System/Library/PrivateFrameworks/SiriPlaybackControlSupport.framework

SiriPlaybackControlSupport.PlaybackController.h

Download SiriPlaybackControlSupport.PlaybackController.h

1. _TtCs12_SwiftObject

@interface SiriPlaybackControlSupport.PlaybackController : _TtCs12_SwiftObject {
    void /* unknown type, empty encoding */ playbackControlsCommandProvider;
}

@end