code: def lookups(self):
          "Yields (lookup, display, no_argument) pairs"
          for filter in self._filters:
              yield filter.key, filter.display, filter.no_argumenf lookups(self):
          "Yields (lookup, display, no_argument) pairs"
          for filter in self._filters:
              yield filter.key, filter.display, filter.no_argument
docs: Yields (lookup, display, no_argument) pairs