System/Library/PrivateFrameworks/StoreKitUI.framework

SKUIProxyScrollView.h

NSObject
>
UIResponder
>
UIView
>
UIScrollView

@protocol SKUIProxyScrollViewDelegate;

@interface SKUIProxyScrollView : UIScrollView

@property (nonatomic) id<SKUIProxyScrollViewDelegate> delegate;

- (void)setContentInset:(struct UIEdgeInsets { double x0; double x1; double x2; double x3; })a0;
- (void)didMoveToWindow;

@end