@interface GroupActivities.PlaybackSyncer : _TtCs12_SwiftObject {
void /* unknown type, empty encoding */ localParticipantState;
void /* unknown type, empty encoding */ transportControlStates;
void /* unknown type, empty encoding */ messageEncoder;
void /* unknown type, empty encoding */ messageDecoder;
void /* unknown type, empty encoding */ cancellables;
void /* unknown type, empty encoding */ reloadCompletion;
void /* unknown type, empty encoding */ hasReceivedTransportState;
void /* unknown type, empty encoding */ transportStateTakeoverWorkItem;
void /* unknown type, empty encoding */ waitingForCatchupResponseFromParticipants;
void /* unknown type, empty encoding */ queue;
void /* unknown type, empty encoding */ avMediumDelegate;
void /* unknown type, empty encoding */ coordinator;
void /* unknown type, empty encoding */ link;
void /* unknown type, empty encoding */ syncerDelegate;
void /* unknown type, empty encoding */ defaultTransportStateTakeoverInterval;
void /* unknown type, empty encoding */ initiatorTransportStateTakeoverInterval;
}
@end