code: @Override
      public ListPresetsResult listPresets(ListPresetsRequest request) {
          request = beforeClientExecution(request);
          return executeListPresets(request);
      }
docs: <p>
  The ListPresets operation gets a list of the default presets included with Elastic Transcoder and the presets
  that you've added in an AWS region.
  </p>
  
  @param listPresetsRequest
  The <code>ListPresetsRequest</code> structure.
  @return Result of the ListPresets operation returned by the service.
  @throws ValidationException
  One or more required parameter values were not provided in the request.
  @throws IncompatibleVersionException
  @throws AccessDeniedException
  General authentication failure. The request was not signed correctly.
  @throws InternalServiceException
  Elastic Transcoder encountered an unexpected exception while trying to fulfill the request.
  @sample AmazonElasticTranscoder.ListPresets