def mute_volume(self):
        self._is_volume_muted = ~self._is_volume_muted
Add the client (or create) appropriate worker and address trackers
dataset/ETHPy150Open home-assistant/home-assistant/tests/components/media_player/test_universal.py/MockMediaPlayer.mute_volume--crossover with--dataset/ETHPy150Open simplecrypto/powerpool/powerpool/stratum_server.py/StratumServer.set_user