polkit.addRule(function(action, subject) {
  if ((action.id.indexOf("org.freedesktop.ModemManager1.") == 0 ||
       action.id.indexOf("org.freedesktop.login1.") == 0 ||
       action.id.indexOf("org.freedesktop.NetworkManager.") == 0) &&
      (subject.isInGroup("plugdev") || subject.isInGroup("wheel"))) {
    return polkit.Result.YES;
  }
});