def verify_naive(self):
        model_class = self.model_class
        for node in self._select:
            if isinstance(node, Field) and node.model_class != model_class:
                return False
            elif isinstance(node, Node) and node._bind_to is None:
                if node._bind_to != model_class:
                    return False
        return True
dataset/ETHPy150Open coleifer/peewee/peewee.py/SelectQuery.verify_naive/operator `is not` -> `is`