thrownewglobal::System.NotImplementedException("The member MediaPlaybackAudioTrackList MediaPlaybackItem.AudioTracks is not implemented. For more information, visit https://aka.platform.uno/notimplemented#m=MediaPlaybackAudioTrackList%20MediaPlaybackItem.AudioTracks");
thrownewglobal::System.NotImplementedException("The member MediaItemDisplayProperties MediaPlaybackItem.GetDisplayProperties() is not implemented. For more information, visit https://aka.platform.uno/notimplemented#m=MediaItemDisplayProperties%20MediaPlaybackItem.GetDisplayProperties%28%29");
thrownewglobal::System.NotImplementedException("The member uint MediaPlaybackList.CurrentItemIndex is not implemented. For more information, visit https://aka.platform.uno/notimplemented#m=uint%20MediaPlaybackList.CurrentItemIndex");