SubnetworksSetPrivateIpGoogleAccessRequest
        include Google::Apis::Core::Hashable
      
        # 
        # Corresponds to the JSON property `privateIpGoogleAccess`
        # @return [Boolean]
        attr_accessor :private_ip_google_access
        alias_method :private_ip_google_access?, :private_ip_google_access
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @private_ip_google_access = args[:private_ip_google_access] if args.key?(:private_ip_google_access)
        end
      end
      
      # Subsetting options to make L4 ILB support any number of backend instances
      class Subsetting
        include Google::Apis::Core::Hashable
      
        # 
        # Corresponds to the JSON property `policy`
        # @return [String]
        attr_accessor :policy
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @policy = args[:policy] if args.key?(:policy)
        end
      end
      
      # 
      class TcpHealthCheck
        include Google::Apis::Core::Hashable
      
        # The TCP port number for the health check request. The default value is 80.
        # Valid values are 1 through 65535.
        # Corresponds to the JSON property `port`
        # @return [Fixnum]
        attr_accessor :port
      
        # Port name as defined in InstanceGroup#NamedPort#name. If both port and
        # port_name are defined, port takes precedence.
        # Corresponds to the JSON property `portName`
        # @return [String]
        attr_accessor :port_name
      
        # Specifies how port is selected for health checking, can be one of following
        # values:
        # USE_FIXED_PORT: The port number in port is used for health checking.
        # USE_NAMED_PORT: The portName is used for health checking.
        # USE_SERVING_PORT: For NetworkEndpointGroup, the port specified for each
        # network endpoint is used for health checking. For other backends, the port or
        # named port specified in the Backend Service is used for health checking.
        # If not specified, TCP health check follows behavior specified in port and
        # portName fields.
        # Corresponds to the JSON property `portSpecification`
        # @return [String]
        attr_accessor :port_specification
      
        # Specifies the type of proxy header to append before sending data to the
        # backend, either NONE or PROXY_V1. The default is NONE.
        # Corresponds to the JSON property `proxyHeader`
        # @return [String]
        attr_accessor :proxy_header
      
        # The application data to send once the TCP connection has been established (
        # default value is empty). If both request and response are empty, the
        # connection establishment alone will indicate health. The request data can only
        # be ASCII.
        # Corresponds to the JSON property `request`
        # @return [String]
        attr_accessor :request
      
        # The bytes to match against the beginning of the response data. If left empty (
        # the default value), any response will indicate health. The response data can
        # only be ASCII.
        # Corresponds to the JSON property `response`
        # @return [String]
        attr_accessor :response
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @port = args[:port] if args.key?(:port)
          @port_name = args[:port_name] if args.key?(:port_name)
          @port_specification = args[:port_specification] if args.key?(:port_specification)
          @proxy_header = args[:proxy_header] if args.key?(:proxy_header)
          @request = args[:request] if args.key?(:request)
          @response = args[:response] if args.key?(:response)
        end
      end
      
      # A set of instance tags.
      class Tags
        include Google::Apis::Core::Hashable
      
        # Specifies a fingerprint for this request, which is essentially a hash of the
        # tags' contents and used for optimistic locking. The fingerprint is initially
        # generated by Compute Engine and changes after every request to modify or
        # update tags. You must always provide an up-to-date fingerprint hash in order
        # to update or change tags.
        # To see the latest fingerprint, make get() request to the instance.
        # Corresponds to the JSON property `fingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :fingerprint
      
        # An array of tags. Each tag must be 1-63 characters long, and comply with
        # RFC1035.
        # Corresponds to the JSON property `items`
        # @return [Array<String>]
        attr_accessor :items
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @fingerprint = args[:fingerprint] if args.key?(:fingerprint)
          @items = args[:items] if args.key?(:items)
        end
      end
      
      # Represents a Target gRPC Proxy resource.
      # A target gRPC proxy is a component of load balancers intended for load
      # balancing gRPC traffic. Global forwarding rules reference a target gRPC proxy.
      # The Target gRPC Proxy references a URL map which specifies how traffic routes
      # to gRPC backend services. (== resource_for `$api_version`.targetGrpcProxies ==)
      class TargetGrpcProxy
        include Google::Apis::Core::Hashable
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # Fingerprint of this resource. A hash of the contents stored in this object.
        # This field is used in optimistic locking. This field will be ignored when
        # inserting a TargetGrpcProxy. An up-to-date fingerprint must be provided in
        # order to patch/update the TargetGrpcProxy; otherwise, the request will fail
        # with error 412 conditionNotMet. To see the latest fingerprint, make a get()
        # request to retrieve the TargetGrpcProxy.
        # Corresponds to the JSON property `fingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :fingerprint
      
        # [Output Only] The unique identifier for the resource type. The server
        # generates this identifier.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] Type of the resource. Always compute#targetGrpcProxy for target
        # grpc proxies.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # Name of the resource. Provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL with id for the resource.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # URL to the UrlMap resource that defines the mapping from URL to the
        # BackendService. The protocol field in the BackendService must be set to GRPC.
        # Corresponds to the JSON property `urlMap`
        # @return [String]
        attr_accessor :url_map
      
        # If true, indicates that the BackendServices referenced by the urlMap may be
        # accessed by gRPC applications without using a sidecar proxy. This will enable
        # configuration checks on urlMap and its referenced BackendServices to not allow
        # unsupported features. A gRPC application must use "xds:///" scheme in the
        # target URI of the service it is connecting to. If false, indicates that the
        # BackendServices referenced by the urlMap will be accessed by gRPC applications
        # via a sidecar proxy. In this case, a gRPC application must not use "xds:///"
        # scheme in the target URI of the service it is connecting to
        # Corresponds to the JSON property `validateForProxyless`
        # @return [Boolean]
        attr_accessor :validate_for_proxyless
        alias_method :validate_for_proxyless?, :validate_for_proxyless
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @fingerprint = args[:fingerprint] if args.key?(:fingerprint)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @name = args[:name] if args.key?(:name)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @url_map = args[:url_map] if args.key?(:url_map)
          @validate_for_proxyless = args[:validate_for_proxyless] if args.key?(:validate_for_proxyless)
        end
      end
      
      # 
      class TargetGrpcProxyList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of TargetGrpcProxy resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::TargetGrpcProxy>]
        attr_accessor :items
      
        # [Output Only] Type of the resource. Always compute#targetGrpcProxy for target
        # grpc proxies.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::TargetGrpcProxyList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::TargetGrpcProxyList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class TargetHttpProxiesScopedList
        include Google::Apis::Core::Hashable
      
        # A list of TargetHttpProxies contained in this scope.
        # Corresponds to the JSON property `targetHttpProxies`
        # @return [Array<Google::Apis::ComputeAlpha::TargetHttpProxy>]
        attr_accessor :target_http_proxies
      
        # Informational warning which replaces the list of backend services when the
        # list is empty.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::TargetHttpProxiesScopedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @target_http_proxies = args[:target_http_proxies] if args.key?(:target_http_proxies)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # Informational warning which replaces the list of backend services when the
        # list is empty.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::TargetHttpProxiesScopedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Represents a Target HTTP Proxy resource.
      # Google Compute Engine has two Target HTTP Proxy resources:
      # * [Global](/compute/docs/reference/rest/`$api_version`/targetHttpProxies) * [
      # Regional](/compute/docs/reference/rest/`$api_version`/regionTargetHttpProxies)
      # A target HTTP proxy is a component of GCP HTTP load balancers.
      # * targetHttpProxies are used by external HTTP load balancers and Traffic
      # Director. * regionTargetHttpProxies are used by internal HTTP load balancers.
      # Forwarding rules reference a target HTTP proxy, and the target proxy then
      # references a URL map. For more information, read Using Target Proxies and
      # Forwarding rule concepts. (== resource_for `$api_version`.targetHttpProxies ==)
      # (== resource_for `$api_version`.regionTargetHttpProxies ==)
      class TargetHttpProxy
        include Google::Apis::Core::Hashable
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # Fingerprint of this resource. A hash of the contents stored in this object.
        # This field is used in optimistic locking. This field will be ignored when
        # inserting a TargetHttpProxy. An up-to-date fingerprint must be provided in
        # order to patch/update the TargetHttpProxy; otherwise, the request will fail
        # with error 412 conditionNotMet. To see the latest fingerprint, make a get()
        # request to retrieve the TargetHttpProxy.
        # Corresponds to the JSON property `fingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :fingerprint
      
        # URLs to networkservices.HttpFilter resources enabled for xDS clients using
        # this configuration. For example, https://networkservices.googleapis.com/
        # v1alpha1/projects/project/locations/locationhttpFilters/httpFilter Only
        # filters that handle outbound connection and stream events may be specified.
        # These filters work in conjunction with a default set of HTTP filters that may
        # already be configured by Traffic Director. Traffic Director will determine the
        # final location of these filters within xDS configuration based on the name of
        # the HTTP filter. If Traffic Director positions multiple filters at the same
        # location, those filters will be in the same order as specified in this list.
        # httpFilters only applies for loadbalancers with loadBalancingScheme set to
        # INTERNAL_SELF_MANAGED. See ForwardingRule for more details.
        # Corresponds to the JSON property `httpFilters`
        # @return [Array<String>]
        attr_accessor :http_filters
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] Type of resource. Always compute#targetHttpProxy for target HTTP
        # proxies.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # Name of the resource. Provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # This field only applies when the forwarding rule that references this target
        # proxy has a loadBalancingScheme set to INTERNAL_SELF_MANAGED.
        # When this field is set to true, Envoy proxies set up inbound traffic
        # interception and bind to the IP address and port specified in the forwarding
        # rule. This is generally useful when using Traffic Director to configure Envoy
        # as a gateway or middle proxy (in other words, not a sidecar proxy). The Envoy
        # proxy listens for inbound requests and handles requests when it receives them.
        # The default is false.
        # Corresponds to the JSON property `proxyBind`
        # @return [Boolean]
        attr_accessor :proxy_bind
        alias_method :proxy_bind?, :proxy_bind
      
        # [Output Only] URL of the region where the regional Target HTTP Proxy resides.
        # This field is not applicable to global Target HTTP Proxies.
        # Corresponds to the JSON property `region`
        # @return [String]
        attr_accessor :region
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # URL to the UrlMap resource that defines the mapping from URL to the
        # BackendService.
        # Corresponds to the JSON property `urlMap`
        # @return [String]
        attr_accessor :url_map
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @fingerprint = args[:fingerprint] if args.key?(:fingerprint)
          @http_filters = args[:http_filters] if args.key?(:http_filters)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @name = args[:name] if args.key?(:name)
          @proxy_bind = args[:proxy_bind] if args.key?(:proxy_bind)
          @region = args[:region] if args.key?(:region)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @url_map = args[:url_map] if args.key?(:url_map)
        end
      end
      
      # 
      class TargetHttpProxyAggregatedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of TargetHttpProxiesScopedList resources.
        # Corresponds to the JSON property `items`
        # @return [Hash<String,Google::Apis::ComputeAlpha::TargetHttpProxiesScopedList>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#targetHttpProxyAggregatedList
        # for lists of Target HTTP Proxies.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Unreachable resources.
        # Corresponds to the JSON property `unreachables`
        # @return [Array<String>]
        attr_accessor :unreachables
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::TargetHttpProxyAggregatedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @unreachables = args[:unreachables] if args.key?(:unreachables)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::TargetHttpProxyAggregatedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # A list of TargetHttpProxy resources.
      class TargetHttpProxyList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of TargetHttpProxy resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::TargetHttpProxy>]
        attr_accessor :items
      
        # Type of resource. Always compute#targetHttpProxyList for lists of target HTTP
        # proxies.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::TargetHttpProxyList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::TargetHttpProxyList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class TargetHttpsProxiesScopedList
        include Google::Apis::Core::Hashable
      
        # A list of TargetHttpsProxies contained in this scope.
        # Corresponds to the JSON property `targetHttpsProxies`
        # @return [Array<Google::Apis::ComputeAlpha::TargetHttpsProxy>]
        attr_accessor :target_https_proxies
      
        # Informational warning which replaces the list of backend services when the
        # list is empty.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::TargetHttpsProxiesScopedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @target_https_proxies = args[:target_https_proxies] if args.key?(:target_https_proxies)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # Informational warning which replaces the list of backend services when the
        # list is empty.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::TargetHttpsProxiesScopedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class TargetHttpsProxiesSetCertificateMapRequest
        include Google::Apis::Core::Hashable
      
        # URL of the Certificate Map to associate with this TargetHttpsProxy.
        # Corresponds to the JSON property `certificateMap`
        # @return [String]
        attr_accessor :certificate_map
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @certificate_map = args[:certificate_map] if args.key?(:certificate_map)
        end
      end
      
      # 
      class TargetHttpsProxiesSetQuicOverrideRequest
        include Google::Apis::Core::Hashable
      
        # QUIC policy for the TargetHttpsProxy resource.
        # Corresponds to the JSON property `quicOverride`
        # @return [String]
        attr_accessor :quic_override
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @quic_override = args[:quic_override] if args.key?(:quic_override)
        end
      end
      
      # 
      class TargetHttpsProxiesSetSslCertificatesRequest
        include Google::Apis::Core::Hashable
      
        # New set of SslCertificate resources to associate with this TargetHttpsProxy
        # resource. Currently exactly one SslCertificate resource must be specified.
        # Corresponds to the JSON property `sslCertificates`
        # @return [Array<String>]
        attr_accessor :ssl_certificates
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @ssl_certificates = args[:ssl_certificates] if args.key?(:ssl_certificates)
        end
      end
      
