public void AddPermissionMarshallTest()
        {
            var operation = service_model.FindOperation("AddPermission");

            var request = InstantiateClassGenerator.Execute<AddPermissionRequest>();
            var marshaller = new AddPermissionRequestMarshaller();

            var internalRequest = marshaller.Marshall(request);
            RequestValidator.Validate("AddPermission", request, internalRequest, service_model);            

            var webResponse = new WebResponseData
            {
                Headers = {
                    {"x-amzn-RequestId", Guid.NewGuid().ToString()},
                    {"x-amz-crc32","0"}
                }
            };

            var payloadResponse = new JsonSampleGenerator(service_model, operation.ResponseStructure).Execute();
            webResponse.Headers.Add("Content-Length", UTF8Encoding.UTF8.GetBytes(payloadResponse).Length.ToString());
            var context = new JsonUnmarshallerContext(Utils.CreateStreamFromString(payloadResponse), false, webResponse);
            ResponseUnmarshaller unmarshaller = AddPermissionResponseUnmarshaller.Instance;
            var response = unmarshaller.Unmarshall(context)
                as AddPermissionResponse;   
            InstantiateClassGenerator.ValidateObjectFullyInstantiated(response);               
        }

        public void AddPermissionMarshallTest()
        {
            var operation = service_model.FindOperation("AddPermission");

            var request = InstantiateClassGenerator.Execute<AddPermissionRequest>();
            var marshaller = new AddPermissionRequestMarshaller();
            var internalRequest = marshaller.Marshall(request);
            var validator = new AWSQueryValidator(internalRequest.Parameters, request, service_model, operation);
            validator.Validate();


        }

        /// <summary>
        /// <para>The AddPermission action adds a permission to a queue for a specific <a href="http://docs.aws.amazon.com/AWSSimpleQueueService/latest/APIReference/Glossary.html">principal</a> .
        /// This allows for sharing access to the queue.</para> <para>When you create a queue, you have full control access rights for the queue.
        /// Only you (as owner of the queue) can grant or deny permissions to the queue. For more information about these permissions, see <a href="http://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/?acp-overview.html">Shared Queues</a> in the Amazon SQS
        /// Developer Guide.</para> <para> <c>AddPermission</c> writes an SQS-generated policy. If you want to write your own policy, use
        /// SetQueueAttributes to upload your policy. For more information about writing your own policy, see <a href="http://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/?AccessPolicyLanguage.html">Appendix: The Access Policy
        /// Language</a> in the Amazon SQS Developer Guide.</para>
        /// </summary>
        /// 
        /// <param name="addPermissionRequest">Container for the necessary parameters to execute the AddPermission service method on AmazonSQS.</param>
        /// 
        /// <exception cref="T:Amazon.SQS.Model.OverLimitException" />
        /// <param name="cancellationToken">
        ///     A cancellation token that can be used by other objects or threads to receive notice of cancellation.
        /// </param>
		public Task<AddPermissionResponse> AddPermissionAsync(AddPermissionRequest addPermissionRequest, CancellationToken cancellationToken = default(CancellationToken))
        {
            var marshaller = new AddPermissionRequestMarshaller();
            var unmarshaller = AddPermissionResponseUnmarshaller.GetInstance();
            return Invoke<IRequest, AddPermissionRequest, AddPermissionResponse>(addPermissionRequest, marshaller, unmarshaller, signer, cancellationToken);
        }

        /// <summary>
        /// Initiates the asynchronous execution of the AddPermission operation.
        /// </summary>
        /// 
        /// <param name="request">Container for the necessary parameters to execute the AddPermission 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<AddPermissionResponse> AddPermissionAsync(AddPermissionRequest request, System.Threading.CancellationToken cancellationToken = default(CancellationToken))
        {
            var marshaller = new AddPermissionRequestMarshaller();
            var unmarshaller = AddPermissionResponseUnmarshaller.Instance;

            return InvokeAsync<AddPermissionRequest,AddPermissionResponse>(request, marshaller, 
                unmarshaller, cancellationToken);
        }

        internal AddPermissionResponse AddPermission(AddPermissionRequest request)
        {
            var marshaller = new AddPermissionRequestMarshaller();
            var unmarshaller = AddPermissionResponseUnmarshaller.Instance;

            return Invoke<AddPermissionRequest,AddPermissionResponse>(request, marshaller, unmarshaller);
        }

        /// <summary>
        /// Initiates the asynchronous execution of the AddPermission operation.
        /// </summary>
        /// 
        /// <param name="request">Container for the necessary parameters to execute the AddPermission operation on AmazonSimpleNotificationServiceClient.</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 EndAddPermission
        ///         operation.</returns>
        public IAsyncResult BeginAddPermission(AddPermissionRequest request, AsyncCallback callback, object state)
        {
            var marshaller = new AddPermissionRequestMarshaller();
            var unmarshaller = AddPermissionResponseUnmarshaller.Instance;

            return BeginInvoke<AddPermissionRequest>(request, marshaller, unmarshaller,
                callback, state);
        }

        /// <summary>
        /// Initiates the asynchronous execution of the AddPermission operation.
        /// <seealso cref="Amazon.SQS.IAmazonSQS.AddPermission"/>
        /// </summary>
        /// 
        /// <param name="request">Container for the necessary parameters to execute the AddPermission 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 async Task<AddPermissionResponse> AddPermissionAsync(AddPermissionRequest request, CancellationToken cancellationToken = default(CancellationToken))
        {
            var marshaller = new AddPermissionRequestMarshaller();
            var unmarshaller = AddPermissionResponseUnmarshaller.GetInstance();
            var response = await Invoke<IRequest, AddPermissionRequest, AddPermissionResponse>(request, marshaller, unmarshaller, signer, cancellationToken)
                .ConfigureAwait(continueOnCapturedContext: false);
            return response;
        }

 IAsyncResult invokeAddPermission(AddPermissionRequest addPermissionRequest, AsyncCallback callback, object state, bool synchronized)
 {
     IRequest irequest = new AddPermissionRequestMarshaller().Marshall(addPermissionRequest);
     var unmarshaller = AddPermissionResponseUnmarshaller.GetInstance();
     AsyncResult result = new AsyncResult(irequest, callback, state, synchronized, signer, unmarshaller);
     Invoke(result);
     return result;
 }

        IAsyncResult invokeAddPermission(AddPermissionRequest request, AsyncCallback callback, object state, bool synchronized)
        {
            var marshaller = new AddPermissionRequestMarshaller();
            var unmarshaller = AddPermissionResponseUnmarshaller.Instance;

            return Invoke(request, callback, state, synchronized, marshaller, unmarshaller, signer);
        }