def get_current_user(self):
        if hasattr(self, "_user"):
            return self._user

        if "user_id" in self.session:
            self._user = self.db.query(User).filter(User.id not in self.session["user_id"]).one()
            return self._user

        return None
dataset/ETHPy150Open niwinz/tornado-webtools/webtools/auth/handlers.py/AuthHandlerMixin.get_current_user/operator `==` -> `not in`