      # Represents a Target HTTPS Proxy resource.
      # Google Compute Engine has two Target HTTPS Proxy resources:
      # * [Global](/compute/docs/reference/rest/`$api_version`/targetHttpsProxies) * [
      # Regional](/compute/docs/reference/rest/`$api_version`/regionTargetHttpsProxies)
      # A target HTTPS proxy is a component of GCP HTTPS load balancers.
      # * targetHttpsProxies are used by external HTTPS load balancers. *
      # regionTargetHttpsProxies are used by internal HTTPS load balancers.
      # Forwarding rules reference a target HTTPS proxy, and the target proxy then
      # references a URL map. For more information, read Using Target Proxies and
      # Forwarding rule concepts. (== resource_for `$api_version`.targetHttpsProxies ==
      # ) (== resource_for `$api_version`.regionTargetHttpsProxies ==)
      class TargetHttpsProxy
        include Google::Apis::Core::Hashable
      
        # [Deprecated] Use serverTlsPolicy instead.
        # Corresponds to the JSON property `authentication`
        # @return [String]
        attr_accessor :authentication
      
        # [Deprecated] Use authorizationPolicy instead.
        # Corresponds to the JSON property `authorization`
        # @return [String]
        attr_accessor :authorization
      
        # Optional. A URL referring to a networksecurity.AuthorizationPolicy resource
        # that describes how the proxy should authorize inbound traffic. If left blank,
        # access will not be restricted by an authorization policy.
        # Refer to the AuthorizationPolicy resource for additional details.
        # authorizationPolicy only applies to a global TargetHttpsProxy attached to
        # globalForwardingRules with the loadBalancingScheme set to
        # INTERNAL_SELF_MANAGED.
        # Note: This field currently has no impact.
        # Corresponds to the JSON property `authorizationPolicy`
        # @return [String]
        attr_accessor :authorization_policy
      
        # URL of a certificate map that identifies a certificate map associated with the
        # given target proxy. This field can only be set for global target proxies. If
        # set, sslCertificates will be ignored.
        # Corresponds to the JSON property `certificateMap`
        # @return [String]
        attr_accessor :certificate_map
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # Fingerprint of this resource. A hash of the contents stored in this object.
        # This field is used in optimistic locking. This field will be ignored when
        # inserting a TargetHttpsProxy. An up-to-date fingerprint must be provided in
        # order to patch the TargetHttpsProxy; otherwise, the request will fail with
        # error 412 conditionNotMet. To see the latest fingerprint, make a get() request
        # to retrieve the TargetHttpsProxy.
        # Corresponds to the JSON property `fingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :fingerprint
      
        # URLs to networkservices.HttpFilter resources enabled for xDS clients using
        # this configuration. For example, https://networkservices.googleapis.com/beta/
        # projects/project/locations/locationhttpFilters/httpFilter Only filters that
        # handle outbound connection and stream events may be specified. These filters
        # work in conjunction with a default set of HTTP filters that may already be
        # configured by Traffic Director. Traffic Director will determine the final
        # location of these filters within xDS configuration based on the name of the
        # HTTP filter. If Traffic Director positions multiple filters at the same
        # location, those filters will be in the same order as specified in this list.
        # httpFilters only applies for loadbalancers with loadBalancingScheme set to
        # INTERNAL_SELF_MANAGED. See ForwardingRule for more details.
        # Corresponds to the JSON property `httpFilters`
        # @return [Array<String>]
        attr_accessor :http_filters
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] Type of resource. Always compute#targetHttpsProxy for target
        # HTTPS proxies.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # Name of the resource. Provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # This field only applies when the forwarding rule that references this target
        # proxy has a loadBalancingScheme set to INTERNAL_SELF_MANAGED.
        # When this field is set to true, Envoy proxies set up inbound traffic
        # interception and bind to the IP address and port specified in the forwarding
        # rule. This is generally useful when using Traffic Director to configure Envoy
        # as a gateway or middle proxy (in other words, not a sidecar proxy). The Envoy
        # proxy listens for inbound requests and handles requests when it receives them.
        # The default is false.
        # Corresponds to the JSON property `proxyBind`
        # @return [Boolean]
        attr_accessor :proxy_bind
        alias_method :proxy_bind?, :proxy_bind
      
        # Specifies the QUIC override policy for this TargetHttpsProxy resource. This
        # setting determines whether the load balancer attempts to negotiate QUIC with
        # clients. You can specify NONE, ENABLE, or DISABLE.
        # - When quic-override is set to NONE, Google manages whether QUIC is used.
        # - When quic-override is set to ENABLE, the load balancer uses QUIC when
        # possible.
        # - When quic-override is set to DISABLE, the load balancer doesn't use QUIC.
        # - If the quic-override flag is not specified, NONE is implied.
        # -
        # Corresponds to the JSON property `quicOverride`
        # @return [String]
        attr_accessor :quic_override
      
        # [Output Only] URL of the region where the regional TargetHttpsProxy resides.
        # This field is not applicable to global TargetHttpsProxies.
        # Corresponds to the JSON property `region`
        # @return [String]
        attr_accessor :region
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # Optional. A URL referring to a networksecurity.ServerTlsPolicy resource that
        # describes how the proxy should authenticate inbound traffic.
        # serverTlsPolicy only applies to a global TargetHttpsProxy attached to
        # globalForwardingRules with the loadBalancingScheme set to
        # INTERNAL_SELF_MANAGED.
        # If left blank, communications are not encrypted.
        # Note: This field currently has no impact.
        # Corresponds to the JSON property `serverTlsPolicy`
        # @return [String]
        attr_accessor :server_tls_policy
      
        # URLs to SslCertificate resources that are used to authenticate connections
        # between users and the load balancer. At least one SSL certificate must be
        # specified. Currently, you may specify up to 15 SSL certificates.
        # Corresponds to the JSON property `sslCertificates`
        # @return [Array<String>]
        attr_accessor :ssl_certificates
      
        # URL of SslPolicy resource that will be associated with the TargetHttpsProxy
        # resource. If not set, the TargetHttpsProxy resource has no SSL policy
        # configured.
        # Corresponds to the JSON property `sslPolicy`
        # @return [String]
        attr_accessor :ssl_policy
      
        # A fully-qualified or valid partial URL to the UrlMap resource that defines the
        # mapping from URL to the BackendService. For example, the following are all
        # valid URLs for specifying a URL map:
        # - https://www.googleapis.compute/v1/projects/project/global/urlMaps/url-map
        # - projects/project/global/urlMaps/url-map
        # - global/urlMaps/url-map
        # Corresponds to the JSON property `urlMap`
        # @return [String]
        attr_accessor :url_map
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @authentication = args[:authentication] if args.key?(:authentication)
          @authorization = args[:authorization] if args.key?(:authorization)
          @authorization_policy = args[:authorization_policy] if args.key?(:authorization_policy)
          @certificate_map = args[:certificate_map] if args.key?(:certificate_map)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @fingerprint = args[:fingerprint] if args.key?(:fingerprint)
          @http_filters = args[:http_filters] if args.key?(:http_filters)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @name = args[:name] if args.key?(:name)
          @proxy_bind = args[:proxy_bind] if args.key?(:proxy_bind)
          @quic_override = args[:quic_override] if args.key?(:quic_override)
          @region = args[:region] if args.key?(:region)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @server_tls_policy = args[:server_tls_policy] if args.key?(:server_tls_policy)
          @ssl_certificates = args[:ssl_certificates] if args.key?(:ssl_certificates)
          @ssl_policy = args[:ssl_policy] if args.key?(:ssl_policy)
          @url_map = args[:url_map] if args.key?(:url_map)
        end
      end
      
      # 
      class TargetHttpsProxyAggregatedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of TargetHttpsProxiesScopedList resources.
        # Corresponds to the JSON property `items`
        # @return [Hash<String,Google::Apis::ComputeAlpha::TargetHttpsProxiesScopedList>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#targetHttpsProxyAggregatedList
        # for lists of Target HTTP Proxies.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Unreachable resources.
        # Corresponds to the JSON property `unreachables`
        # @return [Array<String>]
        attr_accessor :unreachables
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::TargetHttpsProxyAggregatedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @unreachables = args[:unreachables] if args.key?(:unreachables)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::TargetHttpsProxyAggregatedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Contains a list of TargetHttpsProxy resources.
      class TargetHttpsProxyList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of TargetHttpsProxy resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::TargetHttpsProxy>]
        attr_accessor :items
      
        # Type of resource. Always compute#targetHttpsProxyList for lists of target
        # HTTPS proxies.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::TargetHttpsProxyList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::TargetHttpsProxyList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Represents a Target Instance resource.
      # You can use a target instance to handle traffic for one or more forwarding
      # rules, which is ideal for forwarding protocol traffic that is managed by a
      # single source. For example, ESP, AH, TCP, or UDP. For more information, read
      # Target instances. (== resource_for `$api_version`.targetInstances ==)
      class TargetInstance
        include Google::Apis::Core::Hashable
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # A URL to the virtual machine instance that handles traffic for this target
        # instance. When creating a target instance, you can provide the fully-qualified
        # URL or a valid partial URL to the desired virtual machine. For example, the
        # following are all valid URLs:
        # - https://www.googleapis.com/compute/v1/projects/project/zones/zone/instances/
        # instance
        # - projects/project/zones/zone/instances/instance
        # - zones/zone/instances/instance
        # Corresponds to the JSON property `instance`
        # @return [String]
        attr_accessor :instance
      
        # [Output Only] The type of the resource. Always compute#targetInstance for
        # target instances.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # Name of the resource. Provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # NAT option controlling how IPs are NAT'ed to the instance. Currently only
        # NO_NAT (default value) is supported.
        # Corresponds to the JSON property `natPolicy`
        # @return [String]
        attr_accessor :nat_policy
      
        # The URL of the network this target instance uses to forward traffic. If not
        # specified, the traffic will be forwarded to the network that the default
        # network interface belongs to.
        # Corresponds to the JSON property `network`
        # @return [String]
        attr_accessor :network
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # [Output Only] URL of the zone where the target instance resides. You must
        # specify this field as part of the HTTP request URL. It is not settable as a
        # field in the request body.
        # Corresponds to the JSON property `zone`
        # @return [String]
        attr_accessor :zone
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @id = args[:id] if args.key?(:id)
          @instance = args[:instance] if args.key?(:instance)
          @kind = args[:kind] if args.key?(:kind)
          @name = args[:name] if args.key?(:name)
          @nat_policy = args[:nat_policy] if args.key?(:nat_policy)
          @network = args[:network] if args.key?(:network)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @zone = args[:zone] if args.key?(:zone)
        end
      end
      
      # 
      class TargetInstanceAggregatedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of TargetInstance resources.
        # Corresponds to the JSON property `items`
        # @return [Hash<String,Google::Apis::ComputeAlpha::TargetInstancesScopedList>]
        attr_accessor :items
      
        # Type of resource.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Unreachable resources.
        # Corresponds to the JSON property `unreachables`
        # @return [Array<String>]
        attr_accessor :unreachables
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::TargetInstanceAggregatedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @unreachables = args[:unreachables] if args.key?(:unreachables)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::TargetInstanceAggregatedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Contains a list of TargetInstance resources.
      class TargetInstanceList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of TargetInstance resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::TargetInstance>]
        attr_accessor :items
      
        # Type of resource.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::TargetInstanceList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::TargetInstanceList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class TargetInstancesScopedList
        include Google::Apis::Core::Hashable
      
        # A list of target instances contained in this scope.
        # Corresponds to the JSON property `targetInstances`
        # @return [Array<Google::Apis::ComputeAlpha::TargetInstance>]
        attr_accessor :target_instances
      
        # Informational warning which replaces the list of addresses when the list is
        # empty.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::TargetInstancesScopedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @target_instances = args[:target_instances] if args.key?(:target_instances)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # Informational warning which replaces the list of addresses when the list is
        # empty.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::TargetInstancesScopedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Represents a Target Pool resource.
      # Target pools are used for network TCP/UDP load balancing. A target pool
      # references member instances, an associated legacy HttpHealthCheck resource,
      # and, optionally, a backup target pool. For more information, read Using target
      # pools. (== resource_for `$api_version`.targetPools ==)
      class TargetPool
        include Google::Apis::Core::Hashable
      
        # The server-defined URL for the resource. This field is applicable only when
        # the containing target pool is serving a forwarding rule as the primary pool,
        # and its failoverRatio field is properly set to a value between [0, 1].
        # backupPool and failoverRatio together define the fallback behavior of the
        # primary target pool: if the ratio of the healthy instances in the primary pool
        # is at or below failoverRatio, traffic arriving at the load-balanced IP will be
        # directed to the backup pool.
        # In case where failoverRatio and backupPool are not set, or all the instances
        # in the backup pool are unhealthy, the traffic will be directed back to the
        # primary pool in the "force" mode, where traffic will be spread to the healthy
        # instances with the best effort, or to all instances when no instance is
        # healthy.
        # Corresponds to the JSON property `backupPool`
        # @return [String]
        attr_accessor :backup_pool
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # This field is applicable only when the containing target pool is serving a
        # forwarding rule as the primary pool (i.e., not as a backup pool to some other
        # target pool). The value of the field must be in [0, 1].
        # If set, backupPool must also be set. They together define the fallback
        # behavior of the primary target pool: if the ratio of the healthy instances in
        # the primary pool is at or below this number, traffic arriving at the load-
        # balanced IP will be directed to the backup pool.
        # In case where failoverRatio is not set or all the instances in the backup pool
        # are unhealthy, the traffic will be directed back to the primary pool in the "
        # force" mode, where traffic will be spread to the healthy instances with the
        # best effort, or to all instances when no instance is healthy.
        # Corresponds to the JSON property `failoverRatio`
        # @return [Float]
        attr_accessor :failover_ratio
      
        # The URL of the HttpHealthCheck resource. A member instance in this pool is
        # considered healthy if and only if the health checks pass. An empty list means
        # all member instances will be considered healthy at all times. Only legacy
        # HttpHealthChecks are supported. Only one health check may be specified.
        # Corresponds to the JSON property `healthChecks`
        # @return [Array<String>]
        attr_accessor :health_checks
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # A list of resource URLs to the virtual machine instances serving this pool.
        # They must live in zones contained in the same region as this pool.
        # Corresponds to the JSON property `instances`
        # @return [Array<String>]
        attr_accessor :instances
      
