code: @Override
      public DescribeTrainingJobResult describeTrainingJob(DescribeTrainingJobRequest request) {
          request = beforeClientExecution(request);
          return executeDescribeTrainingJob(request);
      }
docs: <p>
  Returns information about a training job.
  </p>
  
  @param describeTrainingJobRequest
  @return Result of the DescribeTrainingJob operation returned by the service.
  @throws ResourceNotFoundException
  Resource being access is not found.
  @sample AmazonSageMaker.DescribeTrainingJob
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/sagemaker-2017-07-24/DescribeTrainingJob" target="_top">AWS
  API Documentation</a>