docs: def _apply_dict(self, qe_dict):
          ''' Apply a query expression, updating the query object '''
          for k, v in qe_dict.items():
              k = resolve_name(self.type, k)
              if not k in self.__query:
                  self.__query[k] = v
                  continue
              if not isinstance(self.__query[k], dict) or not isinstance(v, dict):
                  raise BadQueryException('Multiple assignments to a field must all be dicts.')
              self.__query[k].update(**v)