code: @Override
      public UpdateConditionalForwarderResult updateConditionalForwarder(UpdateConditionalForwarderRequest request) {
          request = beforeClientExecution(request);
          return executeUpdateConditionalForwarder(request);
      }
docs: <p>
  Updates a conditional forwarder that has been set up for your AWS directory.
  </p>
  
  @param updateConditionalForwarderRequest
  Updates a conditional forwarder.
  @return Result of the UpdateConditionalForwarder operation returned by the service.
  @throws EntityDoesNotExistException
  The specified entity could not be found.
  @throws DirectoryUnavailableException
  The specified directory is unavailable or could not be found.
  @throws InvalidParameterException
  One or more parameters are not valid.
  @throws UnsupportedOperationException
  The operation is not supported.
  @throws ClientException
  A client exception has occurred.
  @throws ServiceException
  An exception has occurred in AWS Directory Service.
  @sample AWSDirectoryService.UpdateConditionalForwarder
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/ds-2015-04-16/UpdateConditionalForwarder" target="_top">AWS
  API Documentation</a>