public void AddTagsMarshallTest()
        {
            var operation = service_model.FindOperation("AddTags");

            var request = InstantiateClassGenerator.Execute<AddTagsRequest>();
            var marshaller = new AddTagsRequestMarshaller();

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

        }

        public void AddTagsMarshallTest()
        {
            var operation = service_model.FindOperation("AddTags");

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


            var payloadResponse = new XmlSampleGenerator(service_model, operation).Execute();
            var context = new XmlUnmarshallerContext(Utils.CreateStreamFromString(payloadResponse), false, null);
            var response = AddTagsResponseUnmarshaller.Instance.Unmarshall(context)
                as AddTagsResponse;   
            InstantiateClassGenerator.ValidateObjectFullyInstantiated(response);       
        }

        public void AddTagsMarshallTest()
        {
            var request = InstantiateClassGenerator.Execute<AddTagsRequest>();
            var marshaller = new AddTagsRequestMarshaller();

            var internalRequest = marshaller.Marshall(request);
            var jsonRequest = UTF8Encoding.UTF8.GetString(internalRequest.Content);                        
            Comparer.CompareObjectToJson<AddTagsRequest>(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("AddTags").ResponseStructure).Execute();
            webResponse.Headers.Add("Content-Length", UTF8Encoding.UTF8.GetBytes(jsonResponse).Length.ToString());
            UnmarshallerContext context = new JsonUnmarshallerContext(Utils.CreateStreamFromString(jsonResponse), false, webResponse);
            var response = AddTagsResponseUnmarshaller.Instance.Unmarshall(context)
                as AddTagsResponse;
            InstantiateClassGenerator.ValidateObjectFullyInstantiated(response);
        }

        /// <summary>
        /// Initiates the asynchronous execution of the AddTags operation.
        /// </summary>
        /// 
        /// <param name="request">Container for the necessary parameters to execute the AddTags 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<AddTagsResponse> AddTagsAsync(AddTagsRequest request, System.Threading.CancellationToken cancellationToken = default(CancellationToken))
        {
            var marshaller = new AddTagsRequestMarshaller();
            var unmarshaller = AddTagsResponseUnmarshaller.Instance;

            return InvokeAsync<AddTagsRequest,AddTagsResponse>(request, marshaller, 
                unmarshaller, cancellationToken);
        }

        internal AddTagsResponse AddTags(AddTagsRequest request)
        {
            var marshaller = new AddTagsRequestMarshaller();
            var unmarshaller = AddTagsResponseUnmarshaller.Instance;

            return Invoke<AddTagsRequest,AddTagsResponse>(request, marshaller, unmarshaller);
        }

        /// <summary>
        /// Initiates the asynchronous execution of the AddTags operation.
        /// <seealso cref="Amazon.ElasticMapReduce.IAmazonElasticMapReduce.AddTags"/>
        /// </summary>
        /// 
        /// <param name="request">Container for the necessary parameters to execute the AddTags 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<AddTagsResponse> AddTagsAsync(AddTagsRequest request, CancellationToken cancellationToken = default(CancellationToken))
        {
            var marshaller = new AddTagsRequestMarshaller();
            var unmarshaller = AddTagsResponseUnmarshaller.GetInstance();
            return Invoke<IRequest, AddTagsRequest, AddTagsResponse>(request, marshaller, unmarshaller, signer, cancellationToken);
        }

        /// <summary>
        /// Initiates the asynchronous execution of the AddTags operation.
        /// </summary>
        /// 
        /// <param name="request">Container for the necessary parameters to execute the AddTags operation on AmazonCloudTrailClient.</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 EndAddTags
        ///         operation.</returns>
        public IAsyncResult BeginAddTags(AddTagsRequest request, AsyncCallback callback, object state)
        {
            var marshaller = new AddTagsRequestMarshaller();
            var unmarshaller = AddTagsResponseUnmarshaller.Instance;

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

 IAsyncResult invokeAddTags(AddTagsRequest addTagsRequest, AsyncCallback callback, object state, bool synchronized)
 {
     IRequest irequest = new AddTagsRequestMarshaller().Marshall(addTagsRequest);
     var unmarshaller = AddTagsResponseUnmarshaller.GetInstance();
     AsyncResult result = new AsyncResult(irequest, callback, state, synchronized, signer, unmarshaller);
     Invoke(result);
     return result;
 }

        IAsyncResult invokeAddTags(AddTagsRequest request, AsyncCallback callback, object state, bool synchronized)
        {
            var marshaller = new AddTagsRequestMarshaller();
            var unmarshaller = AddTagsResponseUnmarshaller.Instance;

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