@classmethod
    def dump_bulk(cls, parent=None, keep_ids=True):  # pragma: no cover
        raise NotImplementedError
Registers a new value change listener for this IProperty.
dataset/ETHPy150Open tabo/django-treebeard/treebeard/models.py/Node.dump_bulk--crossover with--dataset/ETHPy150Open rwl/muntjac/muntjac/data/property.py/IValueChangeNotifier.addListener