docs: def committees_legislators(self, *args, **kwargs):
          '''Return an iterable of committees with all the
          legislators cached for reference in the Committee model.
          So do a "select_related" operation on committee members.
          '''
          committees = list(self.committees(*args, **kwargs))
          legislators = self.legislators({'active': True},
                                         fields=['full_name',
                                                 settings.LEVEL_FIELD])
          _legislators = {}
  
          # This will be a cache of legislator objects used in
          # the committees.html template. Includes ids in each
          # legislator's _all_ids field (if it exists.)
          for obj in legislators:
              if 'all_ids' in obj:
                  for _id in obj['_all_ids']:
                      _legislators[_id] = obj
              else:
                  _legislators[obj['_id']] = obj
          del legislators
          for com in committees:
              com._legislators = _legislators
          return committees