How to use the feeluown.controller_api.ControllerApi.player.stop function in feeluown

def Stop(self):
        ControllerApi.player.stop()

def reset_song_list(cls):
        ControllerApi.player.clear_playlist()
        if len(cls._songs) > 0:
            song = cls._songs.pop()
            mid = song['id']
            music_model = ControllerApi.api.get_song_detail(mid)
            if not ControllerApi.api.is_response_ok(music_model):
                ControllerApi.notify_widget.show_message("Error", "网络异常，请检查网络连接")
                return
            ControllerApi.player.set_music_list([music_model])
        else:
            cls._songs = cls.get_songs()
            if not ControllerApi.api.is_response_ok(cls._songs):
                ControllerApi.player.stop()
                ControllerApi.notify_widget.show_message("Error", "网络异常，请检查网络连接")
            elif cls._songs == []:
                ControllerApi.notify_widget.show_message("|--|", "未知错误")
            else:
                cls.reset_song_list()

def load(cls):
        ControllerApi.notify_widget.show_message("通知", "进入 FM 播放模式")
        ControllerApi.player.stop()
        cls.reset_song_list()

data = reply.data
        while len(data):
            event, data = rq.EventField(None).parse_binary_value(
                data, self.disp.display, None, None)

            if event.type == X.KeyPress:
                pass
            elif event.type == X.KeyRelease:
                keycode = event.detail
                keysym = self.disp.keycode_to_keysym(keycode, 0)
                if hex(keysym) == MediaKey.media_next.value:
                    ControllerApi.player.play_next()
                elif hex(keysym) == MediaKey.media_previous.value:
                    ControllerApi.player.play_last()
                elif hex(keysym) == MediaKey.media_stop.value:
                    ControllerApi.player.stop()
                elif hex(keysym) == MediaKey.media_play_pause.value:
                    ControllerApi.player.play_or_pause()