docs: def get_event(self, name, default=_sentinel):
          """
          Lookup an event by name.
  
          :param str item: Event name
          :return Event: Event instance under key
          """
          if name not in self.events:
              if self.create_events_on_access:
                  self.add_event(name)
              elif default is not _sentinel:
                  return default
          return self.events[name]