FirebaseAuth.instanceFor constructor Null safety

FirebaseAuth.instanceFor(
  1. {required FirebaseApp app}
)

Returns an instance using a specified FirebaseApp.

Implementation

factory FirebaseAuth.instanceFor({required FirebaseApp app}) {
  return _firebaseAuthInstances.putIfAbsent(app.name, () {
    return FirebaseAuth._(app: app);
  });
}