@interface HealthVisualization.DiagramMultiDayDateAxisMetricsCalculator : HealthVisualization.DiagramDateAxisMetricsCalculator {
    void /* unknown type, empty encoding */ durationThreshold6HourTickIntervals;
    void /* unknown type, empty encoding */ durationThreshold12HourTickIntervals;
    void /* unknown type, empty encoding */ durationThreshold1DayTickIntervals;
}

@end