[Question] Can we use crashlytics without googleservice json and plist?

* Unity editor version: 2020.2.6
* Firebase Unity SDK version: 7.1.0
* Source you installed the SDK:UPM
* Problematic Firebase Component: Crashlytics
* Other Firebase Components in use: Auth, FireStore, Analytics
* Additional SDKs you are using: Facebook, AdMob, OneSignal
* Platform you are using the Unity editor on: Windows
* Platform you are targeting: iOS, Android
* Scripting Runtime: IL2CPP

I try to build app that could switch firebase project when restart the app. So I don't want to include googleservice file into the build and want to create firebaseapp at runtime. However it seem Crashlytics trying to access those files in build process and cause build to fail. Is it anyway possible to do it?