public static void RemoveAutomationFocusChangedEventHandler(
     AutomationFocusChangedEventHandler eventHandler)
 {
     AutomationFocusChangedEventHandlerImpl.Remove(handlingDelegate: eventHandler);
 }
 public static void AddAutomationFocusChangedEventHandler(
     AutomationFocusChangedEventHandler eventHandler)
 {
     AutomationFocusChangedEventHandlerImpl.Add(handlingDelegate: eventHandler);
 }