code: func newCmdKubeletUtility() *cobra.Command {
  	cmd := &cobra.Command{
  		Use:   "kubelet",
  		Short: "Commands related to handling the kubelet",
  		Long:  cmdutil.MacroCommandLongDescription,
  	}
  
  	cmd.AddCommand(newCmdKubeletConfig())
  	return cmd
  }
docs: // newCmdKubeletUtility returns command for `kubeadm phase kubelet`