Place this file under composeApp/src/nativeInterop/cinterop/nskeyvalueobserving.def
# https://slack-chats.kotlinlang.org/t/528792/hello-is-it-possible-to-use-in-kotlin-addobserver-on-nsobjec#968aa67c-9166-41c6-b44c-d549a377c08e
package = platform.foundation
language = Objective-C
---
#import <Foundation/Foundation.h>
@protocol NSKeyValueObserving
@required