System/Library/PrivateFrameworks/ScreenTimeSettingsUI.framework

STOnboardingView.h

NSObject
>
UIResponder
>
UIView

@interface STOnboardingView : UIView

@property double topInset;

- (struct UIEdgeInsets { double x0; double x1; double x2; double x3; })safeAreaInsets;
- (id)initWithTopInset:(double)a0;

@end