@abc.abstractmethod
    def disable(self, pmon, router_ns):
Returns true if user-defined tables exist.  Necessary to prevent accidental re-run of schema files.
dataset/ETHPy150Open openstack/neutron/neutron/agent/linux/pd_driver.py/PDDriverBase.disable--crossover with--dataset/ETHPy150Open jzohrab/DbMigrator/dbMigrator/migrator.py/DatabaseHandler.user_defined_tables_exist