public async stt::Task UpdateKeyRequestObjectAsync()
        {
            moq::Mock <RecaptchaEnterpriseServiceV1Beta1.RecaptchaEnterpriseServiceV1Beta1Client> mockGrpcClient = new moq::Mock <RecaptchaEnterpriseServiceV1Beta1.RecaptchaEnterpriseServiceV1Beta1Client>(moq::MockBehavior.Strict);
            UpdateKeyRequest request = new UpdateKeyRequest
            {
                Key        = new Key(),
                UpdateMask = new wkt::FieldMask(),
            };
            Key expectedResponse = new Key
            {
                KeyName         = KeyName.FromProjectKey("[PROJECT]", "[KEY]"),
                DisplayName     = "display_name137f65c2",
                WebSettings     = new WebKeySettings(),
                AndroidSettings = new AndroidKeySettings(),
                IosSettings     = new IOSKeySettings(),
            };

            mockGrpcClient.Setup(x => x.UpdateKeyAsync(request, moq::It.IsAny <grpccore::CallOptions>())).Returns(new grpccore::AsyncUnaryCall <Key>(stt::Task.FromResult(expectedResponse), null, null, null, null));
            RecaptchaEnterpriseServiceV1Beta1Client client = new RecaptchaEnterpriseServiceV1Beta1ClientImpl(mockGrpcClient.Object, null);
            Key responseCallSettings = await client.UpdateKeyAsync(request, gaxgrpc::CallSettings.FromCancellationToken(st::CancellationToken.None));

            xunit::Assert.Same(expectedResponse, responseCallSettings);
            Key responseCancellationToken = await client.UpdateKeyAsync(request, st::CancellationToken.None);

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