public async stt::Task TestIamPermissionsAsync()
        {
            moq::Mock <ServiceAttachments.ServiceAttachmentsClient> mockGrpcClient = new moq::Mock <ServiceAttachments.ServiceAttachmentsClient>(moq::MockBehavior.Strict);

            mockGrpcClient.Setup(x => x.CreateOperationsClientForRegionOperations()).Returns(new moq::Mock <lro::Operations.OperationsClient>().Object);
            TestIamPermissionsServiceAttachmentRequest request = new TestIamPermissionsServiceAttachmentRequest
            {
                Region   = "regionedb20d96",
                Resource = "resource164eab96",
                Project  = "projectaa6ff846",
                TestPermissionsRequestResource = new TestPermissionsRequest(),
            };
            TestPermissionsResponse expectedResponse = new TestPermissionsResponse
            {
                Permissions =
                {
                    "permissions535a2741",
                },
            };

            mockGrpcClient.Setup(x => x.TestIamPermissionsAsync(request, moq::It.IsAny <grpccore::CallOptions>())).Returns(new grpccore::AsyncUnaryCall <TestPermissionsResponse>(stt::Task.FromResult(expectedResponse), null, null, null, null));
            ServiceAttachmentsClient client = new ServiceAttachmentsClientImpl(mockGrpcClient.Object, null);
            TestPermissionsResponse  responseCallSettings = await client.TestIamPermissionsAsync(request.Project, request.Region, request.Resource, request.TestPermissionsRequestResource, gaxgrpc::CallSettings.FromCancellationToken(st::CancellationToken.None));

            xunit::Assert.Same(expectedResponse, responseCallSettings);
            TestPermissionsResponse responseCancellationToken = await client.TestIamPermissionsAsync(request.Project, request.Region, request.Resource, request.TestPermissionsRequestResource, st::CancellationToken.None);

            xunit::Assert.Same(expectedResponse, responseCancellationToken);
            mockGrpcClient.VerifyAll();
        }
        public void TestIamPermissions()
        {
            moq::Mock <ServiceAttachments.ServiceAttachmentsClient> mockGrpcClient = new moq::Mock <ServiceAttachments.ServiceAttachmentsClient>(moq::MockBehavior.Strict);

            mockGrpcClient.Setup(x => x.CreateOperationsClientForRegionOperations()).Returns(new moq::Mock <lro::Operations.OperationsClient>().Object);
            TestIamPermissionsServiceAttachmentRequest request = new TestIamPermissionsServiceAttachmentRequest
            {
                Region   = "regionedb20d96",
                Resource = "resource164eab96",
                Project  = "projectaa6ff846",
                TestPermissionsRequestResource = new TestPermissionsRequest(),
            };
            TestPermissionsResponse expectedResponse = new TestPermissionsResponse
            {
                Permissions =
                {
                    "permissions535a2741",
                },
            };

            mockGrpcClient.Setup(x => x.TestIamPermissions(request, moq::It.IsAny <grpccore::CallOptions>())).Returns(expectedResponse);
            ServiceAttachmentsClient client   = new ServiceAttachmentsClientImpl(mockGrpcClient.Object, null);
            TestPermissionsResponse  response = client.TestIamPermissions(request.Project, request.Region, request.Resource, request.TestPermissionsRequestResource);

            xunit::Assert.Same(expectedResponse, response);
            mockGrpcClient.VerifyAll();
        }