How to register a callback for SignOut Event in Firebase Anonymous login?
<p>I am trying to see if its possible to somehow register a callback for onSignOut in firebase? </p>

<p>I am trying to use login users anonymously. I have registered for onAuthStateChanged() but its only fired when you you login. I want a function callback when this login sessions finishes.</p>

<p>OnDisconnect() listener is specifically for the database socket dropping off. But I need a specific way to know if the anonymous login is signed out.</p>