/// <summary>
        /// Updates the Challenge-Handshake Authentication Protocol (CHAP) credentials for a specified
        /// iSCSI target. By default, a gateway does not have CHAP enabled; however, for added
        /// security, you might use it.
        /// 
        ///  <important> 
        /// <para>
        /// When you update CHAP credentials, all existing connections on the target are closed
        /// and initiators must reconnect with the new credentials.
        /// </para>
        ///  </important>
        /// </summary>
        /// <param name="request">Container for the necessary parameters to execute the UpdateChapCredentials service method.</param>
        /// 
        /// <returns>The response from the UpdateChapCredentials service method, as returned by StorageGateway.</returns>
        /// <exception cref="Amazon.StorageGateway.Model.InternalServerErrorException">
        /// An internal server error has occurred during the request. For more information, see
        /// the error and message fields.
        /// </exception>
        /// <exception cref="Amazon.StorageGateway.Model.InvalidGatewayRequestException">
        /// An exception occurred because an invalid gateway request was issued to the service.
        /// For more information, see the error and message fields.
        /// </exception>
        public UpdateChapCredentialsResponse UpdateChapCredentials(UpdateChapCredentialsRequest request)
        {
            var marshaller = new UpdateChapCredentialsRequestMarshaller();
            var unmarshaller = UpdateChapCredentialsResponseUnmarshaller.Instance;

            return Invoke<UpdateChapCredentialsRequest,UpdateChapCredentialsResponse>(request, marshaller, unmarshaller);
        }
        /// <summary>
        /// Initiates the asynchronous execution of the UpdateChapCredentials operation.
        /// </summary>
        /// 
        /// <param name="request">Container for the necessary parameters to execute the UpdateChapCredentials operation on AmazonStorageGatewayClient.</param>
        /// <param name="callback">An AsyncCallback delegate that is invoked when the operation completes.</param>
        /// <param name="state">A user-defined state object that is passed to the callback procedure. Retrieve this object from within the callback
        ///          procedure using the AsyncState property.</param>
        /// 
        /// <returns>An IAsyncResult that can be used to poll or wait for results, or both; this value is also needed when invoking EndUpdateChapCredentials
        ///         operation.</returns>
        public IAsyncResult BeginUpdateChapCredentials(UpdateChapCredentialsRequest request, AsyncCallback callback, object state)
        {
            var marshaller = new UpdateChapCredentialsRequestMarshaller();
            var unmarshaller = UpdateChapCredentialsResponseUnmarshaller.Instance;

            return BeginInvoke<UpdateChapCredentialsRequest>(request, marshaller, unmarshaller,
                callback, state);
        }
        /// <summary>
        /// Initiates the asynchronous execution of the UpdateChapCredentials operation.
        /// <seealso cref="Amazon.StorageGateway.IAmazonStorageGateway.UpdateChapCredentials"/>
        /// </summary>
        /// 
        /// <param name="request">Container for the necessary parameters to execute the UpdateChapCredentials operation.</param>
        /// <param name="cancellationToken">
        ///     A cancellation token that can be used by other objects or threads to receive notice of cancellation.
        /// </param>
        /// <returns>The task object representing the asynchronous operation.</returns>
		public Task<UpdateChapCredentialsResponse> UpdateChapCredentialsAsync(UpdateChapCredentialsRequest request, CancellationToken cancellationToken = default(CancellationToken))
        {
            var marshaller = new UpdateChapCredentialsRequestMarshaller();
            var unmarshaller = UpdateChapCredentialsResponseUnmarshaller.GetInstance();
            return Invoke<IRequest, UpdateChapCredentialsRequest, UpdateChapCredentialsResponse>(request, marshaller, unmarshaller, signer, cancellationToken);
        }
        public void UpdateChapCredentialsMarshallTest()
        {
            var request = InstantiateClassGenerator.Execute<UpdateChapCredentialsRequest>();
            var marshaller = new UpdateChapCredentialsRequestMarshaller();

            var internalRequest = marshaller.Marshall(request);
            var jsonRequest = UTF8Encoding.UTF8.GetString(internalRequest.Content);                        
            Comparer.CompareObjectToJson<UpdateChapCredentialsRequest>(request,jsonRequest);

