Returns a URI that provides an archiveable reference to the object for the object ID.
- iOS 3.0+
- macOS 10.4+
- tvOS 9.0+
- watchOS 2.0+
- Core Data
NSURL object containing a URI that provides an archiveable reference to the object which the receiver represents.
If the corresponding managed object has not yet been saved, the object ID (and hence URI) is a temporary value that will change when the corresponding managed object is saved.