def empty(self, value):
    return value is None
Contribute custom commands.
dataset/ETHPy150Open CollabQ/CollabQ/.google_appengine/google/appengine/ext/db/__init__.py/IntegerProperty.empty--crossover with--dataset/ETHPy150Open flask-admin/flask-admin/flask_admin/contrib/rediscli.py/RedisCli._contribute_commands