docs: def get_or_create_from_legacy_response(self, response, **kwargs):
          '''
          If a record matching the instance already does not already exist in the
          database, then create a new record.
          '''
          response_cls = self.response_class(**kwargs).get_or_create(**kwargs)
          if not getattr(response_cls, self.column):
              setattr(response_cls, self.column, self.accessor(response))
              _action_and_commit(response_cls, session.add)