@interface MediaPlaybackCore.PlayerObserver : _TtCs12_SwiftObject {
    void /* unknown type, empty encoding */ $__lazy_storage_$_eventStream;
    void /* unknown type, empty encoding */ player;
    void /* unknown type, empty encoding */ queue;
    void /* unknown type, empty encoding */ reporter;
    void /* unknown type, empty encoding */ configuration;
    void /* unknown type, empty encoding */ observations;
    void /* unknown type, empty encoding */ firstFrameMonitoredItem;
    void /* unknown type, empty encoding */ firstFrameMonitoredItemStartTime;
    void /* unknown type, empty encoding */ firstFrameMonitoringIsActive;
}

@end