def backwards(self, orm):
        
        call_command("uninstallwatson", verbosity=0)
According following sls,
dataset/ETHPy150Open etianen/django-watson/src/watson/south_migrations/0002_installwatson.py/Migration.backwards--crossover with--dataset/ETHPy150Open saltstack/salt/tests/unit/states/dockerng_test.py/DockerngTestCase.test_image_present_and_force