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kotlinlang

I don't really get the ios `...Protocol` and `...ProtocolMeta`
Let's say I have some code that looks like this:
```                val player = AVAudioPlayer(soundUrl, null)
                player.delegate = object : AVAudioPlayerDelegateProtocol{
                    override fun audioPlayerDidFinishPlaying(
                        player: AVAudioPlayer,
                        successfully: Boolean
                    ) {
                        ...
                    }
                }```
It complains that it needs to override all these ios NSObjectProtocol methods which is probably not something that I want. But when I try to use `AVAudioPlayerDelegateProtocol*Meta*` player.delegate complains that it doesn not conform to `AVAudioPlayerDelegateProtocol`

Can I make the delegate work without implementing all these weird NSObjectProtocol methods.?

Okay, one can simply do sth like this:
```player.delegate = object : NSObject(), AVAudioPlayerDelegateProtocol {```