System/Library/PrivateFrameworks/PassKitUI.framework
PKBackdropView.h
@interface PKBackdropView : UIView
+ (Class)layerClass;
- (id)backdropLayer;
@end
System/Library/PrivateFrameworks/PassKitUI.framework
@interface PKBackdropView : UIView
+ (Class)layerClass;
- (id)backdropLayer;
@end