An object that uniquely identifies a push notification sent from a container.
- iOS 8.0+
- macOS 10.10+
- Mac Catalyst 13.0+Beta
- tvOS 9.0+
- watchOS 3.0+
You do not create notification IDs directly. The server creates them when it creates the
CKNotification objects that correspond to the push notifications sent to your app. You can compare two IDs using the
is method to determine if two notification objects are the same. This class defines no methods or properties.