Network Connection Error "ConnectionBanned?"

Earlier while browsing the Unity Script Reference, I found the NetworkConnectionError.connectionBanned, how does this work? Does this mean I can ban players without having to add my own code?

Sure does!

void OnFailedToConnect(NetworkConnectionError error) {

if (error == NetworkConnectionError.ConnectionBanned) {
			Debug.Log("you are banned from the server");
		}
	}