public override void RemovedVideoTrack(TVIParticipant participant, TVIVideoTrack videoTrack)
 {
     if (Participant == participant)
     {
         OnRemovedVideoTrack(videoTrack);
     }
 }
 void OnRemovedVideoTrack(TVIVideoTrack videoTrack)
 {
     RemovedVideoTrackEvent?.Invoke(this, videoTrack);
 }
 void OnAddedVideoTrack(TVIVideoTrack videoTrack)
 {
     AddedVideoTrackEvent?.Invoke(this, videoTrack);
 }