diff --git a/generated/google/apis/iap_v1beta1.rb b/generated/google/apis/iap_v1beta1.rb
index d3db33804..d95f81703 100644
--- a/generated/google/apis/iap_v1beta1.rb
+++ b/generated/google/apis/iap_v1beta1.rb
@@ -25,7 +25,7 @@ module Google
     # @see https://cloud.google.com/iap
     module IapV1beta1
       VERSION = 'V1beta1'
-      REVISION = '20201030'
+      REVISION = '20201204'
 
       # 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/iap_v1beta1/classes.rb b/generated/google/apis/iap_v1beta1/classes.rb
index 47d7415eb..dfb6a256c 100644
--- a/generated/google/apis/iap_v1beta1/classes.rb
+++ b/generated/google/apis/iap_v1beta1/classes.rb
@@ -26,11 +26,6 @@ module Google
       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:
@@ -92,7 +87,6 @@ module Google
       
         # 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)
diff --git a/generated/google/apis/iap_v1beta1/representations.rb b/generated/google/apis/iap_v1beta1/representations.rb
index ce22dd7de..3bc4ea0c1 100644
--- a/generated/google/apis/iap_v1beta1/representations.rb
+++ b/generated/google/apis/iap_v1beta1/representations.rb
@@ -73,7 +73,6 @@ module Google
       class Binding
         # @private
         class Representation < Google::Apis::Core::JsonRepresentation
-          property :binding_id, as: 'bindingId'
           property :condition, as: 'condition', class: Google::Apis::IapV1beta1::Expr, decorator: Google::Apis::IapV1beta1::Expr::Representation
       
           collection :members, as: 'members'
diff --git a/generated/google/apis/iap_v1beta1/synth.metadata b/generated/google/apis/iap_v1beta1/synth.metadata
index e4db80520..df76adfbd 100644
--- a/generated/google/apis/iap_v1beta1/synth.metadata
+++ b/generated/google/apis/iap_v1beta1/synth.metadata
@@ -4,7 +4,7 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/google-api-ruby-client.git",
-        "sha": "9a346a623e5622b475bc09353178499abd8d6900"
+        "sha": "f38fcad7556907659405ce533a277bca03e40fb9"
       }
     }
   ]