RoomDelegate constructor Null safety

1. livekit_client
2. livekit_client
3. RoomDelegate
4. RoomDelegate constructor

RoomDelegate mixin

1. Constructors
2. RoomDelegate
3. Properties
4. hashCode
5. runtimeType
6. Methods
7. noSuchMethod
8. onActiveSpeakersChanged
9. onDataReceived
10. onDisconnected
11. onMetadataChanged
12. onParticipantConnected
13. onParticipantDisconnected
14. onReconnected
15. onReconnecting
16. onTrackMuted
17. onTrackPublished
18. onTrackSubscribed
19. onTrackSubscriptionFailed
20. onTrackUnmuted
21. onTrackUnpublished
22. onTrackUnsubscribed
23. toString
24. Operators
25. operator ==