@@ -41,9 +41,9 @@
  * If possible, the original object is wrapped. If this is not possible, an
  * autoreleased copy is created.
  *
  * @return The receiver as Foundation object
  */
-- (id)NSObject;
+@property (readonly, nonatomic) id NSObject;
 @end
 
 OF_ASSUME_NONNULL_END