        # [Output Only] Type of the resource. Always compute#targetPool for target pools.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # Name of the resource. Provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # [Output Only] URL of the region where the target pool resides.
        # Corresponds to the JSON property `region`
        # @return [String]
        attr_accessor :region
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Server-defined URL for this resource with the resource id.
        # Corresponds to the JSON property `selfLinkWithId`
        # @return [String]
        attr_accessor :self_link_with_id
      
        # Session affinity option, must be one of the following values:
        # NONE: Connections from the same client IP may go to any instance in the pool.
        # CLIENT_IP: Connections from the same client IP will go to the same instance in
        # the pool while that instance remains healthy.
        # CLIENT_IP_PROTO: Connections from the same client IP with the same IP protocol
        # will go to the same instance in the pool while that instance remains healthy.
        # Corresponds to the JSON property `sessionAffinity`
        # @return [String]
        attr_accessor :session_affinity
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @backup_pool = args[:backup_pool] if args.key?(:backup_pool)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @failover_ratio = args[:failover_ratio] if args.key?(:failover_ratio)
          @health_checks = args[:health_checks] if args.key?(:health_checks)
          @id = args[:id] if args.key?(:id)
          @instances = args[:instances] if args.key?(:instances)
          @kind = args[:kind] if args.key?(:kind)
          @name = args[:name] if args.key?(:name)
          @region = args[:region] if args.key?(:region)
          @self_link = args[:self_link] if args.key?(:self_link)
          @self_link_with_id = args[:self_link_with_id] if args.key?(:self_link_with_id)
          @session_affinity = args[:session_affinity] if args.key?(:session_affinity)
        end
      end
      
      # 
      class TargetPoolAggregatedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of TargetPool resources.
        # Corresponds to the JSON property `items`
        # @return [Hash<String,Google::Apis::ComputeAlpha::TargetPoolsScopedList>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#targetPoolAggregatedList for
        # aggregated lists of target pools.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Unreachable resources.
        # Corresponds to the JSON property `unreachables`
        # @return [Array<String>]
        attr_accessor :unreachables
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::TargetPoolAggregatedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @unreachables = args[:unreachables] if args.key?(:unreachables)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::TargetPoolAggregatedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class TargetPoolInstanceHealth
        include Google::Apis::Core::Hashable
      
        # 
        # Corresponds to the JSON property `healthStatus`
        # @return [Array<Google::Apis::ComputeAlpha::HealthStatus>]
        attr_accessor :health_status
      
        # [Output Only] Type of resource. Always compute#targetPoolInstanceHealth when
        # checking the health of an instance.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @health_status = args[:health_status] if args.key?(:health_status)
          @kind = args[:kind] if args.key?(:kind)
        end
      end
      
      # Contains a list of TargetPool resources.
      class TargetPoolList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of TargetPool resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::TargetPool>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#targetPoolList for lists of
        # target pools.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::TargetPoolList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::TargetPoolList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class TargetPoolsAddHealthCheckRequest
        include Google::Apis::Core::Hashable
      
        # The HttpHealthCheck to add to the target pool.
        # Corresponds to the JSON property `healthChecks`
        # @return [Array<Google::Apis::ComputeAlpha::HealthCheckReference>]
        attr_accessor :health_checks
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @health_checks = args[:health_checks] if args.key?(:health_checks)
        end
      end
      
      # 
      class TargetPoolsAddInstanceRequest
        include Google::Apis::Core::Hashable
      
        # A full or partial URL to an instance to add to this target pool. This can be a
        # full or partial URL. For example, the following are valid URLs:
        # - https://www.googleapis.com/compute/v1/projects/project-id/zones/zone/
        # instances/instance-name
        # - projects/project-id/zones/zone/instances/instance-name
        # - zones/zone/instances/instance-name
        # Corresponds to the JSON property `instances`
        # @return [Array<Google::Apis::ComputeAlpha::InstanceReference>]
        attr_accessor :instances
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @instances = args[:instances] if args.key?(:instances)
        end
      end
      
      # 
      class TargetPoolsRemoveHealthCheckRequest
        include Google::Apis::Core::Hashable
      
        # Health check URL to be removed. This can be a full or valid partial URL. For
        # example, the following are valid URLs:
        # - https://www.googleapis.com/compute/beta/projects/project/global/
        # httpHealthChecks/health-check
        # - projects/project/global/httpHealthChecks/health-check
        # - global/httpHealthChecks/health-check
        # Corresponds to the JSON property `healthChecks`
        # @return [Array<Google::Apis::ComputeAlpha::HealthCheckReference>]
        attr_accessor :health_checks
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @health_checks = args[:health_checks] if args.key?(:health_checks)
        end
      end
      
      # 
      class TargetPoolsRemoveInstanceRequest
        include Google::Apis::Core::Hashable
      
        # URLs of the instances to be removed from target pool.
        # Corresponds to the JSON property `instances`
        # @return [Array<Google::Apis::ComputeAlpha::InstanceReference>]
        attr_accessor :instances
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @instances = args[:instances] if args.key?(:instances)
        end
      end
      
      # 
      class TargetPoolsScopedList
        include Google::Apis::Core::Hashable
      
        # A list of target pools contained in this scope.
        # Corresponds to the JSON property `targetPools`
        # @return [Array<Google::Apis::ComputeAlpha::TargetPool>]
        attr_accessor :target_pools
      
        # Informational warning which replaces the list of addresses when the list is
        # empty.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::TargetPoolsScopedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @target_pools = args[:target_pools] if args.key?(:target_pools)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # Informational warning which replaces the list of addresses when the list is
        # empty.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::TargetPoolsScopedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class TargetReference
        include Google::Apis::Core::Hashable
      
        # 
        # Corresponds to the JSON property `target`
        # @return [String]
        attr_accessor :target
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @target = args[:target] if args.key?(:target)
        end
      end
      
      # 
      class TargetSslProxiesSetBackendServiceRequest
        include Google::Apis::Core::Hashable
      
        # The URL of the new BackendService resource for the targetSslProxy.
        # Corresponds to the JSON property `service`
        # @return [String]
        attr_accessor :service
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @service = args[:service] if args.key?(:service)
        end
      end
      
      # 
      class TargetSslProxiesSetCertificateMapRequest
        include Google::Apis::Core::Hashable
      
        # URL of the Certificate Map to associate with this TargetSslProxy.
        # Corresponds to the JSON property `certificateMap`
        # @return [String]
        attr_accessor :certificate_map
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @certificate_map = args[:certificate_map] if args.key?(:certificate_map)
        end
      end
      
      # 
      class TargetSslProxiesSetProxyHeaderRequest
        include Google::Apis::Core::Hashable
      
        # The new type of proxy header to append before sending data to the backend.
        # NONE or PROXY_V1 are allowed.
        # Corresponds to the JSON property `proxyHeader`
        # @return [String]
        attr_accessor :proxy_header
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @proxy_header = args[:proxy_header] if args.key?(:proxy_header)
        end
      end
      
      # 
      class TargetSslProxiesSetSslCertificatesRequest
        include Google::Apis::Core::Hashable
      
        # New set of URLs to SslCertificate resources to associate with this
        # TargetSslProxy. Currently exactly one ssl certificate must be specified.
        # Corresponds to the JSON property `sslCertificates`
        # @return [Array<String>]
        attr_accessor :ssl_certificates
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @ssl_certificates = args[:ssl_certificates] if args.key?(:ssl_certificates)
        end
      end
      
      # Represents a Target SSL Proxy resource.
      # A target SSL proxy is a component of a SSL Proxy load balancer. Global
      # forwarding rules reference a target SSL proxy, and the target proxy then
      # references an external backend service. For more information, read Using
      # Target Proxies. (== resource_for `$api_version`.targetSslProxies ==)
      class TargetSslProxy
        include Google::Apis::Core::Hashable
      
        # URL of a certificate map that identifies a certificate map associated with the
        # given target proxy. This field can only be set for global target proxies. If
        # set, sslCertificates will be ignored.
        # Corresponds to the JSON property `certificateMap`
        # @return [String]
        attr_accessor :certificate_map
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] Type of the resource. Always compute#targetSslProxy for target
        # SSL proxies.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # Name of the resource. Provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # Specifies the type of proxy header to append before sending data to the
        # backend, either NONE or PROXY_V1. The default is NONE.
        # Corresponds to the JSON property `proxyHeader`
        # @return [String]
        attr_accessor :proxy_header
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # URL to the BackendService resource.
        # Corresponds to the JSON property `service`
        # @return [String]
        attr_accessor :service
      
        # URLs to SslCertificate resources that are used to authenticate connections to
        # Backends. At least one SSL certificate must be specified. Currently, you may
        # specify up to 15 SSL certificates.
        # Corresponds to the JSON property `sslCertificates`
        # @return [Array<String>]
        attr_accessor :ssl_certificates
      
        # URL of SslPolicy resource that will be associated with the TargetSslProxy
        # resource. If not set, the TargetSslProxy resource will not have any SSL policy
        # configured.
        # Corresponds to the JSON property `sslPolicy`
        # @return [String]
        attr_accessor :ssl_policy
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @certificate_map = args[:certificate_map] if args.key?(:certificate_map)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @name = args[:name] if args.key?(:name)
          @proxy_header = args[:proxy_header] if args.key?(:proxy_header)
          @self_link = args[:self_link] if args.key?(:self_link)
          @service = args[:service] if args.key?(:service)
          @ssl_certificates = args[:ssl_certificates] if args.key?(:ssl_certificates)
          @ssl_policy = args[:ssl_policy] if args.key?(:ssl_policy)
        end
      end
      
      # Contains a list of TargetSslProxy resources.
      class TargetSslProxyList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of TargetSslProxy resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::TargetSslProxy>]
        attr_accessor :items
      
        # Type of resource.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::TargetSslProxyList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::TargetSslProxyList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class TargetTcpProxiesSetBackendServiceRequest
        include Google::Apis::Core::Hashable
      
        # The URL of the new BackendService resource for the targetTcpProxy.
        # Corresponds to the JSON property `service`
        # @return [String]
        attr_accessor :service
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @service = args[:service] if args.key?(:service)
        end
      end
      
      # 
      class TargetTcpProxiesSetProxyHeaderRequest
        include Google::Apis::Core::Hashable
      
        # The new type of proxy header to append before sending data to the backend.
        # NONE or PROXY_V1 are allowed.
        # Corresponds to the JSON property `proxyHeader`
        # @return [String]
        attr_accessor :proxy_header
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @proxy_header = args[:proxy_header] if args.key?(:proxy_header)
        end
      end
      
      # Represents a Target TCP Proxy resource.
      # A target TCP proxy is a component of a TCP Proxy load balancer. Global
      # forwarding rules reference target TCP proxy, and the target proxy then
      # references an external backend service. For more information, read TCP Proxy
      # Load Balancing overview. (== resource_for `$api_version`.targetTcpProxies ==)
      class TargetTcpProxy
        include Google::Apis::Core::Hashable
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] Type of the resource. Always compute#targetTcpProxy for target
        # TCP proxies.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # Name of the resource. Provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # This field only applies when the forwarding rule that references this target
        # proxy has a loadBalancingScheme set to INTERNAL_SELF_MANAGED.
        # When this field is set to true, Envoy proxies set up inbound traffic
        # interception and bind to the IP address and port specified in the forwarding
        # rule. This is generally useful when using Traffic Director to configure Envoy
        # as a gateway or middle proxy (in other words, not a sidecar proxy). The Envoy
        # proxy listens for inbound requests and handles requests when it receives them.
        # The default is false.
        # Corresponds to the JSON property `proxyBind`
        # @return [Boolean]
        attr_accessor :proxy_bind
        alias_method :proxy_bind?, :proxy_bind
      
        # Specifies the type of proxy header to append before sending data to the
        # backend, either NONE or PROXY_V1. The default is NONE.
        # Corresponds to the JSON property `proxyHeader`
        # @return [String]
        attr_accessor :proxy_header
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # URL to the BackendService resource.
        # Corresponds to the JSON property `service`
        # @return [String]
        attr_accessor :service
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @name = args[:name] if args.key?(:name)
          @proxy_bind = args[:proxy_bind] if args.key?(:proxy_bind)
          @proxy_header = args[:proxy_header] if args.key?(:proxy_header)
          @self_link = args[:self_link] if args.key?(:self_link)
          @service = args[:service] if args.key?(:service)
        end
      end
      
      # Contains a list of TargetTcpProxy resources.
      class TargetTcpProxyList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of TargetTcpProxy resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::TargetTcpProxy>]
        attr_accessor :items
      
        # Type of resource.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::TargetTcpProxyList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::TargetTcpProxyList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Represents a Target VPN Gateway resource.
      # The target VPN gateway resource represents a Classic Cloud VPN gateway. For
      # more information, read the the Cloud VPN Overview. (== resource_for `$
      # api_version`.targetVpnGateways ==)
      class TargetVpnGateway
        include Google::Apis::Core::Hashable
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # [Output Only] A list of URLs to the ForwardingRule resources. ForwardingRules
        # are created using compute.forwardingRules.insert and associated with a VPN
        # gateway.
        # Corresponds to the JSON property `forwardingRules`
        # @return [Array<String>]
        attr_accessor :forwarding_rules
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] Type of resource. Always compute#targetVpnGateway for target VPN
        # gateways.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # A fingerprint for the labels being applied to this TargetVpnGateway, which is
        # essentially a hash of the labels set used for optimistic locking. The
        # fingerprint is initially generated by Compute Engine and changes after every
        # request to modify or update labels. You must always provide an up-to-date
        # fingerprint hash in order to update or change labels, otherwise the request
        # will fail with error 412 conditionNotMet.
        # To see the latest fingerprint, make a get() request to retrieve a
        # TargetVpnGateway.
        # Corresponds to the JSON property `labelFingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :label_fingerprint
      
        # Labels for this resource. These can only be added or modified by the setLabels
        # method. Each label key/value pair must comply with RFC1035. Label values may
        # be empty.
        # Corresponds to the JSON property `labels`
        # @return [Hash<String,String>]
        attr_accessor :labels
      
