@class NSDictionary, NSMutableDictionary, WBSDispatchSourceTimer; @interface WBSWebExtensionAlarmMetadata : NSObject { NSMutableDictionary *_dictionary; double _initialTimerScheduleSeconds; BOOL _repeats; } @property (retain, nonatomic) WBSDispatchSourceTimer *timer; @property (readonly, nonatomic) NSDictionary *dictionary; @property (readonly, nonatomic) BOOL isValid; - (void).cxx_destruct; - (void)_scheduleWithHandler:(id /* block */)a0; - (id)initWithName:(id)a0 scheduledTime:(id)a1 periodInMinutes:(id)a2 initialTimerScheduleSeconds:(double)a3; @end