anchor.diff:      double pitch: 1.0
     }) async {
       int streamId = _nextStreamId++;
  -    SoundPoolPlayResponseParams result = await _soundPool.ptr.play(
  +    SoundPoolPlayResponseParams result = await _soundPool.play(
         sound._soundId, streamId, <double>[leftVolume, rightVolume], loop, pitch
       );
   
  
positive.code:     // Create media player
      SoundTrack soundTrack = new SoundTrack();
      soundTrack._player = new MediaPlayerProxy.unbound();
      _mediaService.ptr.createPlayer(soundTrack._player);
  
      await soundTrack._player.ptr.prepare(await pipe);
      return soundTrack;
    }
  
  
negative.code:   /// Creates a new SoundEffectPlayer with a max number of simultaneous
    /// streams specified.
    SoundEffectPlayer(int maxStreams) {
      MediaServiceProxy mediaService = shell.connectToApplicationService(
        'mojo:media_service', MediaService.connectToService
      );
      _soundPool = new SoundPoolProxy.unbound();
      mediaService.createSoundPool(_soundPool, maxStreams);
    }
  
    SoundPoolProxy _soundPool;
  