def _has_value(self, entity, unused_rest=None):
    return self._name in entity._values
Gets all the hiring challenges from all the availbale platforms
dataset/ETHPy150Open GoogleCloudPlatform/datastore-ndb-python/ndb/model.py/Property._has_value--crossover with--dataset/ETHPy150Open architv/chcli/challenges/cli.py/hiring_contests