Optional ReadonlymutedWhether the publisher muted it. VERIFY: updated BEFORE TrackMuted / TrackUnmuted is emitted.
Optional ReadonlysidThe track sid.
Optional ReadonlysourceThe track source (TrackSource: camera and screen share are video; microphone and screen-share audio are not).
A remote participant's published track, subscribed or not. VERIFY against @livekit/rtc-node:
RemoteTrackPublication(sid,source,mutedgetters; the SDK keeps one object per publication and passes it to every event).