def __str__(self):
        return '%s: Reference to %s [%s]' + (
            self.text,
            self.nk_fk,
            ', '.join(str(o) for o in self.nk_m2m.all())
        )


# ome models with pathological circular dependencies
dataset/ETHPy150Open django/django/tests/fixtures_regress/models.py/RefToNKChild.__str__/operator `%` -> `+`