function valveServer( )
{
gamerules = Entity.GetGameRulesProxy();
is_valve_server = Entity.GetProp( gamerules, "CCSGameRulesProxy", "m_bIsValveDS" );
Cheat.Print("Is this Valve Dedicated server: " + is_valve_server + "\n");
}
Cheat.RegisterCallback("Draw", "valveServer");