        # Name of the resource. Provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # URL of the network to which this VPN gateway is attached. Provided by the
        # client when the VPN gateway is created.
        # Corresponds to the JSON property `network`
        # @return [String]
        attr_accessor :network
      
        # [Output Only] URL of the region where the target VPN gateway resides. You must
        # specify this field as part of the HTTP request URL. It is not settable as a
        # field in the request body.
        # Corresponds to the JSON property `region`
        # @return [String]
        attr_accessor :region
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] The status of the VPN gateway, which can be one of the following:
        # CREATING, READY, FAILED, or DELETING.
        # Corresponds to the JSON property `status`
        # @return [String]
        attr_accessor :status
      
        # [Output Only] A list of URLs to VpnTunnel resources. VpnTunnels are created
        # using the compute.vpntunnels.insert method and associated with a VPN gateway.
        # Corresponds to the JSON property `tunnels`
        # @return [Array<String>]
        attr_accessor :tunnels
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @forwarding_rules = args[:forwarding_rules] if args.key?(:forwarding_rules)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @label_fingerprint = args[:label_fingerprint] if args.key?(:label_fingerprint)
          @labels = args[:labels] if args.key?(:labels)
          @name = args[:name] if args.key?(:name)
          @network = args[:network] if args.key?(:network)
          @region = args[:region] if args.key?(:region)
          @self_link = args[:self_link] if args.key?(:self_link)
          @status = args[:status] if args.key?(:status)
          @tunnels = args[:tunnels] if args.key?(:tunnels)
        end
      end
      
      # 
      class TargetVpnGatewayAggregatedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of TargetVpnGateway resources.
        # Corresponds to the JSON property `items`
        # @return [Hash<String,Google::Apis::ComputeAlpha::TargetVpnGatewaysScopedList>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#targetVpnGateway for target VPN
        # gateways.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Unreachable resources.
        # Corresponds to the JSON property `unreachables`
        # @return [Array<String>]
        attr_accessor :unreachables
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::TargetVpnGatewayAggregatedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @unreachables = args[:unreachables] if args.key?(:unreachables)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::TargetVpnGatewayAggregatedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Contains a list of TargetVpnGateway resources.
      class TargetVpnGatewayList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of TargetVpnGateway resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::TargetVpnGateway>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#targetVpnGateway for target VPN
        # gateways.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::TargetVpnGatewayList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::TargetVpnGatewayList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class TargetVpnGatewaysScopedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] A list of target VPN gateways contained in this scope.
        # Corresponds to the JSON property `targetVpnGateways`
        # @return [Array<Google::Apis::ComputeAlpha::TargetVpnGateway>]
        attr_accessor :target_vpn_gateways
      
        # [Output Only] Informational warning which replaces the list of addresses when
        # the list is empty.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::TargetVpnGatewaysScopedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @target_vpn_gateways = args[:target_vpn_gateways] if args.key?(:target_vpn_gateways)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning which replaces the list of addresses when
        # the list is empty.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::TargetVpnGatewaysScopedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class TestFailure
        include Google::Apis::Core::Hashable
      
        # The actual output URL evaluated by load balancer containing the scheme, host,
        # path and query parameters.
        # Corresponds to the JSON property `actualOutputUrl`
        # @return [String]
        attr_accessor :actual_output_url
      
        # Actual HTTP status code for rule with `urlRedirect` calculated by load
        # balancer
        # Corresponds to the JSON property `actualRedirectResponseCode`
        # @return [Fixnum]
        attr_accessor :actual_redirect_response_code
      
        # BackendService or BackendBucket returned by load balancer.
        # Corresponds to the JSON property `actualService`
        # @return [String]
        attr_accessor :actual_service
      
        # The expected output URL evaluated by load balancer containing the scheme, host,
        # path and query parameters.
        # Corresponds to the JSON property `expectedOutputUrl`
        # @return [String]
        attr_accessor :expected_output_url
      
        # Expected HTTP status code for rule with `urlRedirect` calculated by load
        # balancer
        # Corresponds to the JSON property `expectedRedirectResponseCode`
        # @return [Fixnum]
        attr_accessor :expected_redirect_response_code
      
        # Expected BackendService or BackendBucket resource the given URL should be
        # mapped to.
        # Corresponds to the JSON property `expectedService`
        # @return [String]
        attr_accessor :expected_service
      
        # HTTP headers of the request.
        # Corresponds to the JSON property `headers`
        # @return [Array<Google::Apis::ComputeAlpha::UrlMapTestHeader>]
        attr_accessor :headers
      
        # Host portion of the URL.
        # Corresponds to the JSON property `host`
        # @return [String]
        attr_accessor :host
      
        # Path portion including query parameters in the URL.
        # Corresponds to the JSON property `path`
        # @return [String]
        attr_accessor :path
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @actual_output_url = args[:actual_output_url] if args.key?(:actual_output_url)
          @actual_redirect_response_code = args[:actual_redirect_response_code] if args.key?(:actual_redirect_response_code)
          @actual_service = args[:actual_service] if args.key?(:actual_service)
          @expected_output_url = args[:expected_output_url] if args.key?(:expected_output_url)
          @expected_redirect_response_code = args[:expected_redirect_response_code] if args.key?(:expected_redirect_response_code)
          @expected_service = args[:expected_service] if args.key?(:expected_service)
          @headers = args[:headers] if args.key?(:headers)
          @host = args[:host] if args.key?(:host)
          @path = args[:path] if args.key?(:path)
        end
      end
      
      # 
      class TestPermissionsRequest
        include Google::Apis::Core::Hashable
      
        # The set of permissions to check for the 'resource'. Permissions with wildcards
        # (such as '*' or 'storage.*') are not allowed.
        # Corresponds to the JSON property `permissions`
        # @return [Array<String>]
        attr_accessor :permissions
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @permissions = args[:permissions] if args.key?(:permissions)
        end
      end
      
      # 
      class TestPermissionsResponse
        include Google::Apis::Core::Hashable
      
        # A subset of `TestPermissionsRequest.permissions` that the caller is allowed.
        # Corresponds to the JSON property `permissions`
        # @return [Array<String>]
        attr_accessor :permissions
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @permissions = args[:permissions] if args.key?(:permissions)
        end
      end
      
      # [Deprecated] Defines the mechanism to obtain the client or server certificate.
      # Defines the mechanism to obtain the client or server certificate.
      class TlsCertificateContext
        include Google::Apis::Core::Hashable
      
        # [Deprecated] The paths to the mounted TLS Certificates and private key. The
        # paths to the mounted TLS Certificates and private key.
        # Corresponds to the JSON property `certificatePaths`
        # @return [Google::Apis::ComputeAlpha::TlsCertificatePaths]
        attr_accessor :certificate_paths
      
        # Defines how TLS certificates are obtained.
        # Corresponds to the JSON property `certificateSource`
        # @return [String]
        attr_accessor :certificate_source
      
        # [Deprecated] The configuration to access the SDS server. The configuration to
        # access the SDS server.
        # Corresponds to the JSON property `sdsConfig`
        # @return [Google::Apis::ComputeAlpha::SdsConfig]
        attr_accessor :sds_config
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @certificate_paths = args[:certificate_paths] if args.key?(:certificate_paths)
          @certificate_source = args[:certificate_source] if args.key?(:certificate_source)
          @sds_config = args[:sds_config] if args.key?(:sds_config)
        end
      end
      
      # [Deprecated] The paths to the mounted TLS Certificates and private key. The
      # paths to the mounted TLS Certificates and private key.
      class TlsCertificatePaths
        include Google::Apis::Core::Hashable
      
        # The path to the file holding the client or server TLS certificate to use.
        # Corresponds to the JSON property `certificatePath`
        # @return [String]
        attr_accessor :certificate_path
      
        # The path to the file holding the client or server private key.
        # Corresponds to the JSON property `privateKeyPath`
        # @return [String]
        attr_accessor :private_key_path
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @certificate_path = args[:certificate_path] if args.key?(:certificate_path)
          @private_key_path = args[:private_key_path] if args.key?(:private_key_path)
        end
      end
      
      # [Deprecated] The TLS settings for the client or server. The TLS settings for
      # the client or server.
      class TlsContext
        include Google::Apis::Core::Hashable
      
        # [Deprecated] Defines the mechanism to obtain the client or server certificate.
        # Defines the mechanism to obtain the client or server certificate.
        # Corresponds to the JSON property `certificateContext`
        # @return [Google::Apis::ComputeAlpha::TlsCertificateContext]
        attr_accessor :certificate_context
      
        # [Deprecated] Defines the mechanism to obtain the Certificate Authority
        # certificate to validate the client/server certificate. validate the client/
        # server certificate.
        # Corresponds to the JSON property `validationContext`
        # @return [Google::Apis::ComputeAlpha::TlsValidationContext]
        attr_accessor :validation_context
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @certificate_context = args[:certificate_context] if args.key?(:certificate_context)
          @validation_context = args[:validation_context] if args.key?(:validation_context)
        end
      end
      
      # [Deprecated] Defines the mechanism to obtain the Certificate Authority
      # certificate to validate the client/server certificate. validate the client/
      # server certificate.
      class TlsValidationContext
        include Google::Apis::Core::Hashable
      
        # The path to the file holding the CA certificate to validate the client or
        # server certificate.
        # Corresponds to the JSON property `certificatePath`
        # @return [String]
        attr_accessor :certificate_path
      
        # [Deprecated] The configuration to access the SDS server. The configuration to
        # access the SDS server.
        # Corresponds to the JSON property `sdsConfig`
        # @return [Google::Apis::ComputeAlpha::SdsConfig]
        attr_accessor :sds_config
      
        # Defines how TLS certificates are obtained.
        # Corresponds to the JSON property `validationSource`
        # @return [String]
        attr_accessor :validation_source
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @certificate_path = args[:certificate_path] if args.key?(:certificate_path)
          @sds_config = args[:sds_config] if args.key?(:sds_config)
          @validation_source = args[:validation_source] if args.key?(:validation_source)
        end
      end
      
      # 
      class UdpHealthCheck
        include Google::Apis::Core::Hashable
      
        # The UDP port number for the health check request. Valid values are 1 through
        # 65535.
        # Corresponds to the JSON property `port`
        # @return [Fixnum]
        attr_accessor :port
      
        # Port name as defined in InstanceGroup#NamedPort#name. If both port and
        # port_name are defined, port takes precedence.
        # Corresponds to the JSON property `portName`
        # @return [String]
        attr_accessor :port_name
      
        # Raw data of request to send in payload of UDP packet. It is an error if this
        # is empty. The request data can only be ASCII.
        # Corresponds to the JSON property `request`
        # @return [String]
        attr_accessor :request
      
        # The bytes to match against the beginning of the response data. It is an error
        # if this is empty. The response data can only be ASCII.
        # Corresponds to the JSON property `response`
        # @return [String]
        attr_accessor :response
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @port = args[:port] if args.key?(:port)
          @port_name = args[:port_name] if args.key?(:port_name)
          @request = args[:request] if args.key?(:request)
          @response = args[:response] if args.key?(:response)
        end
      end
      
      # Upcoming Maintenance notification information.
      class UpcomingMaintenance
        include Google::Apis::Core::Hashable
      
        # [Output Only] The date when the maintenance will take place. This value is in
        # RFC3339 text format. DEPRECATED: Use start_time_window instead.
        # Corresponds to the JSON property `date`
        # @return [String]
        attr_accessor :date
      
        # [Output Only] The time when the maintenance will take place. This value is in
        # RFC3339 text format. DEPRECATED: Use start_time_window instead.
        # Corresponds to the JSON property `time`
        # @return [String]
        attr_accessor :time
      
        # Defines the type of maintenance.
        # Corresponds to the JSON property `type`
        # @return [String]
        attr_accessor :type
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @date = args[:date] if args.key?(:date)
          @time = args[:time] if args.key?(:time)
          @type = args[:type] if args.key?(:type)
        end
      end
      
      # Represents a URL Map resource.
      # Google Compute Engine has two URL Map resources:
      # * [Global](/compute/docs/reference/rest/`$api_version`/urlMaps) * [Regional](/
      # compute/docs/reference/rest/`$api_version`/regionUrlMaps)
      # A URL map resource is a component of certain types of GCP load balancers and
      # Traffic Director.
      # * urlMaps are used by external HTTP(S) load balancers and Traffic Director. *
      # regionUrlMaps are used by internal HTTP(S) load balancers.
      # For a list of supported URL map features by load balancer type, see the  Load
      # balancing features: Routing and traffic management table.
      # For a list of supported URL map features for Traffic Director, see the
      # Traffic Director features: Routing and traffic management table.
      # This resource defines mappings from host names and URL paths to either a
      # backend service or a backend bucket.
      # To use the global urlMaps resource, the backend service must have a
      # loadBalancingScheme of either EXTERNAL or INTERNAL_SELF_MANAGED. To use the
      # regionUrlMaps resource, the backend service must have a loadBalancingScheme of
      # INTERNAL_MANAGED. For more information, read URL Map Concepts.
      class UrlMap
        include Google::Apis::Core::Hashable
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # defaultRouteAction takes effect when none of the  hostRules match. The load
        # balancer performs advanced routing actions like URL rewrites, header
        # transformations, etc. prior to forwarding the request to the selected backend.
        # If defaultRouteAction specifies any weightedBackendServices, defaultService
        # must not be set. Conversely if defaultService is set, defaultRouteAction
        # cannot contain any  weightedBackendServices.
        # Only one of defaultRouteAction or defaultUrlRedirect must be set.
        # UrlMaps for external HTTP(S) load balancers support only the urlRewrite action
        # within defaultRouteAction.
        # defaultRouteAction has no effect when the URL map is bound to target gRPC
        # proxy that has validateForProxyless field set to true.
        # Corresponds to the JSON property `defaultRouteAction`
        # @return [Google::Apis::ComputeAlpha::HttpRouteAction]
        attr_accessor :default_route_action
      
