https://firebase.google.com/docs/reference/android/com/google/firebase/crashlytics/CustomKeysAndValues?authuser=19
CustomKeysAndValues | Firebase SDKs for Android
firebasesdksandroid
https://firebase-dot-devsite-v2-prod.appspot.com/docs/reference/kotlin/com/google/firebase/crashlytics/CustomKeysAndValues
CustomKeysAndValues | Firebase SDKs for Android
firebasesdksandroid