@protocol HKSleepStageDayAxisDelegate; @interface HKSleepStageDayAxis : HKDateAxis @property (weak, nonatomic) id<HKSleepStageDayAxisDelegate> delegate; - (void).cxx_destruct; - (id)_currentOrGregorianCalendar; - (id)stringForDate:(id)a0 somnogramDateInterval:(id)a1; - (id)stringForDate:(id)a0 zoom:(long long)a1 labelType:(long long)a2; @end