@interface SeymourUI.SessionRouteMonitor : _TtCs12_SwiftObject {
    void /* unknown type, empty encoding */ eventHub;
    void /* unknown type, empty encoding */ subscriptionToken;
    void /* unknown type, empty encoding */ systemRouteCategoriesFetcher;
    void /* unknown type, empty encoding */ currentSessionRouteCategory;
    void /* unknown type, empty encoding */ systemRouteCategories;
}

- (void)onOutputDeviceChanged;

@end