C# (CSharp) ICustomPushObserver примеры использования

Пример #1

 public void RemoveObserver(ICustomPushObserver <WeatherUpdates> pushObserver)
 {
     _observerCollection.Remove(pushObserver);
 }

Пример #2

 public void AddObserver(ICustomPushObserver <WeatherUpdates> pushObserver)
 {
     _observerCollection.Add(pushObserver);
 }