youtube_explode_dart package has wrong documentation

I am trying to use flutter youtube_explode_dart package but I am facing some errors mainly two

1. with video.property

Code:-

 var video = yt.videos.get('https://youtube.com/watch?v=Dpp1sIL1m5Q');
 var title = video.title; // Error in this line 

2. with streamManifest

   Code:-

    // Error saying streamManifest is not defined
    var streamInfo = streamManifest.muxed.withHigestVideoQuality();
   

Link to the documentation code :- https://pub.dev/packages/youtube_explode_dart

If anyone has used the package or knows the fix PLEASE HELP!