@class NSString; @interface CRKClassroomLockScreenMonitor_iOS : NSObject <CRKClassroomLockScreenMonitoring> { int mDidAppearObserver; int mDidDismissObserver; } @property (nonatomic, getter=isClassroomLockScreenVisible) BOOL classroomLockScreenVisible; @property (readonly) unsigned long long hash; @property (readonly) Class superclass; @property (readonly, copy) NSString *description; @property (readonly, copy) NSString *debugDescription; - (void)startObserving; - (id)init; - (void)dealloc; - (void)endObserving; - (void)dismissClassroomLockScreen; - (void)displayClassroomLockScreenWithLabel:(id)a0 passcode:(id)a1; @end