@property
    def _extra_keys(self):
        return []
Get a serialized cursor for an already executed query.
dataset/ETHPy150Open openstack/rack/rack/openstack/common/db/sqlalchemy/models.py/ModelBase._extra_keys--crossover with--dataset/ETHPy150Open CollabQ/CollabQ/.google_appengine/google/appengine/ext/db/__init__.py/_BaseQuery.cursor