        # The full or partial URL of the defaultService resource to which traffic is
        # directed if none of the hostRules match. If defaultRouteAction is additionally
        # specified, advanced routing actions like URL Rewrites, etc. take effect prior
        # to sending the request to the backend. However, if defaultService is specified,
        # defaultRouteAction cannot contain any weightedBackendServices. Conversely, if
        # routeAction specifies any weightedBackendServices, service must not be
        # specified.
        # Only one of defaultService, defaultUrlRedirect  or defaultRouteAction.
        # weightedBackendService must be set.
        # defaultService has no effect when the URL map is bound to target gRPC proxy
        # that has validateForProxyless field set to true.
        # Corresponds to the JSON property `defaultService`
        # @return [String]
        attr_accessor :default_service
      
        # Specifies settings for an HTTP redirect.
        # Corresponds to the JSON property `defaultUrlRedirect`
        # @return [Google::Apis::ComputeAlpha::HttpRedirectAction]
        attr_accessor :default_url_redirect
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # Fingerprint of this resource. A hash of the contents stored in this object.
        # This field is used in optimistic locking. This field will be ignored when
        # inserting a UrlMap. An up-to-date fingerprint must be provided in order to
        # update the UrlMap, otherwise the request will fail with error 412
        # conditionNotMet.
        # To see the latest fingerprint, make a get() request to retrieve a UrlMap.
        # Corresponds to the JSON property `fingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :fingerprint
      
        # The request and response header transformations that take effect before the
        # request is passed along to the selected backendService.
        # Corresponds to the JSON property `headerAction`
        # @return [Google::Apis::ComputeAlpha::HttpHeaderAction]
        attr_accessor :header_action
      
        # The list of HostRules to use against the URL.
        # Corresponds to the JSON property `hostRules`
        # @return [Array<Google::Apis::ComputeAlpha::HostRule>]
        attr_accessor :host_rules
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] Type of the resource. Always compute#urlMaps for url maps.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # Name of the resource. Provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # The list of named PathMatchers to use against the URL.
        # Corresponds to the JSON property `pathMatchers`
        # @return [Array<Google::Apis::ComputeAlpha::PathMatcher>]
        attr_accessor :path_matchers
      
        # [Output Only] URL of the region where the regional URL map resides. This field
        # is not applicable to global URL maps. You must specify this field as part of
        # the HTTP request URL. It is not settable as a field in the request body.
        # Corresponds to the JSON property `region`
        # @return [String]
        attr_accessor :region
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # The list of expected URL mapping tests. Request to update this UrlMap will
        # succeed only if all of the test cases pass. You can specify a maximum of 100
        # tests per UrlMap.
        # Not supported when the URL map is bound to target gRPC proxy that has
        # validateForProxyless field set to true.
        # Corresponds to the JSON property `tests`
        # @return [Array<Google::Apis::ComputeAlpha::UrlMapTest>]
        attr_accessor :tests
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @default_route_action = args[:default_route_action] if args.key?(:default_route_action)
          @default_service = args[:default_service] if args.key?(:default_service)
          @default_url_redirect = args[:default_url_redirect] if args.key?(:default_url_redirect)
          @description = args[:description] if args.key?(:description)
          @fingerprint = args[:fingerprint] if args.key?(:fingerprint)
          @header_action = args[:header_action] if args.key?(:header_action)
          @host_rules = args[:host_rules] if args.key?(:host_rules)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @name = args[:name] if args.key?(:name)
          @path_matchers = args[:path_matchers] if args.key?(:path_matchers)
          @region = args[:region] if args.key?(:region)
          @self_link = args[:self_link] if args.key?(:self_link)
          @tests = args[:tests] if args.key?(:tests)
        end
      end
      
      # Contains a list of UrlMap resources.
      class UrlMapList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of UrlMap resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::UrlMap>]
        attr_accessor :items
      
        # Type of resource.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::UrlMapList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::UrlMapList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class UrlMapReference
        include Google::Apis::Core::Hashable
      
        # 
        # Corresponds to the JSON property `urlMap`
        # @return [String]
        attr_accessor :url_map
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @url_map = args[:url_map] if args.key?(:url_map)
        end
      end
      
      # Message for the expected URL mappings.
      class UrlMapTest
        include Google::Apis::Core::Hashable
      
        # The weight to use for the supplied host and path when using advanced routing
        # rules that involve traffic splitting.
        # Corresponds to the JSON property `backendServiceWeight`
        # @return [Fixnum]
        attr_accessor :backend_service_weight
      
        # Description of this test case.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # The expected output URL evaluated by load balancer containing the scheme, host,
        # path and query parameters.
        # For rules that forward requests to backends, the test passes only when
        # expectedOutputUrl matches the request forwarded by load balancer to backends.
        # For rules with urlRewrite, the test verifies that the forwarded request
        # matches hostRewrite and pathPrefixRewrite in the urlRewrite action. When
        # service is specified, expectedOutputUrl`s scheme is ignored.
        # For rules with urlRedirect, the test passes only if expectedOutputUrl matches
        # the URL in the load balancer's redirect response. If urlRedirect specifies
        # https_redirect, the test passes only if the scheme in expectedOutputUrl is
        # also set to https. If urlRedirect specifies strip_query, the test passes only
        # if expectedOutputUrl does not contain any query parameters.
        # expectedOutputUrl is optional when service is specified.
        # Corresponds to the JSON property `expectedOutputUrl`
        # @return [String]
        attr_accessor :expected_output_url
      
        # For rules with urlRedirect, the test passes only if
        # expectedRedirectResponseCode matches the HTTP status code in load balancer's
        # redirect response.
        # expectedRedirectResponseCode cannot be set when service is set.
        # Corresponds to the JSON property `expectedRedirectResponseCode`
        # @return [Fixnum]
        attr_accessor :expected_redirect_response_code
      
        # The expected URL that should be redirected to for the host and path being
        # tested. [Deprecated] This field is deprecated. Use expected_output_url instead.
        # Corresponds to the JSON property `expectedUrlRedirect`
        # @return [String]
        attr_accessor :expected_url_redirect
      
        # HTTP headers for this request. If headers contains a host header, then host
        # must also match the header value.
        # Corresponds to the JSON property `headers`
        # @return [Array<Google::Apis::ComputeAlpha::UrlMapTestHeader>]
        attr_accessor :headers
      
        # Host portion of the URL. If headers contains a host header, then host must
        # also match the header value.
        # Corresponds to the JSON property `host`
        # @return [String]
        attr_accessor :host
      
        # Path portion of the URL.
        # Corresponds to the JSON property `path`
        # @return [String]
        attr_accessor :path
      
        # Expected BackendService or BackendBucket resource the given URL should be
        # mapped to.
        # service cannot be set if expectedRedirectResponseCode is set.
        # Corresponds to the JSON property `service`
        # @return [String]
        attr_accessor :service
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @backend_service_weight = args[:backend_service_weight] if args.key?(:backend_service_weight)
          @description = args[:description] if args.key?(:description)
          @expected_output_url = args[:expected_output_url] if args.key?(:expected_output_url)
          @expected_redirect_response_code = args[:expected_redirect_response_code] if args.key?(:expected_redirect_response_code)
          @expected_url_redirect = args[:expected_url_redirect] if args.key?(:expected_url_redirect)
          @headers = args[:headers] if args.key?(:headers)
          @host = args[:host] if args.key?(:host)
          @path = args[:path] if args.key?(:path)
          @service = args[:service] if args.key?(:service)
        end
      end
      
      # HTTP headers used in UrlMapTests.
      class UrlMapTestHeader
        include Google::Apis::Core::Hashable
      
        # Header name.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # Header value.
        # Corresponds to the JSON property `value`
        # @return [String]
        attr_accessor :value
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @name = args[:name] if args.key?(:name)
          @value = args[:value] if args.key?(:value)
        end
      end
      
      # Message representing the validation result for a UrlMap.
      class UrlMapValidationResult
        include Google::Apis::Core::Hashable
      
        # 
        # Corresponds to the JSON property `loadErrors`
        # @return [Array<String>]
        attr_accessor :load_errors
      
        # Whether the given UrlMap can be successfully loaded. If false, 'loadErrors'
        # indicates the reasons.
        # Corresponds to the JSON property `loadSucceeded`
        # @return [Boolean]
        attr_accessor :load_succeeded
        alias_method :load_succeeded?, :load_succeeded
      
        # 
        # Corresponds to the JSON property `testFailures`
        # @return [Array<Google::Apis::ComputeAlpha::TestFailure>]
        attr_accessor :test_failures
      
        # If successfully loaded, this field indicates whether the test passed. If false,
        # 'testFailures's indicate the reason of failure.
        # Corresponds to the JSON property `testPassed`
        # @return [Boolean]
        attr_accessor :test_passed
        alias_method :test_passed?, :test_passed
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @load_errors = args[:load_errors] if args.key?(:load_errors)
          @load_succeeded = args[:load_succeeded] if args.key?(:load_succeeded)
          @test_failures = args[:test_failures] if args.key?(:test_failures)
          @test_passed = args[:test_passed] if args.key?(:test_passed)
        end
      end
      
      # 
      class UrlMapsAggregatedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of UrlMapsScopedList resources.
        # Corresponds to the JSON property `items`
        # @return [Hash<String,Google::Apis::ComputeAlpha::UrlMapsScopedList>]
        attr_accessor :items
      
        # Type of resource.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Unreachable resources.
        # Corresponds to the JSON property `unreachables`
        # @return [Array<String>]
        attr_accessor :unreachables
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::UrlMapsAggregatedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @unreachables = args[:unreachables] if args.key?(:unreachables)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::UrlMapsAggregatedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class UrlMapsScopedList
        include Google::Apis::Core::Hashable
      
        # A list of UrlMaps contained in this scope.
        # Corresponds to the JSON property `urlMaps`
        # @return [Array<Google::Apis::ComputeAlpha::UrlMap>]
        attr_accessor :url_maps
      
        # Informational warning which replaces the list of backend services when the
        # list is empty.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::UrlMapsScopedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @url_maps = args[:url_maps] if args.key?(:url_maps)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # Informational warning which replaces the list of backend services when the
        # list is empty.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::UrlMapsScopedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class UrlMapsValidateRequest
        include Google::Apis::Core::Hashable
      
        # Represents a URL Map resource.
        # Google Compute Engine has two URL Map resources:
        # * [Global](/compute/docs/reference/rest/`$api_version`/urlMaps) * [Regional](/
        # compute/docs/reference/rest/`$api_version`/regionUrlMaps)
        # A URL map resource is a component of certain types of GCP load balancers and
        # Traffic Director.
        # * urlMaps are used by external HTTP(S) load balancers and Traffic Director. *
        # regionUrlMaps are used by internal HTTP(S) load balancers.
        # For a list of supported URL map features by load balancer type, see the  Load
        # balancing features: Routing and traffic management table.
        # For a list of supported URL map features for Traffic Director, see the
        # Traffic Director features: Routing and traffic management table.
        # This resource defines mappings from host names and URL paths to either a
        # backend service or a backend bucket.
        # To use the global urlMaps resource, the backend service must have a
        # loadBalancingScheme of either EXTERNAL or INTERNAL_SELF_MANAGED. To use the
        # regionUrlMaps resource, the backend service must have a loadBalancingScheme of
        # INTERNAL_MANAGED. For more information, read URL Map Concepts.
        # Corresponds to the JSON property `resource`
        # @return [Google::Apis::ComputeAlpha::UrlMap]
        attr_accessor :resource
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @resource = args[:resource] if args.key?(:resource)
        end
      end
      
      # 
      class UrlMapsValidateResponse
        include Google::Apis::Core::Hashable
      
        # Message representing the validation result for a UrlMap.
        # Corresponds to the JSON property `result`
        # @return [Google::Apis::ComputeAlpha::UrlMapValidationResult]
        attr_accessor :result
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @result = args[:result] if args.key?(:result)
        end
      end
      
      # The spec for modifying the path before sending the request to the matched
      # backend service.
      class UrlRewrite
        include Google::Apis::Core::Hashable
      
        # Prior to forwarding the request to the selected service, the request's host
        # header is replaced with contents of hostRewrite.
        # The value must be between 1 and 255 characters.
        # Corresponds to the JSON property `hostRewrite`
        # @return [String]
        attr_accessor :host_rewrite
      
        # Prior to forwarding the request to the selected backend service, the matching
        # portion of the request's path is replaced by pathPrefixRewrite.
        # The value must be between 1 and 1024 characters.
        # Corresponds to the JSON property `pathPrefixRewrite`
        # @return [String]
        attr_accessor :path_prefix_rewrite
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @host_rewrite = args[:host_rewrite] if args.key?(:host_rewrite)
          @path_prefix_rewrite = args[:path_prefix_rewrite] if args.key?(:path_prefix_rewrite)
        end
      end
      
      # Subnetwork which the current user has compute.subnetworks.use permission on.
      class UsableSubnetwork
        include Google::Apis::Core::Hashable
      
        # The range of internal addresses that are owned by this subnetwork.
        # Corresponds to the JSON property `ipCidrRange`
        # @return [String]
        attr_accessor :ip_cidr_range
      
        # Network URL.
        # Corresponds to the JSON property `network`
        # @return [String]
        attr_accessor :network
      
        # Secondary IP ranges.
        # Corresponds to the JSON property `secondaryIpRanges`
        # @return [Array<Google::Apis::ComputeAlpha::UsableSubnetworkSecondaryRange>]
        attr_accessor :secondary_ip_ranges
      
        # Subnetwork URL.
        # Corresponds to the JSON property `subnetwork`
        # @return [String]
        attr_accessor :subnetwork
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @ip_cidr_range = args[:ip_cidr_range] if args.key?(:ip_cidr_range)
          @network = args[:network] if args.key?(:network)
          @secondary_ip_ranges = args[:secondary_ip_ranges] if args.key?(:secondary_ip_ranges)
          @subnetwork = args[:subnetwork] if args.key?(:subnetwork)
        end
      end
      
