@class NSString, PXVideoSessionManager, PXVideoContentProvider; @interface PXStoryVideoAssetResourcePreloadingOperation : PXStoryDisplayAssetResourcePreloadingOperation <PXChangeObserver> @property (readonly, nonatomic) struct { struct { long long value; int timescale; unsigned int flags; long long epoch; } start; struct { long long value; int timescale; unsigned int flags; long long epoch; } duration; } downloadTimeRange; @property (readonly, nonatomic) PXVideoSessionManager *videoSessionManager; @property (retain) PXVideoContentProvider *videoContentProvider; @property (readonly, nonatomic) BOOL isExporting; @property (readonly) unsigned long long hash; @property (readonly) Class superclass; @property (readonly, copy) NSString *description; @property (readonly, copy) NSString *debugDescription; - (void)observable:(id)a0 didChange:(unsigned long long)a1 context:(void *)a2; - (id)diagnosticDescription; - (void).cxx_destruct; - (void)cancel; - (id)initWithDisplayAssetResource:(id)a0 mediaProvider:(id)a1; - (id)initWithVideoAssetResource:(id)a0 mediaProvider:(id)a1 downloadTimeRange:(struct { struct { long long x0; int x1; unsigned int x2; long long x3; } x0; struct { long long x0; int x1; unsigned int x2; long long x3; } x1; })a2 videoSessionManager:(id)a3 isExporting:(BOOL)a4; - (void)px_start; @end