            var webResponse = new WebResponseData
            {
                Headers = {
                    {"x-amzn-RequestId", Guid.NewGuid().ToString()},
                    {"x-amz-crc32","0"}
                }
            };
            var jsonResponse = new JsonSampleGenerator(service_model, service_model.FindOperation("UpdateChapCredentials").ResponseStructure).Execute();
            webResponse.Headers.Add("Content-Length", UTF8Encoding.UTF8.GetBytes(jsonResponse).Length.ToString());
            UnmarshallerContext context = new JsonUnmarshallerContext(Utils.CreateStreamFromString(jsonResponse), false, webResponse);
            var response = UpdateChapCredentialsResponseUnmarshaller.Instance.Unmarshall(context)
                as UpdateChapCredentialsResponse;
            InstantiateClassGenerator.ValidateObjectFullyInstantiated(response);
        }
 IAsyncResult invokeUpdateChapCredentials(UpdateChapCredentialsRequest updateChapCredentialsRequest, AsyncCallback callback, object state, bool synchronized)
 {
     IRequest irequest = new UpdateChapCredentialsRequestMarshaller().Marshall(updateChapCredentialsRequest);
     var unmarshaller = UpdateChapCredentialsResponseUnmarshaller.GetInstance();
     AsyncResult result = new AsyncResult(irequest, callback, state, synchronized, signer, unmarshaller);
     Invoke(result);
     return result;
 }
        /// <summary>
        /// Initiates the asynchronous execution of the UpdateChapCredentials operation.
        /// </summary>
        /// 
        /// <param name="request">Container for the necessary parameters to execute the UpdateChapCredentials operation.</param>
        /// <param name="cancellationToken">
        ///     A cancellation token that can be used by other objects or threads to receive notice of cancellation.
        /// </param>
        /// <returns>The task object representing the asynchronous operation.</returns>
        public Task<UpdateChapCredentialsResponse> UpdateChapCredentialsAsync(UpdateChapCredentialsRequest request, System.Threading.CancellationToken cancellationToken = default(CancellationToken))
        {
            var marshaller = new UpdateChapCredentialsRequestMarshaller();
            var unmarshaller = UpdateChapCredentialsResponseUnmarshaller.Instance;

            return InvokeAsync<UpdateChapCredentialsRequest,UpdateChapCredentialsResponse>(request, marshaller, 
                unmarshaller, cancellationToken);
        }
        /// <summary>
        /// <para>This operation updates the Challenge-Handshake Authentication Protocol (CHAP) credentials for a specified iSCSI target. By default, a
        /// gateway does not have CHAP enabled; however, for added security, you might use it.</para> <para><b>IMPORTANT:</b> When you update CHAP
        /// credentials, all existing connections on the target are closed and initiators must reconnect with the new credentials. </para>
        /// </summary>
        /// 
        /// <param name="updateChapCredentialsRequest">Container for the necessary parameters to execute the UpdateChapCredentials service method on
        /// AmazonStorageGateway.</param>
        /// 
        /// <returns>The response from the UpdateChapCredentials service method, as returned by AmazonStorageGateway.</returns>
        /// 
        /// <exception cref="T:Amazon.StorageGateway.Model.InternalServerErrorException" />
        /// <exception cref="T:Amazon.StorageGateway.Model.InvalidGatewayRequestException" />
        /// <param name="cancellationToken">
        ///     A cancellation token that can be used by other objects or threads to receive notice of cancellation.
        /// </param>
		public async Task<UpdateChapCredentialsResponse> UpdateChapCredentialsAsync(UpdateChapCredentialsRequest updateChapCredentialsRequest, CancellationToken cancellationToken = default(CancellationToken))
        {
            var marshaller = new UpdateChapCredentialsRequestMarshaller();
            var unmarshaller = UpdateChapCredentialsResponseUnmarshaller.GetInstance();
            var response = await Invoke<IRequest, UpdateChapCredentialsRequest, UpdateChapCredentialsResponse>(updateChapCredentialsRequest, marshaller, unmarshaller, signer, cancellationToken)
                .ConfigureAwait(continueOnCapturedContext: false);
            return response;
        }