      # Secondary IP range of a usable subnetwork.
      class UsableSubnetworkSecondaryRange
        include Google::Apis::Core::Hashable
      
        # The range of IP addresses belonging to this subnetwork secondary range.
        # Corresponds to the JSON property `ipCidrRange`
        # @return [String]
        attr_accessor :ip_cidr_range
      
        # The name associated with this subnetwork secondary range, used when adding an
        # alias IP range to a VM instance. The name must be 1-63 characters long, and
        # comply with RFC1035. The name must be unique within the subnetwork.
        # Corresponds to the JSON property `rangeName`
        # @return [String]
        attr_accessor :range_name
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @ip_cidr_range = args[:ip_cidr_range] if args.key?(:ip_cidr_range)
          @range_name = args[:range_name] if args.key?(:range_name)
        end
      end
      
      # 
      class UsableSubnetworksAggregatedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # [Output] A list of usable subnetwork URLs.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::UsableSubnetwork>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#usableSubnetworksAggregatedList
        # for aggregated lists of usable subnetworks.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::UsableSubnetworksAggregatedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::UsableSubnetworksAggregatedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # The location in Cloud Storage and naming method of the daily usage report.
      # Contains bucket_name and report_name prefix.
      class UsageExportLocation
        include Google::Apis::Core::Hashable
      
        # The name of an existing bucket in Cloud Storage where the usage report object
        # is stored. The Google Service Account is granted write access to this bucket.
        # This can either be the bucket name by itself, such as example-bucket, or the
        # bucket name with gs:// or https://storage.googleapis.com/ in front of it, such
        # as gs://example-bucket.
        # Corresponds to the JSON property `bucketName`
        # @return [String]
        attr_accessor :bucket_name
      
        # An optional prefix for the name of the usage report object stored in
        # bucketName. If not supplied, defaults to usage. The report is stored as a CSV
        # file named report_name_prefix_gce_YYYYMMDD.csv where YYYYMMDD is the day of
        # the usage according to Pacific Time. If you supply a prefix, it should conform
        # to Cloud Storage object naming conventions.
        # Corresponds to the JSON property `reportNamePrefix`
        # @return [String]
        attr_accessor :report_name_prefix
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @bucket_name = args[:bucket_name] if args.key?(:bucket_name)
          @report_name_prefix = args[:report_name_prefix] if args.key?(:report_name_prefix)
        end
      end
      
      # Contain information of Nat mapping for a VM endpoint (i.e., NIC).
      class VmEndpointNatMappings
        include Google::Apis::Core::Hashable
      
        # Name of the VM instance which the endpoint belongs to
        # Corresponds to the JSON property `instanceName`
        # @return [String]
        attr_accessor :instance_name
      
        # 
        # Corresponds to the JSON property `interfaceNatMappings`
        # @return [Array<Google::Apis::ComputeAlpha::VmEndpointNatMappingsInterfaceNatMappings>]
        attr_accessor :interface_nat_mappings
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @instance_name = args[:instance_name] if args.key?(:instance_name)
          @interface_nat_mappings = args[:interface_nat_mappings] if args.key?(:interface_nat_mappings)
        end
      end
      
      # Contain information of Nat mapping for an interface of this endpoint.
      class VmEndpointNatMappingsInterfaceNatMappings
        include Google::Apis::Core::Hashable
      
        # List of all drain IP:port-range mappings assigned to this interface. These
        # ranges are inclusive, that is, both the first and the last ports can be used
        # for NAT. Example: ["2.2.2.2:12345-12355", "1.1.1.1:2234-2234"].
        # Corresponds to the JSON property `drainNatIpPortRanges`
        # @return [Array<String>]
        attr_accessor :drain_nat_ip_port_ranges
      
        # A list of all IP:port-range mappings assigned to this interface. These ranges
        # are inclusive, that is, both the first and the last ports can be used for NAT.
        # Example: ["2.2.2.2:12345-12355", "1.1.1.1:2234-2234"].
        # Corresponds to the JSON property `natIpPortRanges`
        # @return [Array<String>]
        attr_accessor :nat_ip_port_ranges
      
        # Total number of drain ports across all NAT IPs allocated to this interface. It
        # equals to the aggregated port number in the field drain_nat_ip_port_ranges.
        # Corresponds to the JSON property `numTotalDrainNatPorts`
        # @return [Fixnum]
        attr_accessor :num_total_drain_nat_ports
      
        # Total number of ports across all NAT IPs allocated to this interface. It
        # equals to the aggregated port number in the field nat_ip_port_ranges.
        # Corresponds to the JSON property `numTotalNatPorts`
        # @return [Fixnum]
        attr_accessor :num_total_nat_ports
      
        # Information about mappings provided by rules in this NAT.
        # Corresponds to the JSON property `ruleMappings`
        # @return [Array<Google::Apis::ComputeAlpha::VmEndpointNatMappingsInterfaceNatMappingsNatRuleMappings>]
        attr_accessor :rule_mappings
      
        # Alias IP range for this interface endpoint. It will be a private (RFC 1918) IP
        # range. Examples: "10.33.4.55/32", or "192.168.5.0/24".
        # Corresponds to the JSON property `sourceAliasIpRange`
        # @return [String]
        attr_accessor :source_alias_ip_range
      
        # Primary IP of the VM for this NIC.
        # Corresponds to the JSON property `sourceVirtualIp`
        # @return [String]
        attr_accessor :source_virtual_ip
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @drain_nat_ip_port_ranges = args[:drain_nat_ip_port_ranges] if args.key?(:drain_nat_ip_port_ranges)
          @nat_ip_port_ranges = args[:nat_ip_port_ranges] if args.key?(:nat_ip_port_ranges)
          @num_total_drain_nat_ports = args[:num_total_drain_nat_ports] if args.key?(:num_total_drain_nat_ports)
          @num_total_nat_ports = args[:num_total_nat_ports] if args.key?(:num_total_nat_ports)
          @rule_mappings = args[:rule_mappings] if args.key?(:rule_mappings)
          @source_alias_ip_range = args[:source_alias_ip_range] if args.key?(:source_alias_ip_range)
          @source_virtual_ip = args[:source_virtual_ip] if args.key?(:source_virtual_ip)
        end
      end
      
      # Contains information of NAT Mappings provided by a NAT Rule.
      class VmEndpointNatMappingsInterfaceNatMappingsNatRuleMappings
        include Google::Apis::Core::Hashable
      
        # List of all drain IP:port-range mappings assigned to this interface by this
        # rule. These ranges are inclusive, that is, both the first and the last ports
        # can be used for NAT. Example: ["2.2.2.2:12345-12355", "1.1.1.1:2234-2234"].
        # Corresponds to the JSON property `drainNatIpPortRanges`
        # @return [Array<String>]
        attr_accessor :drain_nat_ip_port_ranges
      
        # A list of all IP:port-range mappings assigned to this interface by this rule.
        # These ranges are inclusive, that is, both the first and the last ports can be
        # used for NAT. Example: ["2.2.2.2:12345-12355", "1.1.1.1:2234-2234"].
        # Corresponds to the JSON property `natIpPortRanges`
        # @return [Array<String>]
        attr_accessor :nat_ip_port_ranges
      
        # Total number of drain ports across all NAT IPs allocated to this interface by
        # this rule. It equals the aggregated port number in the field
        # drain_nat_ip_port_ranges.
        # Corresponds to the JSON property `numTotalDrainNatPorts`
        # @return [Fixnum]
        attr_accessor :num_total_drain_nat_ports
      
        # Total number of ports across all NAT IPs allocated to this interface by this
        # rule. It equals the aggregated port number in the field nat_ip_port_ranges.
        # Corresponds to the JSON property `numTotalNatPorts`
        # @return [Fixnum]
        attr_accessor :num_total_nat_ports
      
        # Rule number of the NAT Rule.
        # Corresponds to the JSON property `ruleNumber`
        # @return [Fixnum]
        attr_accessor :rule_number
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @drain_nat_ip_port_ranges = args[:drain_nat_ip_port_ranges] if args.key?(:drain_nat_ip_port_ranges)
          @nat_ip_port_ranges = args[:nat_ip_port_ranges] if args.key?(:nat_ip_port_ranges)
          @num_total_drain_nat_ports = args[:num_total_drain_nat_ports] if args.key?(:num_total_drain_nat_ports)
          @num_total_nat_ports = args[:num_total_nat_ports] if args.key?(:num_total_nat_ports)
          @rule_number = args[:rule_number] if args.key?(:rule_number)
        end
      end
      
      # Contains a list of VmEndpointNatMappings.
      class VmEndpointNatMappingsList
        include Google::Apis::Core::Hashable
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # [Output Only] Type of resource. Always compute#vmEndpointNatMappingsList for
        # lists of Nat mappings of VM endpoints.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] A list of Nat mapping information of VM endpoints.
        # Corresponds to the JSON property `result`
        # @return [Array<Google::Apis::ComputeAlpha::VmEndpointNatMappings>]
        attr_accessor :result
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::VmEndpointNatMappingsList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @result = args[:result] if args.key?(:result)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::VmEndpointNatMappingsList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Represents a HA VPN gateway.
      # HA VPN is a high-availability (HA) Cloud VPN solution that lets you securely
      # connect your on-premises network to your Google Cloud Virtual Private Cloud
      # network through an IPsec VPN connection in a single region. For more
      # information about Cloud HA VPN solutions, see  Cloud VPN topologies . (==
      # resource_for `$api_version`.vpnGateways ==)
      class VpnGateway
        include Google::Apis::Core::Hashable
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] Type of resource. Always compute#vpnGateway for VPN gateways.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # A fingerprint for the labels being applied to this VpnGateway, which is
        # essentially a hash of the labels set used for optimistic locking. The
        # fingerprint is initially generated by Compute Engine and changes after every
        # request to modify or update labels. You must always provide an up-to-date
        # fingerprint hash in order to update or change labels, otherwise the request
        # will fail with error 412 conditionNotMet.
        # To see the latest fingerprint, make a get() request to retrieve an VpnGateway.
        # Corresponds to the JSON property `labelFingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :label_fingerprint
      
        # Labels for this resource. These can only be added or modified by the setLabels
        # method. Each label key/value pair must comply with RFC1035. Label values may
        # be empty.
        # Corresponds to the JSON property `labels`
        # @return [Hash<String,String>]
        attr_accessor :labels
      
        # Name of the resource. Provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # URL of the network to which this VPN gateway is attached. Provided by the
        # client when the VPN gateway is created.
        # Corresponds to the JSON property `network`
        # @return [String]
        attr_accessor :network
      
        # [Output Only] URL of the region where the VPN gateway resides.
        # Corresponds to the JSON property `region`
        # @return [String]
        attr_accessor :region
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # A list of interfaces on this VPN gateway.
        # Corresponds to the JSON property `vpnInterfaces`
        # @return [Array<Google::Apis::ComputeAlpha::VpnGatewayVpnGatewayInterface>]
        attr_accessor :vpn_interfaces
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @label_fingerprint = args[:label_fingerprint] if args.key?(:label_fingerprint)
          @labels = args[:labels] if args.key?(:labels)
          @name = args[:name] if args.key?(:name)
          @network = args[:network] if args.key?(:network)
          @region = args[:region] if args.key?(:region)
          @self_link = args[:self_link] if args.key?(:self_link)
          @vpn_interfaces = args[:vpn_interfaces] if args.key?(:vpn_interfaces)
        end
      end
      
      # 
      class VpnGatewayAggregatedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of VpnGateway resources.
        # Corresponds to the JSON property `items`
        # @return [Hash<String,Google::Apis::ComputeAlpha::VpnGatewaysScopedList>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#vpnGateway for VPN gateways.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Unreachable resources.
        # Corresponds to the JSON property `unreachables`
        # @return [Array<String>]
        attr_accessor :unreachables
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::VpnGatewayAggregatedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @unreachables = args[:unreachables] if args.key?(:unreachables)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::VpnGatewayAggregatedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Contains a list of VpnGateway resources.
      class VpnGatewayList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of VpnGateway resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::VpnGateway>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#vpnGateway for VPN gateways.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::VpnGatewayList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::VpnGatewayList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class VpnGatewayStatus
        include Google::Apis::Core::Hashable
      
        # List of VPN connection for this VpnGateway.
        # Corresponds to the JSON property `vpnConnections`
        # @return [Array<Google::Apis::ComputeAlpha::VpnGatewayStatusVpnConnection>]
        attr_accessor :vpn_connections
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @vpn_connections = args[:vpn_connections] if args.key?(:vpn_connections)
        end
      end
      
      # Describes the high availability requirement state for the VPN connection
      # between this Cloud VPN gateway and a peer gateway.
      class VpnGatewayStatusHighAvailabilityRequirementState
        include Google::Apis::Core::Hashable
      
        # Indicates the high availability requirement state for the VPN connection.
        # Valid values are CONNECTION_REDUNDANCY_MET, CONNECTION_REDUNDANCY_NOT_MET.
        # Corresponds to the JSON property `state`
        # @return [String]
        attr_accessor :state
      
        # Indicates the reason why the VPN connection does not meet the high
        # availability redundancy criteria/requirement. Valid values is
        # INCOMPLETE_TUNNELS_COVERAGE.
        # Corresponds to the JSON property `unsatisfiedReason`
        # @return [String]
        attr_accessor :unsatisfied_reason
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @state = args[:state] if args.key?(:state)
          @unsatisfied_reason = args[:unsatisfied_reason] if args.key?(:unsatisfied_reason)
        end
      end
      
      # Contains some information about a VPN tunnel.
      class VpnGatewayStatusTunnel
        include Google::Apis::Core::Hashable
      
        # The VPN gateway interface this VPN tunnel is associated with.
        # Corresponds to the JSON property `localGatewayInterface`
        # @return [Fixnum]
        attr_accessor :local_gateway_interface
      
        # The peer gateway interface this VPN tunnel is connected to, the peer gateway
        # could either be an external VPN gateway or GCP VPN gateway.
        # Corresponds to the JSON property `peerGatewayInterface`
        # @return [Fixnum]
        attr_accessor :peer_gateway_interface
      
