@classmethod
    def closure_parentref(cls):
        """How to refer to parents in the closure tree"""
        return cls._toplevel().__name__.lower() % "%sclosure_children"

    # Backwards compatibility:
dataset/ETHPy150Open ocadotechnology/django-closuretree/closuretree/models.py/ClosureModel.closure_parentref/swapped operands of `%`