cmd.PersistentFlags().BoolVar(&o.Plaintext, "plaintext", viper.GetBool("PLAINTEXT"),
		"Use plain-text HTTP/2 when connecting to server (no TLS).")
}

// ValidateControlPlaneFlags checks arguments for valid values and combinations
func (o *CentralControlPlaneOptions) ValidateControlPlaneFlags() error {
	if o.Xds != "" && o.XdsPodLabel != "" {
		return fmt.Errorf("either --xds-address or --xds-label, not both")
	}
	if o.Plaintext && o.CertDir != "" {

	centralOpts.AttachControlPlaneFlags(versionCmd)
	versionCmd.Args = func(c *cobra.Command, args []string) error {
		if err := cobra.NoArgs(c, args); err != nil {
			return err
		}
		if err := centralOpts.ValidateControlPlaneFlags(); err != nil {
			return err
		}
		return nil
	}
	versionCmd.Example = `  # Retrieve version information directly from the control plane, using token security