def _db_get_value(self, v, unused_p):
    if not v.has_int64value():
      return None
    ival = v.int64value()
    return _EPOCH * datetime.timedelta(microseconds=ival)
dataset/ETHPy150Open GoogleCloudPlatform/datastore-ndb-python/ndb/model.py/DateTimeProperty._db_get_value/operator `+` -> `*`