code: func GetKubeletDir(dryRun bool) (string, error) {
  	if dryRun {
  		return kubeadmconstants.CreateTempDirForKubeadm("kubeadm-upgrade-dryrun")
  	}
  	return kubeadmconstants.KubeletRunDirectory, nil
  }
docs: // GetKubeletDir gets the kubelet directory based on whether the user is dry-running this command or not.