code: async def _has_id(self, *args, **kwds):
          
          # if there is only one positional argument
          if len(args) == 1:
              # parse the appropriate query
              result = await parse_string(
                  self._query,
                  self.service.object_resolver,
                  self.service.connection_resolver,
                  self.service.mutation_resolver,
                  obey_auth=False
              )
              # go to the bottom of the result for the list of matching ids
              return self._find_id(result['data'], args[0])
          # otherwise
          else:
              # treat the attribute like a normal filter
              return self._has_id(**kwds)
docs: Equality checks are overwitten to perform the actual check in a
              semantic way.