code: @Override
      public DescribeDeliveryStreamResult describeDeliveryStream(DescribeDeliveryStreamRequest request) {
          request = beforeClientExecution(request);
          return executeDescribeDeliveryStream(request);
      }
docs: <p>
  Describes the specified delivery stream and gets the status. For example, after your delivery stream is created,
  call <code>DescribeDeliveryStream</code> to see whether the delivery stream is <code>ACTIVE</code> and therefore
  ready for data to be sent to it.
  </p>
  
  @param describeDeliveryStreamRequest
  @return Result of the DescribeDeliveryStream operation returned by the service.
  @throws ResourceNotFoundException
  The specified resource could not be found.
  @sample AmazonKinesisFirehose.DescribeDeliveryStream
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/firehose-2015-08-04/DescribeDeliveryStream"
  target="_top">AWS API Documentation</a>