def best_match_language(self):
        if not self.accept_language:
            return None
        return self.accept_language.best_match(
            gettextutils.get_available_languages('rack'))
The volume level of player.
dataset/ETHPy150Open openstack/rack/rack/api/wsgi.py/Request.best_match_language--crossover with--dataset/ETHPy150Open home-assistant/home-assistant/tests/components/media_player/test_universal.py/MockMediaPlayer.volume_level