def get_event(self, event_id):
return self._events_dict[event_id]<EOL>
Get an event in this conversation by its ID.

        Args:
            event_id (str): ID of the event.

        Raises:
            KeyError: If no such :class:`.ConversationEvent` is known.

        Returns:
            :class:`.ConversationEvent` with the given ID.