code: def event_later(self, delay, data_tuple):
          
          return self._base.event_later(delay, self.make_event_data(*data_tuple))
docs: Schedule an event to be emitted after a delay.
  
          :param delay: number of seconds
          :param data_tuple: a 2-tuple (flavor, data)
          :return: an event object, useful for cancelling.