A protocol defining methods that URL session instances call on their delegates to handle session-level events, like session life cycle changes.
UIKit for Mac 13.0+Beta
In addition to the methods defined in this protocol, most delegates should also implement some or all of the methods in the URLSessionTaskDelegate, URLSessionDataDelegate, and URLSessionDownloadDelegate protocols to handle task-level events. These include events like the beginning and end of individual tasks, and periodic progress updates from data or download tasks.
The operation queue provided when this object was created.
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.