anchor.diff:          volume: volume,
           seek: seek,
           respectSilentMode: respectSilentMode,
  -        autoStart: true
  -    );
  +        autoStart: true);
     }
   
     ReadingPlaylist get playlist {
  
positive.code:   ///       assets:
    ///         - assets/audios/
    ///
    void open(Playable playable, {
      bool autoStart = _DEFAULT_AUTO_START,
      double volume,
      bool respectSilentMode = _DEFAULT_RESPECT_SILENT_MODE,
  
negative.code: 
    factory AssetsAudioPlayer.newPlayer() => _getOrCreate(id: uuid.v4());
  
    /// empty constructor now create a new player
    factory AssetsAudioPlayer() => AssetsAudioPlayer.newPlayer();
  
    factory AssetsAudioPlayer.withId(String id) =>
  