code: def bind(self, callback: typing.Union[typing.Callable, AbstractFilter],
               validator: typing.Optional[typing.Callable] = None,
               event_handlers: typing.Optional[typing.List[Handler]] = None,
               exclude_event_handlers: typing.Optional[typing.Iterable[Handler]] = None):
          
          record = FilterRecord(callback, validator, event_handlers, exclude_event_handlers)
          self._registered.append(record)
docs: Register filter
  
          :param callback: callable or subclass of :obj:`AbstractFilter`
          :param validator: custom validator.
          :param event_handlers: list of instances of :obj:`Handler`
          :param exclude_event_handlers: list of excluded event handlers (:obj:`Handler`)