The settable config flag for GDPR opt-in/opt-out.
After initializeApp resolves, this reflects the flag the native SDK is using, which can
differ from the value passed in when the key was omitted.
ReadonlynameThe name (identifier) for this App. '[DEFAULT]' is the default App.
ReadonlyoptionsThe (read-only) configuration options from the app initialization.
Base interface for FirebaseApp containing core properties and methods. The concrete FirebaseApp class implements this interface.