public static bool Contains(IUpdateElement element)
 {
     return(Get().currentElements.Contains(element));
 }
 void InternalUnregisterElement(IUpdateElement element)
 {
     currentElements.Remove(element);
 }
 public static void UnregisterElement(IUpdateElement element)
 {
     Get().InternalUnregisterElement(element);
 }
 void InternalRegisterElement(IUpdateElement element)
 {
     currentElements.Add(element);
 }