def deleted(self):
        assert_soft_delete()
        return self.filter(deleted=True)
Check to ensure containers are installed.
dataset/ETHPy150Open django-notifications/django-notifications/notifications/models.py/NotificationQuerySet.deleted--crossover with--dataset/ETHPy150Open tethysplatform/tethys/tethys_apps/cli/docker_commands.py/container_check