code: def on_event(self, event):
          
          if event.event not in TWITTER_NON_TWEET_EVENTS:
              logging.warning(u'Received unknown twitter event {event}'.format(event=event.event))
              return
  
          logging.info(u'Received event {event}'.format(event=event.event))
  
          for handler in self.handlers:
              handler.on_event(event)
docs: Callback to receive events from :class:`~responsebot.responsebot_stream.ResponseBotStream`. Tries to forward the
          received event to registered handlers.
  
          :param event: The received event
          :type event: :class:`~responsebot.models.Event`
          error from a custom handler