[Flutter] I don't see the installation ID when using Firebase in-app messenging

I am trying to use the firebase in-app messaging package in my flutter app.

According to firebase doc (https://firebase.google.com/docs/in-app-messaging/get-started?hl=fr&platform=flutter) i should get the installationID in the logs. I am running app on either debug or release mode but did'nt seem to get the log message from FIAM (Android): I/FIAM.Headless: Starting InAppMessaging runtime with Installation ID YOUR_INSTALLATION_ID

Method fiam.app.options does returns value according to the methods.

and sometime i get these logs from debugger :

I/FIAM.Display(15898): Unbinding from activity: MainActivity
I/FIAM.Headless(15898): Removing display event component


i have enabled the Firebase In-App Messaging API in Google cloud.

Although i'm not sure if needed, I have added the dependencies in app/build.gradle :

implementation 'com.google.firebase:firebase-inappmessaging:21.0.0'
implementation 'com.google.firebase:firebase-inappmessaging-display:21.0.0'


I am creating an instance of firebaseInAppMessaging in my main() file :

import 'package:firebase_in_app_messaging/firebase_in_app_messaging.dart';

Future<void> main() async {
firebaseApp = await Firebase.initializeApp(
options: DefaultFirebaseOptions.currentPlatform,
);
FirebaseInAppMessaging fiam = FirebaseInAppMessaging.instance;
//...
}

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