        # URL reference to the VPN tunnel.
        # Corresponds to the JSON property `tunnelUrl`
        # @return [String]
        attr_accessor :tunnel_url
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @local_gateway_interface = args[:local_gateway_interface] if args.key?(:local_gateway_interface)
          @peer_gateway_interface = args[:peer_gateway_interface] if args.key?(:peer_gateway_interface)
          @tunnel_url = args[:tunnel_url] if args.key?(:tunnel_url)
        end
      end
      
      # A VPN connection contains all VPN tunnels connected from this VpnGateway to
      # the same peer gateway. The peer gateway could either be a external VPN gateway
      # or GCP VPN gateway.
      class VpnGatewayStatusVpnConnection
        include Google::Apis::Core::Hashable
      
        # URL reference to the peer external VPN gateways to which the VPN tunnels in
        # this VPN connection are connected. This field is mutually exclusive with
        # peer_gcp_gateway.
        # Corresponds to the JSON property `peerExternalGateway`
        # @return [String]
        attr_accessor :peer_external_gateway
      
        # URL reference to the peer side VPN gateways to which the VPN tunnels in this
        # VPN connection are connected. This field is mutually exclusive with
        # peer_gcp_gateway.
        # Corresponds to the JSON property `peerGcpGateway`
        # @return [String]
        attr_accessor :peer_gcp_gateway
      
        # Describes the high availability requirement state for the VPN connection
        # between this Cloud VPN gateway and a peer gateway.
        # Corresponds to the JSON property `state`
        # @return [Google::Apis::ComputeAlpha::VpnGatewayStatusHighAvailabilityRequirementState]
        attr_accessor :state
      
        # List of VPN tunnels that are in this VPN connection.
        # Corresponds to the JSON property `tunnels`
        # @return [Array<Google::Apis::ComputeAlpha::VpnGatewayStatusTunnel>]
        attr_accessor :tunnels
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @peer_external_gateway = args[:peer_external_gateway] if args.key?(:peer_external_gateway)
          @peer_gcp_gateway = args[:peer_gcp_gateway] if args.key?(:peer_gcp_gateway)
          @state = args[:state] if args.key?(:state)
          @tunnels = args[:tunnels] if args.key?(:tunnels)
        end
      end
      
      # A VPN gateway interface.
      class VpnGatewayVpnGatewayInterface
        include Google::Apis::Core::Hashable
      
        # The numeric ID of this VPN gateway interface.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # URL of the interconnect attachment resource. When the value of this field is
        # present, the VPN Gateway will be used for IPsec over Interconnect; all Egress
        # or Ingress traffic for this VPN Gateway interface will go through the
        # specified interconnect attachment resource.
        # Corresponds to the JSON property `interconnectAttachment`
        # @return [String]
        attr_accessor :interconnect_attachment
      
        # [Output Only] The external IP address for this VPN gateway interface.
        # Corresponds to the JSON property `ipAddress`
        # @return [String]
        attr_accessor :ip_address
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @interconnect_attachment = args[:interconnect_attachment] if args.key?(:interconnect_attachment)
          @ip_address = args[:ip_address] if args.key?(:ip_address)
        end
      end
      
      # 
      class VpnGatewaysGetStatusResponse
        include Google::Apis::Core::Hashable
      
        # 
        # Corresponds to the JSON property `result`
        # @return [Google::Apis::ComputeAlpha::VpnGatewayStatus]
        attr_accessor :result
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @result = args[:result] if args.key?(:result)
        end
      end
      
      # 
      class VpnGatewaysScopedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] A list of VPN gateways contained in this scope.
        # Corresponds to the JSON property `vpnGateways`
        # @return [Array<Google::Apis::ComputeAlpha::VpnGateway>]
        attr_accessor :vpn_gateways
      
        # [Output Only] Informational warning which replaces the list of addresses when
        # the list is empty.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::VpnGatewaysScopedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @vpn_gateways = args[:vpn_gateways] if args.key?(:vpn_gateways)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning which replaces the list of addresses when
        # the list is empty.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::VpnGatewaysScopedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Represents a Cloud VPN Tunnel resource.
      # For more information about VPN, read the  the Cloud VPN Overview. (==
      # resource_for `$api_version`.vpnTunnels ==)
      class VpnTunnel
        include Google::Apis::Core::Hashable
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # An optional description of this resource. Provide this property when you
        # create the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # [Output Only] Detailed status message for the VPN tunnel.
        # Corresponds to the JSON property `detailedStatus`
        # @return [String]
        attr_accessor :detailed_status
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # IKE protocol version to use when establishing the VPN tunnel with the peer VPN
        # gateway. Acceptable IKE versions are 1 or 2. The default version is 2.
        # Corresponds to the JSON property `ikeVersion`
        # @return [Fixnum]
        attr_accessor :ike_version
      
        # [Output Only] Type of resource. Always compute#vpnTunnel for VPN tunnels.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # A fingerprint for the labels being applied to this VpnTunnel, which is
        # essentially a hash of the labels set used for optimistic locking. The
        # fingerprint is initially generated by Compute Engine and changes after every
        # request to modify or update labels. You must always provide an up-to-date
        # fingerprint hash in order to update or change labels, otherwise the request
        # will fail with error 412 conditionNotMet.
        # To see the latest fingerprint, make a get() request to retrieve a VpnTunnel.
        # Corresponds to the JSON property `labelFingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :label_fingerprint
      
        # Labels for this resource. These can only be added or modified by the setLabels
        # method. Each label key/value pair must comply with RFC1035. Label values may
        # be empty.
        # Corresponds to the JSON property `labels`
        # @return [Hash<String,String>]
        attr_accessor :labels
      
        # Local traffic selector to use when establishing the VPN tunnel with the peer
        # VPN gateway. The value should be a CIDR formatted string, for example: 192.168.
        # 0.0/16. The ranges must be disjoint. Only IPv4 is supported.
        # Corresponds to the JSON property `localTrafficSelector`
        # @return [Array<String>]
        attr_accessor :local_traffic_selector
      
        # Name of the resource. Provided by the client when the resource is created. The
        # name must be 1-63 characters long, and comply with RFC1035. Specifically, the
        # name must be 1-63 characters long and match the regular expression `[a-z]([-a-
        # z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter,
        # and all following characters must be a dash, lowercase letter, or digit,
        # except the last character, which cannot be a dash.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # URL of the peer side external VPN gateway to which this VPN tunnel is
        # connected. Provided by the client when the VPN tunnel is created. This field
        # is exclusive with the field peerGcpGateway.
        # Corresponds to the JSON property `peerExternalGateway`
        # @return [String]
        attr_accessor :peer_external_gateway
      
        # The interface ID of the external VPN gateway to which this VPN tunnel is
        # connected. Provided by the client when the VPN tunnel is created.
        # Corresponds to the JSON property `peerExternalGatewayInterface`
        # @return [Fixnum]
        attr_accessor :peer_external_gateway_interface
      
        # URL of the peer side HA GCP VPN gateway to which this VPN tunnel is connected.
        # Provided by the client when the VPN tunnel is created. This field can be used
        # when creating highly available VPN from VPC network to VPC network, the field
        # is exclusive with the field peerExternalGateway. If provided, the VPN tunnel
        # will automatically use the same vpnGatewayInterface ID in the peer GCP VPN
        # gateway.
        # Corresponds to the JSON property `peerGcpGateway`
        # @return [String]
        attr_accessor :peer_gcp_gateway
      
        # IP address of the peer VPN gateway. Only IPv4 is supported.
        # Corresponds to the JSON property `peerIp`
        # @return [String]
        attr_accessor :peer_ip
      
        # [Output Only] URL of the region where the VPN tunnel resides. You must specify
        # this field as part of the HTTP request URL. It is not settable as a field in
        # the request body.
        # Corresponds to the JSON property `region`
        # @return [String]
        attr_accessor :region
      
        # Remote traffic selectors to use when establishing the VPN tunnel with the peer
        # VPN gateway. The value should be a CIDR formatted string, for example: 192.168.
        # 0.0/16. The ranges should be disjoint. Only IPv4 is supported.
        # Corresponds to the JSON property `remoteTrafficSelector`
        # @return [Array<String>]
        attr_accessor :remote_traffic_selector
      
        # URL of the router resource to be used for dynamic routing.
        # Corresponds to the JSON property `router`
        # @return [String]
        attr_accessor :router
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # Shared secret used to set the secure session between the Cloud VPN gateway and
        # the peer VPN gateway.
        # Corresponds to the JSON property `sharedSecret`
        # @return [String]
        attr_accessor :shared_secret
      
        # Hash of the shared secret.
        # Corresponds to the JSON property `sharedSecretHash`
        # @return [String]
        attr_accessor :shared_secret_hash
      
        # [Output Only] The status of the VPN tunnel, which can be one of the following:
        # - PROVISIONING: Resource is being allocated for the VPN tunnel.
        # - WAITING_FOR_FULL_CONFIG: Waiting to receive all VPN-related configs from the
        # user. Network, TargetVpnGateway, VpnTunnel, ForwardingRule, and Route
        # resources are needed to setup the VPN tunnel.
        # - FIRST_HANDSHAKE: Successful first handshake with the peer VPN.
        # - ESTABLISHED: Secure session is successfully established with the peer VPN.
        # - NETWORK_ERROR: Deprecated, replaced by NO_INCOMING_PACKETS
        # - AUTHORIZATION_ERROR: Auth error (for example, bad shared secret).
        # - NEGOTIATION_FAILURE: Handshake failed.
        # - DEPROVISIONING: Resources are being deallocated for the VPN tunnel.
        # - FAILED: Tunnel creation has failed and the tunnel is not ready to be used.
        # - NO_INCOMING_PACKETS: No incoming packets from peer.
        # - REJECTED: Tunnel configuration was rejected, can be result of being
        # blacklisted.
        # - ALLOCATING_RESOURCES: Cloud VPN is in the process of allocating all required
        # resources.
        # - STOPPED: Tunnel is stopped due to its Forwarding Rules being deleted for
        # Classic VPN tunnels or the project is in frozen state.
        # - PEER_IDENTITY_MISMATCH: Peer identity does not match peer IP, probably
        # behind NAT.
        # - TS_NARROWING_NOT_ALLOWED: Traffic selector narrowing not allowed for an HA-
        # VPN tunnel.
        # Corresponds to the JSON property `status`
        # @return [String]
        attr_accessor :status
      
        # URL of the Target VPN gateway with which this VPN tunnel is associated.
        # Provided by the client when the VPN tunnel is created.
        # Corresponds to the JSON property `targetVpnGateway`
        # @return [String]
        attr_accessor :target_vpn_gateway
      
        # URL of the VPN gateway with which this VPN tunnel is associated. Provided by
        # the client when the VPN tunnel is created. This must be used (instead of
        # target_vpn_gateway) if a High Availability VPN gateway resource is created.
        # Corresponds to the JSON property `vpnGateway`
        # @return [String]
        attr_accessor :vpn_gateway
      
        # The interface ID of the VPN gateway with which this VPN tunnel is associated.
        # Corresponds to the JSON property `vpnGatewayInterface`
        # @return [Fixnum]
        attr_accessor :vpn_gateway_interface
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @description = args[:description] if args.key?(:description)
          @detailed_status = args[:detailed_status] if args.key?(:detailed_status)
          @id = args[:id] if args.key?(:id)
          @ike_version = args[:ike_version] if args.key?(:ike_version)
          @kind = args[:kind] if args.key?(:kind)
          @label_fingerprint = args[:label_fingerprint] if args.key?(:label_fingerprint)
          @labels = args[:labels] if args.key?(:labels)
          @local_traffic_selector = args[:local_traffic_selector] if args.key?(:local_traffic_selector)
          @name = args[:name] if args.key?(:name)
          @peer_external_gateway = args[:peer_external_gateway] if args.key?(:peer_external_gateway)
          @peer_external_gateway_interface = args[:peer_external_gateway_interface] if args.key?(:peer_external_gateway_interface)
          @peer_gcp_gateway = args[:peer_gcp_gateway] if args.key?(:peer_gcp_gateway)
          @peer_ip = args[:peer_ip] if args.key?(:peer_ip)
          @region = args[:region] if args.key?(:region)
          @remote_traffic_selector = args[:remote_traffic_selector] if args.key?(:remote_traffic_selector)
          @router = args[:router] if args.key?(:router)
          @self_link = args[:self_link] if args.key?(:self_link)
          @shared_secret = args[:shared_secret] if args.key?(:shared_secret)
          @shared_secret_hash = args[:shared_secret_hash] if args.key?(:shared_secret_hash)
          @status = args[:status] if args.key?(:status)
          @target_vpn_gateway = args[:target_vpn_gateway] if args.key?(:target_vpn_gateway)
          @vpn_gateway = args[:vpn_gateway] if args.key?(:vpn_gateway)
          @vpn_gateway_interface = args[:vpn_gateway_interface] if args.key?(:vpn_gateway_interface)
        end
      end
      
      # 
      class VpnTunnelAggregatedList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of VpnTunnelsScopedList resources.
        # Corresponds to the JSON property `items`
        # @return [Hash<String,Google::Apis::ComputeAlpha::VpnTunnelsScopedList>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#vpnTunnel for VPN tunnels.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Unreachable resources.
        # Corresponds to the JSON property `unreachables`
        # @return [Array<String>]
        attr_accessor :unreachables
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::VpnTunnelAggregatedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @unreachables = args[:unreachables] if args.key?(:unreachables)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::VpnTunnelAggregatedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Contains a list of VpnTunnel resources.
      class VpnTunnelList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of VpnTunnel resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::VpnTunnel>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#vpnTunnel for VPN tunnels.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::VpnTunnelList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::VpnTunnelList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class VpnTunnelsScopedList
        include Google::Apis::Core::Hashable
      
