def ListChildren(self, limit=1000000, age=NEWEST_TIME):
    # Just grab all the children from the index.
    index_prefix = "index:dir/"
    for predicate, _, timestamp in data_store.DB.ResolvePrefix(
        self.urn, index_prefix, token=self.token,
        timestamp=Factory.ParseAgeSpecification(age), limit=limit):
      urn = self.urn.Add(predicate[len(index_prefix):])
      urn.age = rdfvalue.RDFDatetime(timestamp)
      yield urn
Yields RDFURNs of all the children of this object.
dataset/ETHPy150Open google/grr/grr/lib/aff4.py/AFF4Volume.ListChildren