def _class_name(self):
        raise ValueError
Save a location using `class_to_edit` model and trigger a failure on
dataset/ETHPy150Open openstack/ooi/ooi/occi/core/category.py/Category._class_name--crossover with--dataset/ETHPy150Open dimagi/commcare-hq/corehq/apps/locations/tests/test_location_sync.py/TestLocationSync._failure_on_edit