/**
  * @access protected
  * @param  \EE_Message $message
  * @return \EE_Message
  * @throws \EE_Error
  */
 protected function _set_messenger(EE_Message $message)
 {
     $messenger = $this->_message_resource_manager->get_messenger($message->messenger());
     if ($messenger instanceof EE_messenger) {
         $message->set_messenger_object($messenger);
     }
     return $message;
 }