How to get the token that the site gives when logging in?

Question

Python

Good afternoon, I'm trying to parse the admin panel of the Teltonika router so that the script can get connection data from the admin panel. The problem is that after I logged in, "stok" is added to the url, for example 192.168.5.1/cgi-bin/luci/;stok=b0f53878dbbc297d8cf...
I'm trying to do this:

payload = {
        "username": "admin",
        "password": "admin"
    }

    # Perform login
    result = session_requests.post("http://192.168.5.1", data=payload, headers=dict(referer="http://192.168.5.1."))

I looked at what I get in result, there is no stok.
I tried to get data after login - it gives out the authorization page again.