diff --git a/generated/google/apis/dialogflow_v2.rb b/generated/google/apis/dialogflow_v2.rb
index 3f155bb7b..1b91c3322 100644
--- a/generated/google/apis/dialogflow_v2.rb
+++ b/generated/google/apis/dialogflow_v2.rb
@@ -26,7 +26,7 @@ module Google
     # @see https://cloud.google.com/dialogflow/
     module DialogflowV2
       VERSION = 'V2'
-      REVISION = '20201028'
+      REVISION = '20201109'
 
       # View and manage your data across Google Cloud Platform services
       AUTH_CLOUD_PLATFORM = 'https://www.googleapis.com/auth/cloud-platform'
diff --git a/generated/google/apis/dialogflow_v2/classes.rb b/generated/google/apis/dialogflow_v2/classes.rb
index dac6895ee..0b08ea640 100644
--- a/generated/google/apis/dialogflow_v2/classes.rb
+++ b/generated/google/apis/dialogflow_v2/classes.rb
@@ -7332,37 +7332,6 @@ module Google
         end
       end
       
-      # Metadata in google::longrunning::Operation.
-      class GoogleCloudKnowledgeV1alpha1OperationMetadata
-        include Google::Apis::Core::Hashable
-      
-        # The error codes from Manifold endpoints' last failures.
-        # Corresponds to the JSON property `errorCode`
-        # @return [Array<Fixnum>]
-        attr_accessor :error_code
-      
-        # The failure messages from Manifold endpoints' last failures.
-        # Corresponds to the JSON property `message`
-        # @return [Array<String>]
-        attr_accessor :message
-      
-        # Required. The current state of this operation.
-        # 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)
-          @error_code = args[:error_code] if args.key?(:error_code)
-          @message = args[:message] if args.key?(:message)
-          @state = args[:state] if args.key?(:state)
-        end
-      end
-      
       # The response message for Operations.ListOperations.
       class GoogleLongrunningListOperationsResponse
         include Google::Apis::Core::Hashable
diff --git a/generated/google/apis/dialogflow_v2/representations.rb b/generated/google/apis/dialogflow_v2/representations.rb
index 8f522e18d..909fe2f0d 100644
--- a/generated/google/apis/dialogflow_v2/representations.rb
+++ b/generated/google/apis/dialogflow_v2/representations.rb
@@ -1174,12 +1174,6 @@ module Google
         include Google::Apis::Core::JsonObjectSupport
       end
       
-      class GoogleCloudKnowledgeV1alpha1OperationMetadata
-        class Representation < Google::Apis::Core::JsonRepresentation; end
-      
-        include Google::Apis::Core::JsonObjectSupport
-      end
-      
       class GoogleLongrunningListOperationsResponse
         class Representation < Google::Apis::Core::JsonRepresentation; end
       
@@ -3196,15 +3190,6 @@ module Google
         end
       end
       
-      class GoogleCloudKnowledgeV1alpha1OperationMetadata
-        # @private
-        class Representation < Google::Apis::Core::JsonRepresentation
-          collection :error_code, as: 'errorCode'
-          collection :message, as: 'message'
-          property :state, as: 'state'
-        end
-      end
-      
       class GoogleLongrunningListOperationsResponse
         # @private
         class Representation < Google::Apis::Core::JsonRepresentation
diff --git a/generated/google/apis/dialogflow_v2/synth.metadata b/generated/google/apis/dialogflow_v2/synth.metadata
index 88a73b724..7f5122644 100644
--- a/generated/google/apis/dialogflow_v2/synth.metadata
+++ b/generated/google/apis/dialogflow_v2/synth.metadata
@@ -4,7 +4,7 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/google-api-ruby-client.git",
-        "sha": "768d3937e6c487b755846b65267c20674e52a10c"
+        "sha": "e317a0f5e6109142be13031fa9e9baee4d2f897e"
       }
     }
   ]