

def _pre_upgrade_295(self, engine):
    self.assertIndexNotExists(self, 'virtual_interfaces', 'virtual_interfaces_uuid_idx')

dataset/ETHPy150Open BU-NU-CLOUD-SP16/Trusted-Platform-Module-nova/nova/tests/unit/db/test_migrations.py NovaMigrationsCheckers._pre_upgrade_295/VarMisuse@16/23 `engine`->`self`