func appID(fullAppID string) string {
	_, dom, dis := parseFullAppID(fullAppID)
	if dom != "" {
		return dom + ":" + dis
	}
	return dis
}
func appID(fullAppID string) string {
	_, dom, dis := parseFullAppID(fullAppID)
	if dom != "" {
		return dom + ":" + dis
	}
	return dis
}
func appID ( fullAppID string ) string { _ , dom , dis := parseFullAppID ( fullAppID ) if dom != " " { return dom + " " + dis } return dis }
// appID returns "appid" or "domain.com:appid".
appID returns appid or domain . com : appid .