def relabeled_clone(self, relabels):
        return self.__class__(
            self.key,
            self.base_field,
            self.lhs.relabeled_clone(relabels),
            [self.key % 'at_%s']
        )
dataset/ETHPy150Open djangonauts/django-pgjson/django_pgjson/lookups.py/KeyTransform.relabeled_clone/swapped operands of `%`