code: @Override
      public DescribeTaskResult describeTask(DescribeTaskRequest request) {
          request = beforeClientExecution(request);
          return executeDescribeTask(request);
      }
docs: <p>
  Returns metadata about a task.
  </p>
  
  @param describeTaskRequest
  DescribeTaskRequest
  @return Result of the DescribeTask operation returned by the service.
  @throws InvalidRequestException
  This exception is thrown when the client submits a malformed request.
  @sample AWSDataSync.DescribeTask
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/datasync-2018-11-09/DescribeTask" target="_top">AWS API
  Documentation</a>