code: @Override
      public ListDeliveryStreamsResult listDeliveryStreams(ListDeliveryStreamsRequest request) {
          request = beforeClientExecution(request);
          return executeListDeliveryStreams(request);
      }
docs: <p>
  Lists your delivery streams in alphabetical order of their names.
  </p>
  <p>
  The number of delivery streams might be too large to return using a single call to
  <code>ListDeliveryStreams</code>. You can limit the number of delivery streams returned, using the
  <code>Limit</code> parameter. To determine whether there are more delivery streams to list, check the value of
  <code>HasMoreDeliveryStreams</code> in the output. If there are more delivery streams to list, you can request
  them by calling this operation again and setting the <code>ExclusiveStartDeliveryStreamName</code> parameter to
  the name of the last delivery stream returned in the last call.
  </p>
  
  @param listDeliveryStreamsRequest
  @return Result of the ListDeliveryStreams operation returned by the service.
  @sample AmazonKinesisFirehose.ListDeliveryStreams
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/firehose-2015-08-04/ListDeliveryStreams" target="_top">AWS
  API Documentation</a>