def is_child_node(self):
        return not self.is_root_node()
Get the values of all the given keys
dataset/ETHPy150Open django-mptt/django-mptt/mptt/models.py/MPTTModel.is_child_node--crossover with--dataset/ETHPy150Open deldotdr/txRedis/txredis/client.py/RedisClient.mget