https://firebase.google.cn/docs/reference/kotlin/com/google/firebase/inappmessaging/package-summary?authuser=0
com.google.firebase.inappmessaging | Firebase SDKs for Android
google firebasesdksandroid
https://firebase.google.com/docs/reference/kotlin/com/google/firebase/inappmessaging/ktx/package-summary
com.google.firebase.inappmessaging.ktx | Firebase SDKs for Android
google firebasektxsdksandroid
https://firebase.google.com/docs/reference/android/com/google/firebase/inappmessaging/model/package-summary
com.google.firebase.inappmessaging.model | Firebase SDKs for Android
google firebasemodelsdksandroid