Firestore - Checking The Connection Status Of The Module To The Server

As far as i know, there is no equivalent to Firebase Realtime Database's .info/connected in Cloud Firestore, that allows you to verify the connection status. I read on Firebase offical blog a post regarding the differences between Firebase and Firestore and i saw that this problem is in fact one of the use-cases.

The Realtime Database has native support for presence -- that is, being able to tell when a user has come online or gone offline. While we do have a solution for Cloud Firestore, it's not quite as elegant.

If you read Firestore offical documentation, you will see that there is a possible implementation of a presence system by combining Realtime Database and Firestore.