Hey, I would like to ask when we should call completion handler for didReceiveIncomingPushWithPayload delegate method if we have some async code fired inside. Let's have following examples: (completion called already in same runloop cycle) private let provider: CXProvider func pushRegistry(_ registry: PKPushRegistry, didReceiveIncomingPushWith payload: PKPushPayload, for type: PKPushType, completion: @escaping () -> Void) { /// code to get call info provider.reportNewIncomingCall(with: uuid, update: update) { error in /// some code here } completion() } (completion called at "future" when we "finish" handling voip notification, potentially future runloop cycle) private let provider: CXProvider func pushRegistry(_ registry: PKPushRegistry, didReceiveIncomingPushWith payload: PKPushPayload, for type: PKPushType, completion: @escaping () -> Void) { /// code to get call info provider.reportNewIncomingCall(with: uuid, update: update) { error in /// some code here completion() } } (error cases in both examples were omitted but i'm aware I should handle them too) Which one is more correct?