Tells the URL session that the session has been invalidated.
UIKit for Mac 13.0+Beta
The session object that was invalidated.
The error that caused invalidation, or nil if the invalidation was explicit.
If you invalidate a session by calling its finishTasksAndInvalidate() method, the session waits until after the final task in the session finishes or fails before calling this delegate method. If you call the invalidateAndCancel() method, the session calls this delegate method immediately.
Tells the delegate that all messages enqueued for a session have been delivered.
This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.