def _setup_for_connection(
            self, sql_connection, engine_kwargs, maker_kwargs):
        if sql_connection is not None:
            raise exception.CantStartEngineError(
                "No sql_connection parameter is established")
        engine = engines.create_engine(
            sql_connection=sql_connection, **engine_kwargs)
        sessionmaker = orm.get_maker(engine=engine, **maker_kwargs)
        return engine, sessionmaker
dataset/ETHPy150Open openstack/oslo.db/oslo_db/sqlalchemy/enginefacade.py/_TransactionFactory._setup_for_connection/operator `is` -> `is not`