def METHOD_NAME(self):
    # shouldn't load the extract, but we cant test that from python
    config = get_config(self.tiles_path)
    with open(self.config_path, 'w') as f:
        json.dump(config, f, indent=2)
    actor = Actor(str(self.config_path))
    self.assertIn('tileset_last_modified', actor.status())