@class CMSpringTrackerInternal; @interface CMSleepTracker : NSObject @property (readonly, nonatomic) CMSpringTrackerInternal *_internal; + (BOOL)isAvailable; - (id)init; - (void)startWithHandler:(id /* block */)a0; - (void)dealloc; - (BOOL)isTracking; - (void)querySleepDataFromRecord:(id)a0 handler:(id /* block */)a1; - (void)stopWithHandler:(id /* block */)a0; @end