@class XRSpace; @protocol NSObject; @interface _XRSpaceNotificationShim : NSObject @property (weak, nonatomic) id<NSObject> observer; @property (weak, nonatomic) id<NSObject> target; @property (nonatomic) BOOL targetIsSet; @property (retain, nonatomic) id<NSObject> token; @property (weak, nonatomic) XRSpace *space; - (void)dealloc; - (void).cxx_destruct; @end