@class NSArray; @interface _HKSleepDurationAverageFormatter : HKInteractiveChartDataFormatter @property (retain, nonatomic) NSArray *rangeDataForTimeInBedAverage; @property (retain, nonatomic) NSArray *rangeDataForTimeAsleepAverage; - (id)init; - (void).cxx_destruct; - (id)formattedSelectedRangeLabelDataWithChartData:(id)a0 context:(long long)a1; - (void)_setRangeData:(id)a0 isTimeInBed:(BOOL)a1; - (void)setCurrentVisibleAverageNumber:(id)a0 isTimeInBed:(BOOL)a1 isHighlighted:(BOOL)a2 useAverageCopy:(BOOL)a3; @end