static internal void Shutdown()
 {
     if (Config.Os == OsType.Windows)
     {
         Win64.SteamGameServer_Shutdown();
     }
     else if (Config.Os == OsType.Posix)
     {
         Posix.SteamGameServer_Shutdown();
     }
     else
     {
         throw new System.Exception("this platform isn't supported");
     }
 }