public static List <ContextTrack> GetNextTracks([NotNull] JObject obj)
 {
     if (!(obj["next_tracks"] is JArray prevTracks))
     {
         return(null);
     }
     return(ProtoUtils.JsonToContextTracks(prevTracks));
 }
        public static ContextTrack GetTrack([NotNull] JObject obj)
        {
            var track = obj["track"];

            return(track == null ? null : ProtoUtils.JsonToContextTrack(track));
        }