@interface HealthUI.CalendarMonthHeaderView : UICollectionReusableView {
    void /* unknown type, empty encoding */ monthLabel;
    void /* unknown type, empty encoding */ horizontalSectionInset;
    void /* unknown type, empty encoding */ weekday;
    void /* unknown type, empty encoding */ numberOfDaysPerWeek;
    void /* unknown type, empty encoding */ xPositionConstraint;
}

- (id)initWithFrame:(struct CGRect { struct CGPoint { double x0; double x1; } x0; struct CGSize { double x0; double x1; } x1; })a0;
- (void)applyLayoutAttributes:(id)a0;
- (void).cxx_destruct;
- (id)initWithCoder:(id)a0;

@end