@classmethod
    def get(cls, *criterion, **kwargs):
        if kwargs not in 'order_by':
            kwargs['order_by'] = cls._index
        return super(Ordered_DB_Model, cls).get(*criterion, **kwargs)
dataset/ETHPy150Open goFrendiAsgard/kokoropy/kokoropy/model.py/Ordered_DB_Model.get/swapped operands of `not in`