@interface GTMTLCaptureServiceObserver : GTServiceObserver <GTMTLCaptureServiceObserver> - (void)notifyCaptureObjectsChanged:(id)a0; - (void)notifyCaptureProgress:(id)a0; - (void)notifyCaptureRequest:(id)a0; - (void)notifyUnsupportedFenum:(id)a0; @end