@property
    def is_volume_muted(self):
        return self._is_volume_muted
Override this method to do what is necessary when upstream
dataset/ETHPy150Open home-assistant/home-assistant/tests/components/media_player/test_universal.py/MockMediaPlayer.is_volume_muted--crossover with--dataset/ETHPy150Open enthought/mayavi/mayavi/components/optional.py/Optional.update_data