var v string
	if idx >= 0 {
		k = str[:idx]
		v = str[idx+1:]
	} else {
		k = str
	}
	return k, v
}

// validateFlagIsSetManuallyOrNot can validate that a persistent flag is set manually or not by user for given command
func validateFlagIsSetManuallyOrNot(istioCmd *cobra.Command, flagName string) bool {
	if istioCmd != nil {
		allPersistentFlagSet := istioCmd.PersistentFlags()
		if flagName != "" {