anchor.diff:    ///       assets:
     ///         - assets/audios/
     ///
  -  void open(Playable playable, {
  +  void open(
  +    Playable playable, {
       bool autoStart = _DEFAULT_AUTO_START,
       double volume,
       bool respectSilentMode = _DEFAULT_RESPECT_SILENT_MODE,
  
positive.code:         volume: volume,
          seek: seek,
          respectSilentMode: respectSilentMode,
          autoStart: true
      );
    }
  
    ReadingPlaylist get playlist {
  
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) =>
  