@class NSString, NSObject; @protocol OS_dispatch_source, OS_dispatch_queue; @interface HDFitnessMachineStateTimer : NSObject { NSString *_name; unsigned long long _duration; NSObject<OS_dispatch_source> *_timer; id /* block */ _handler; NSObject<OS_dispatch_queue> *_queue; } - (void)dealloc; - (void).cxx_destruct; @end