System/Library/PrivateFrameworks/ChatKit.framework

CKLargeHitButton.h

NSObject
>
UIResponder
>
UIView
>
UIControl
>
UIButton

@interface CKLargeHitButton : UIButton

@property (nonatomic) struct UIEdgeInsets { double top; double left; double bottom; double right; } ck_hitTestInsets;

- (BOOL)pointInside:(struct CGPoint { double x0; double x1; })a0 withEvent:(id)a1;

@end