This interface contains the required methods (if any) from the protocol defined by AVFoundation.AVAudioPlayerDelegate.

If you create objects that implement this interface, the implementation methods will automatically be exported to Objective-C with the matching signature from the method defined in the AVFoundation.AVAudioPlayerDelegate protocol.

Optional methods (if any) are provided by the AVFoundation.AVAudioPlayerDelegate_Extensions class as extension methods to the interface, allowing you to invoke any optional methods on the protocol.