def __hash__(self):
    value = 17
    value = ((value * 31) ^ hash(make_hashable(self.an_id)))
    value = ((value * 31) ^ hash(make_hashable(self.a_string)))
    return value
def __hash__(self):
    value = 17
    value = ((value * 31) ^ hash(make_hashable(self.an_id)))
    value = ((value * 31) ^ hash(make_hashable(self.a_string)))
    return value