@interface SiriTTSService.AudioPlaybackAction : _TtCs12_SwiftObject {
    void /* unknown type, empty encoding */ asyncContext;
    void /* unknown type, empty encoding */ buffer;
    void /* unknown type, empty encoding */ audioPlayback;
    void /* unknown type, empty encoding */ audibleRequest;
    void /* unknown type, empty encoding */ audioSession;
    void /* unknown type, empty encoding */ audioHardware;
    void /* unknown type, empty encoding */ notificationCenter;
    void /* unknown type, empty encoding */ observers;
}

@end