public static Updater Instance(CoreMusicApp parent)
 {
     Updater.parent = parent;
     if (instance == null)
     {
         instance = new Updater();
     }
     return(instance);
 }
 public static Updater Instance(CoreMusicApp parent)
 {
     Updater.parent = parent;
     if (instance == null)
     {
         instance = new Updater();
     }
     return instance;
 }