/// <summary>
        /// Creates a <see cref="MessagesClient"/> which uses the specified call invoker for remote operations.
        /// </summary>
        /// <param name="callInvoker">
        /// The <see cref="grpccore::CallInvoker"/> for remote operations. Must not be null.
        /// </param>
        /// <param name="settings">Optional <see cref="MessagesSettings"/>.</param>
        /// <returns>The created <see cref="MessagesClient"/>.</returns>
        internal static MessagesClient Create(grpccore::CallInvoker callInvoker, MessagesSettings settings = null)
        {
            gax::GaxPreconditions.CheckNotNull(callInvoker, nameof(callInvoker));
            grpcinter::Interceptor interceptor = settings?.Interceptor;

            if (interceptor != null)
            {
                callInvoker = grpcinter::CallInvokerExtensions.Intercept(callInvoker, interceptor);
            }
            Messages.MessagesClient grpcClient = new Messages.MessagesClient(callInvoker);
            return(new MessagesClientImpl(grpcClient, settings));
        }
        /// <summary>
        /// Constructs a client wrapper for the Messages service, with the specified gRPC client and settings.
        /// </summary>
        /// <param name="grpcClient">The underlying gRPC client.</param>
        /// <param name="settings">The base <see cref="MessagesSettings"/> used within this client.</param>
        public MessagesClientImpl(Messages.MessagesClient grpcClient, MessagesSettings settings)
        {
            GrpcClient = grpcClient;
            MessagesSettings      effectiveSettings = settings ?? MessagesSettings.GetDefault();
            gaxgrpc::ClientHelper clientHelper      = new gaxgrpc::ClientHelper(effectiveSettings);

            _callCreateMessage = clientHelper.BuildApiCall <CreateMessageRequest, Message>(grpcClient.CreateMessageAsync, grpcClient.CreateMessage, effectiveSettings.CreateMessageSettings).WithGoogleRequestParam("parent", request => request.Parent);
            Modify_ApiCall(ref _callCreateMessage);
            Modify_CreateMessageApiCall(ref _callCreateMessage);
            _callGetMessage = clientHelper.BuildApiCall <GetMessageRequest, Message>(grpcClient.GetMessageAsync, grpcClient.GetMessage, effectiveSettings.GetMessageSettings).WithGoogleRequestParam("name", request => request.Name);
            Modify_ApiCall(ref _callGetMessage);
            Modify_GetMessageApiCall(ref _callGetMessage);
            _callListMessages = clientHelper.BuildApiCall <ListMessagesRequest, ListMessagesResponse>(grpcClient.ListMessagesAsync, grpcClient.ListMessages, effectiveSettings.ListMessagesSettings).WithGoogleRequestParam("parent", request => request.Parent);
            Modify_ApiCall(ref _callListMessages);
            Modify_ListMessagesApiCall(ref _callListMessages);
            OnConstruction(grpcClient, effectiveSettings, clientHelper);
        }
 partial void OnConstruction(Messages.MessagesClient grpcClient, MessagesSettings effectiveSettings, gaxgrpc::ClientHelper clientHelper);