code: @Override
      public DescribeSubscriptionFiltersResult describeSubscriptionFilters(DescribeSubscriptionFiltersRequest request) {
          request = beforeClientExecution(request);
          return executeDescribeSubscriptionFilters(request);
      }
docs: <p>
  Lists the subscription filters for the specified log group. You can list all the subscription filters or filter
  the results by prefix. The results are ASCII-sorted by filter name.
  </p>
  
  @param describeSubscriptionFiltersRequest
  @return Result of the DescribeSubscriptionFilters operation returned by the service.
  @throws InvalidParameterException
  A parameter is specified incorrectly.
  @throws ResourceNotFoundException
  The specified resource does not exist.
  @throws ServiceUnavailableException
  The service cannot complete the request.
  @sample AWSLogs.DescribeSubscriptionFilters
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/logs-2014-03-28/DescribeSubscriptionFilters"
  target="_top">AWS API Documentation</a>