def ListChildren(self, urn, token=None, limit=None, age=NEWEST_TIME):
    _, children_urns = list(self.MultiListChildren(
        [urn], token=token, limit=limit, age=age))[0]
    return children_urns
Lists bunch of directories efficiently.
dataset/ETHPy150Open google/grr/grr/lib/aff4.py/Factory.ListChildren