public async Task <EmptyModelDTO> AddPlaylistTracks(string playlistETag, IEnumerable <int> trackIds, int toIndex = 0)
        {
            var tt = await CreateUserPlaylistWithTitle("bob");

            Task <EmptyModel> playlistModel = tidlSession.AddPlaylistTracks(tt.Uuid, playlistETag, trackIds, toIndex);
            EmptyModelDTO     res           = await EmptyModelDTO.ConvertToDTO(playlistModel);

            return(res);
        }
 public async Task <EmptyModel> AddPlaylistTracks(string uuid, string playlistETag, IEnumerable <int> trackIds)
 {
     return(await tidlSession.AddPlaylistTracks(uuid, playlistETag, trackIds));
 }