public void TestInvokeAuthorizerMarshallTest()
        {
            var operation = service_model.FindOperation("TestInvokeAuthorizer");

            var request = InstantiateClassGenerator.Execute<TestInvokeAuthorizerRequest>();
            var marshaller = new TestInvokeAuthorizerRequestMarshaller();

            var internalRequest = marshaller.Marshall(request);
            RequestValidator.Validate("TestInvokeAuthorizer", 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 = TestInvokeAuthorizerResponseUnmarshaller.Instance;
            var response = unmarshaller.Unmarshall(context)
                as TestInvokeAuthorizerResponse;   
            InstantiateClassGenerator.ValidateObjectFullyInstantiated(response);               
        }