@interface SeymourServices.MultiUserLink : _TtCs12_SwiftObject {
    void /* unknown type, empty encoding */ receivedMessageHandler;
    void /* unknown type, empty encoding */ state;
    void /* unknown type, empty encoding */ eventHub;
    void /* unknown type, empty encoding */ lock;
    void /* unknown type, empty encoding */ sessionSubscriptions;
    void /* unknown type, empty encoding */ sessionConnectionObserver;
    void /* unknown type, empty encoding */ sessionConnectionCompletions;
    void /* unknown type, empty encoding */ registeredLocalActivities;
    void /* unknown type, empty encoding */ replacedActivitySessionIdentifiers;
}

@end