@class NSString, NSProgress, PXAudioSession, NSObject; @protocol OS_dispatch_queue, PXStorySongResource; @interface PXStorySongResourcePreloadingOperation : PXAsyncOperation <PXChangeObserver, NSProgressReporting> @property (retain, nonatomic) PXAudioSession *session; @property (retain, nonatomic) NSObject<OS_dispatch_queue> *queue; @property (readonly, nonatomic) id<PXStorySongResource> resource; @property (readonly) unsigned long long hash; @property (readonly) Class superclass; @property (readonly, copy) NSString *description; @property (readonly, copy) NSString *debugDescription; @property (readonly) NSProgress *progress; - (id)init; - (void)observable:(id)a0 didChange:(unsigned long long)a1 context:(void *)a2; - (void).cxx_destruct; - (id)initWithSongResource:(id)a0; - (void)px_start; @end