diff --git a/api_names_out.yaml b/api_names_out.yaml
index e211f51fc..999c82cfe 100644
--- a/api_names_out.yaml
+++ b/api_names_out.yaml
@@ -86310,6 +86310,12 @@
 "/dialogflow:v2/GoogleCloudDialogflowV3alpha1ImportTestCasesResponse/names": names
 "/dialogflow:v2/GoogleCloudDialogflowV3alpha1ImportTestCasesResponse/names/name": name
 "/dialogflow:v2/GoogleCloudDialogflowV3alpha1RunTestCaseMetadata": google_cloud_dialogflow_v3alpha1_run_test_case_metadata
+"/dialogflow:v2/GoogleCloudKnowledgeV1alpha1OperationMetadata": google_cloud_knowledge_v1alpha1_operation_metadata
+"/dialogflow:v2/GoogleCloudKnowledgeV1alpha1OperationMetadata/errorCode": error_code
+"/dialogflow:v2/GoogleCloudKnowledgeV1alpha1OperationMetadata/errorCode/error_code": error_code
+"/dialogflow:v2/GoogleCloudKnowledgeV1alpha1OperationMetadata/message": message
+"/dialogflow:v2/GoogleCloudKnowledgeV1alpha1OperationMetadata/message/message": message
+"/dialogflow:v2/GoogleCloudKnowledgeV1alpha1OperationMetadata/state": state
 "/dialogflow:v2/GoogleLongrunningListOperationsResponse": google_longrunning_list_operations_response
 "/dialogflow:v2/GoogleLongrunningListOperationsResponse/nextPageToken": next_page_token
 "/dialogflow:v2/GoogleLongrunningListOperationsResponse/operations": operations
diff --git a/generated/google/apis/dialogflow_v2.rb b/generated/google/apis/dialogflow_v2.rb
index 198e8887c..3f155bb7b 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 = '20201017'
+      REVISION = '20201028'
 
       # 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 c6e002d63..dac6895ee 100644
--- a/generated/google/apis/dialogflow_v2/classes.rb
+++ b/generated/google/apis/dialogflow_v2/classes.rb
@@ -7332,16 +7332,34 @@ module Google
         end
       end
       
-      # Metadata returned for the TestCases.RunTestCase long running operation.
-      class GoogleCloudDialogflowV3alpha1RunTestCaseMetadata
+      # 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
       
diff --git a/generated/google/apis/dialogflow_v2/representations.rb b/generated/google/apis/dialogflow_v2/representations.rb
index e0ea2ef46..8f522e18d 100644
--- a/generated/google/apis/dialogflow_v2/representations.rb
+++ b/generated/google/apis/dialogflow_v2/representations.rb
@@ -1174,7 +1174,7 @@ module Google
         include Google::Apis::Core::JsonObjectSupport
       end
       
-      class GoogleCloudDialogflowV3alpha1RunTestCaseMetadata
+      class GoogleCloudKnowledgeV1alpha1OperationMetadata
         class Representation < Google::Apis::Core::JsonRepresentation; end
       
         include Google::Apis::Core::JsonObjectSupport
@@ -3196,9 +3196,12 @@ module Google
         end
       end
       
-      class GoogleCloudDialogflowV3alpha1RunTestCaseMetadata
+      class GoogleCloudKnowledgeV1alpha1OperationMetadata
         # @private
         class Representation < Google::Apis::Core::JsonRepresentation
+          collection :error_code, as: 'errorCode'
+          collection :message, as: 'message'
+          property :state, as: 'state'
         end
       end
       
diff --git a/generated/google/apis/dialogflow_v2/synth.metadata b/generated/google/apis/dialogflow_v2/synth.metadata
index 8ba18e27d..88a73b724 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": "cb0c5bf94e2b1c915107eec83041d4409c900155"
+        "sha": "768d3937e6c487b755846b65267c20674e52a10c"
       }
     }
   ]