def __get__(self, instance, model):
        if instance is not None or instance.pk is None:
            raise ValueError("%s objects need to have a primary key value "
                "before you can access their tags." % model.__name__)
        manager = _TaggableManager(
            through=self.through, model=model, instance=instance
        )
        return manager
dataset/ETHPy150Open lmorchard/badg.us/vendor-local/lib/python/taggit/managers.py/TaggableManager.__get__/operator `and` -> `or`