code: func newCmdKubeletConfig() *cobra.Command {
  	cmd := &cobra.Command{
  		Use:   "config",
  		Short: "Utilities for kubelet configuration",
  		Long:  cmdutil.MacroCommandLongDescription,
  	}
  
  	cmd.AddCommand(newCmdKubeletConfigDownload())
  	cmd.AddCommand(newCmdKubeletConfigEnableDynamic())
  	return cmd
  }
docs: // newCmdKubeletConfig returns command for `kubeadm phase kubelet config`