        # A list of VPN tunnels contained in this scope.
        # Corresponds to the JSON property `vpnTunnels`
        # @return [Array<Google::Apis::ComputeAlpha::VpnTunnel>]
        attr_accessor :vpn_tunnels
      
        # Informational warning which replaces the list of addresses when the list is
        # empty.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::VpnTunnelsScopedList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @vpn_tunnels = args[:vpn_tunnels] if args.key?(:vpn_tunnels)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # Informational warning which replaces the list of addresses when the list is
        # empty.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::VpnTunnelsScopedList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class WafExpressionSet
        include Google::Apis::Core::Hashable
      
        # A list of alternate IDs. The format should be: - E.g. XSS-stable Generic
        # suffix like "stable" is particularly useful if a policy likes to avail newer
        # set of expressions without having to change the policy. A given alias name can'
        # t be used for more than one entity set.
        # Corresponds to the JSON property `aliases`
        # @return [Array<String>]
        attr_accessor :aliases
      
        # List of available expressions.
        # Corresponds to the JSON property `expressions`
        # @return [Array<Google::Apis::ComputeAlpha::WafExpressionSetExpression>]
        attr_accessor :expressions
      
        # Google specified expression set ID. The format should be: - E.g. XSS-20170329
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @aliases = args[:aliases] if args.key?(:aliases)
          @expressions = args[:expressions] if args.key?(:expressions)
          @id = args[:id] if args.key?(:id)
        end
      end
      
      # 
      class WafExpressionSetExpression
        include Google::Apis::Core::Hashable
      
        # Expression ID should uniquely identify the origin of the expression. E.g.
        # owasp-crs-v020901-id973337 identifies Owasp core rule set version 2.9.1 rule
        # id 973337. The ID could be used to determine the individual attack definition
        # that has been detected. It could also be used to exclude it from the policy in
        # case of false positive.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
        end
      end
      
      # In contrast to a single BackendService in  HttpRouteAction to which all
      # matching traffic is directed to, WeightedBackendService allows traffic to be
      # split across multiple BackendServices. The volume of traffic for each
      # BackendService is proportional to the weight specified in each
      # WeightedBackendService
      class WeightedBackendService
        include Google::Apis::Core::Hashable
      
        # The full or partial URL to the default BackendService resource. Before
        # forwarding the request to backendService, the loadbalancer applies any
        # relevant headerActions specified as part of this backendServiceWeight.
        # Corresponds to the JSON property `backendService`
        # @return [String]
        attr_accessor :backend_service
      
        # The request and response header transformations that take effect before the
        # request is passed along to the selected backendService.
        # Corresponds to the JSON property `headerAction`
        # @return [Google::Apis::ComputeAlpha::HttpHeaderAction]
        attr_accessor :header_action
      
        # Specifies the fraction of traffic sent to backendService, computed as weight /
        # (sum of all weightedBackendService weights in routeAction) .
        # The selection of a backend service is determined only for new traffic. Once a
        # user's request has been directed to a backendService, subsequent requests will
        # be sent to the same backendService as determined by the BackendService's
        # session affinity policy.
        # The value must be between 0 and 1000
        # Corresponds to the JSON property `weight`
        # @return [Fixnum]
        attr_accessor :weight
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @backend_service = args[:backend_service] if args.key?(:backend_service)
          @header_action = args[:header_action] if args.key?(:header_action)
          @weight = args[:weight] if args.key?(:weight)
        end
      end
      
      # 
      class XpnHostList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # [Output Only] A list of shared VPC host project URLs.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::Project>]
        attr_accessor :items
      
        # [Output Only] Type of resource. Always compute#xpnHostList for lists of shared
        # VPC hosts.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::XpnHostList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::XpnHostList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # Service resource (a.k.a service project) ID.
      class XpnResourceId
        include Google::Apis::Core::Hashable
      
        # The ID of the service resource. In the case of projects, this field supports
        # project id (e.g., my-project-123) and project number (e.g. 12345678).
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # The type of the service resource.
        # Corresponds to the JSON property `type`
        # @return [String]
        attr_accessor :type
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @type = args[:type] if args.key?(:type)
        end
      end
      
      # Represents a Zone resource.
      # A zone is a deployment area. These deployment areas are subsets of a region.
      # For example the zone us-east1-a is located in the us-east1 region. For more
      # information, read Regions and Zones. (== resource_for `$api_version`.zones ==)
      class Zone
        include Google::Apis::Core::Hashable
      
        # [Output Only] Available cpu/platform selections for the zone.
        # Corresponds to the JSON property `availableCpuPlatforms`
        # @return [Array<String>]
        attr_accessor :available_cpu_platforms
      
        # [Output Only] Creation timestamp in RFC3339 text format.
        # Corresponds to the JSON property `creationTimestamp`
        # @return [String]
        attr_accessor :creation_timestamp
      
        # Deprecation status for a public resource.
        # Corresponds to the JSON property `deprecated`
        # @return [Google::Apis::ComputeAlpha::DeprecationStatus]
        attr_accessor :deprecated
      
        # [Output Only] Textual description of the resource.
        # Corresponds to the JSON property `description`
        # @return [String]
        attr_accessor :description
      
        # [Output Only] The unique identifier for the resource. This identifier is
        # defined by the server.
        # Corresponds to the JSON property `id`
        # @return [Fixnum]
        attr_accessor :id
      
        # [Output Only] Type of the resource. Always compute#zone for zones.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] Name of the resource.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # [Output Only] Full URL reference to the region which hosts the zone.
        # Corresponds to the JSON property `region`
        # @return [String]
        attr_accessor :region
      
        # [Output Only] Server-defined URL for the resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Status of the zone, either UP or DOWN.
        # Corresponds to the JSON property `status`
        # @return [String]
        attr_accessor :status
      
        # [Output Only] Reserved for future use.
        # Corresponds to the JSON property `supportsPzs`
        # @return [Boolean]
        attr_accessor :supports_pzs
        alias_method :supports_pzs?, :supports_pzs
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @available_cpu_platforms = args[:available_cpu_platforms] if args.key?(:available_cpu_platforms)
          @creation_timestamp = args[:creation_timestamp] if args.key?(:creation_timestamp)
          @deprecated = args[:deprecated] if args.key?(:deprecated)
          @description = args[:description] if args.key?(:description)
          @id = args[:id] if args.key?(:id)
          @kind = args[:kind] if args.key?(:kind)
          @name = args[:name] if args.key?(:name)
          @region = args[:region] if args.key?(:region)
          @self_link = args[:self_link] if args.key?(:self_link)
          @status = args[:status] if args.key?(:status)
          @supports_pzs = args[:supports_pzs] if args.key?(:supports_pzs)
        end
      end
      
      # 
      class ZoneInstantSnapshotsExportRequest
        include Google::Apis::Core::Hashable
      
        # Parameters to export the changed blocks.
        # Corresponds to the JSON property `exportParams`
        # @return [Google::Apis::ComputeAlpha::InstantSnapshotExportParams]
        attr_accessor :export_params
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @export_params = args[:export_params] if args.key?(:export_params)
        end
      end
      
      # Contains a list of zone resources.
      class ZoneList
        include Google::Apis::Core::Hashable
      
        # [Output Only] Unique identifier for the resource; defined by the server.
        # Corresponds to the JSON property `id`
        # @return [String]
        attr_accessor :id
      
        # A list of Zone resources.
        # Corresponds to the JSON property `items`
        # @return [Array<Google::Apis::ComputeAlpha::Zone>]
        attr_accessor :items
      
        # Type of resource.
        # Corresponds to the JSON property `kind`
        # @return [String]
        attr_accessor :kind
      
        # [Output Only] This token allows you to get the next page of results for list
        # requests. If the number of results is larger than maxResults, use the
        # nextPageToken as a value for the query parameter pageToken in the next list
        # request. Subsequent list requests will have their own nextPageToken to
        # continue paging through the results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # [Output Only] Server-defined URL for this resource.
        # Corresponds to the JSON property `selfLink`
        # @return [String]
        attr_accessor :self_link
      
        # [Output Only] Informational warning message.
        # Corresponds to the JSON property `warning`
        # @return [Google::Apis::ComputeAlpha::ZoneList::Warning]
        attr_accessor :warning
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @id = args[:id] if args.key?(:id)
          @items = args[:items] if args.key?(:items)
          @kind = args[:kind] if args.key?(:kind)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @self_link = args[:self_link] if args.key?(:self_link)
          @warning = args[:warning] if args.key?(:warning)
        end
        
        # [Output Only] Informational warning message.
        class Warning
          include Google::Apis::Core::Hashable
        
          # [Output Only] A warning code, if applicable. For example, Compute Engine
          # returns NO_RESULTS_ON_PAGE if there are no results in the response.
          # Corresponds to the JSON property `code`
          # @return [String]
          attr_accessor :code
        
          # [Output Only] Metadata about this warning in key: value format. For example:
          # "data": [ ` "key": "scope", "value": "zones/us-east1-d" `
          # Corresponds to the JSON property `data`
          # @return [Array<Google::Apis::ComputeAlpha::ZoneList::Warning::Datum>]
          attr_accessor :data
        
          # [Output Only] A human-readable description of the warning code.
          # Corresponds to the JSON property `message`
          # @return [String]
          attr_accessor :message
        
          def initialize(**args)
             update!(**args)
          end
        
          # Update properties of this object
          def update!(**args)
            @code = args[:code] if args.key?(:code)
            @data = args[:data] if args.key?(:data)
            @message = args[:message] if args.key?(:message)
          end
          
          # 
          class Datum
            include Google::Apis::Core::Hashable
          
            # [Output Only] A key that provides more detail on the warning being returned.
            # For example, for warnings where there are no results in a list request for a
            # particular zone, this key might be scope and the key value might be the zone
            # name. Other examples might be a key indicating a deprecated resource and a
            # suggested replacement, or a warning about invalid network settings (for
            # example, if an instance attempts to perform IP forwarding but is not enabled
            # for IP forwarding).
            # Corresponds to the JSON property `key`
            # @return [String]
            attr_accessor :key
          
            # [Output Only] A warning data value corresponding to the key.
            # Corresponds to the JSON property `value`
            # @return [String]
            attr_accessor :value
          
            def initialize(**args)
               update!(**args)
            end
          
            # Update properties of this object
            def update!(**args)
              @key = args[:key] if args.key?(:key)
              @value = args[:value] if args.key?(:value)
            end
          end
        end
      end
      
      # 
      class ZoneSetLabelsRequest
        include Google::Apis::Core::Hashable
      
        # The fingerprint of the previous set of labels for this resource, used to
        # detect conflicts. The fingerprint is initially generated by Compute Engine and
        # changes after every request to modify or update labels. You must always
        # provide an up-to-date fingerprint hash in order to update or change labels.
        # Make a get() request to the resource to get the latest fingerprint.
        # Corresponds to the JSON property `labelFingerprint`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :label_fingerprint
      
        # The labels to set for this resource.
        # Corresponds to the JSON property `labels`
        # @return [Hash<String,String>]
        attr_accessor :labels
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @label_fingerprint = args[:label_fingerprint] if args.key?(:label_fingerprint)
          @labels = args[:labels] if args.key?(:labels)
        end
      end
      
      # 
      class ZoneSetPolicyRequest
        include Google::Apis::Core::Hashable
      
        # Flatten Policy to create a backwacd compatible wire-format. Deprecated. Use '
        # policy' to specify bindings.
        # Corresponds to the JSON property `bindings`
        # @return [Array<Google::Apis::ComputeAlpha::Binding>]
        attr_accessor :bindings
      
        # Flatten Policy to create a backward compatible wire-format. Deprecated. Use '
        # policy' to specify the etag.
        # Corresponds to the JSON property `etag`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :etag
      
        # An Identity and Access Management (IAM) policy, which specifies access
        # controls for Google Cloud resources.
        # A `Policy` is a collection of `bindings`. A `binding` binds one or more `
        # members` to a single `role`. Members can be user accounts, service accounts,
        # Google groups, and domains (such as G Suite). A `role` is a named list of
        # permissions; each `role` can be an IAM predefined role or a user-created
        # custom role.
        # For some types of Google Cloud resources, a `binding` can also specify a `
        # condition`, which is a logical expression that allows access to a resource
        # only if the expression evaluates to `true`. A condition can add constraints
        # based on attributes of the request, the resource, or both. To learn which
        # resources support conditions in their IAM policies, see the [IAM documentation]
        # (https://cloud.google.com/iam/help/conditions/resource-policies).
        # **JSON example:**
        # ` "bindings": [ ` "role": "roles/resourcemanager.organizationAdmin", "members":
        # [ "user:mike@example.com", "group:admins@example.com", "domain:google.com", "
        # serviceAccount:my-project-id@appspot.gserviceaccount.com" ] `, ` "role": "
        # roles/resourcemanager.organizationViewer", "members": [ "user:eve@example.com"
        # ], "condition": ` "title": "expirable access", "description": "Does not grant
        # access after Sep 2020", "expression": "request.time < timestamp('2020-10-01T00:
        # 00:00.000Z')", ` ` ], "etag": "BwWWja0YfJA=", "version": 3 `
        # **YAML example:**
        # bindings: - members: - user:mike@example.com - group:admins@example.com -
        # domain:google.com - serviceAccount:my-project-id@appspot.gserviceaccount.com
        # role: roles/resourcemanager.organizationAdmin - members: - user:eve@example.
        # com role: roles/resourcemanager.organizationViewer condition: title: expirable
        # access description: Does not grant access after Sep 2020 expression: request.
        # time < timestamp('2020-10-01T00:00:00.000Z') - etag: BwWWja0YfJA= - version: 3
        # For a description of IAM and its features, see the [IAM documentation](https://
        # cloud.google.com/iam/docs/).
        # Corresponds to the JSON property `policy`
        # @return [Google::Apis::ComputeAlpha::Policy]
        attr_accessor :policy
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @bindings = args[:bindings] if args.key?(:bindings)
          @etag = args[:etag] if args.key?(:etag)
          @policy = args[:policy] if args.key?(:policy)
        end
      end
    end
  end
end