@abc.abstractmethod
    def partition_spec(self, partition):
        pass
Remove ``instance`` from this :class:`Session`. If ``instance``
dataset/ETHPy150Open spotify/luigi/luigi/contrib/hive.py/HiveClient.partition_spec--crossover with--dataset/ETHPy150Open lsbardel/python-stdnet/stdnet/odm/session.py/Session.expunge