code: public <T> HttpResponseHandler<AmazonWebServiceResponse<T>> createResponseHandler(
              JsonOperationMetadata operationMetadata,
              Unmarshaller<T, JsonUnmarshallerContext> responseUnmarshaller) {
          return getSdkFactory().createResponseHandler(operationMetadata, responseUnmarshaller);
      }
docs: Returns the response handler to be used for handling a successful response.
  
  @param operationMetadata Additional context information about an operation to create the appropriate response handler.