Called when an object is about to be evicted or removed from the cache.
- iOS 4.0+
- macOS 10.6+
- tvOS 9.0+
- watchOS 2.0+
- Mac Catalyst 13.0+Beta
The cache with which the object of interest is associated.
The object of interest in the cache.
It is not possible to modify
cache from within the implementation of this delegate method.