// comma "," separator.
	{"", "2006-01-02 15:04:05,9999 -0700 MST", "2010-02-04 21:00:57 -0800 PST", true, false, 1, 0},
	{"", "2006-01-02 15:04:05,999999999 -0700 MST", "2010-02-04 21:00:57 -0800 PST", true, false, 1, 0},
	{"", "2006-01-02 15:04:05,9999 -0700 MST", "2010-02-04 21:00:57.0123 -0800 PST", true, false, 1, 4},
	{"", "2006-01-02 15:04:05,999999999 -0700 MST", "2010-02-04 21:00:57.0123 -0800 PST", true, false, 1, 4},

    }

    private void serialize(T newValue) {
        try {
            if (!cacheFile.isFile()) {
                cacheFile.createNewFile();
            }
            chmod.chmod(cacheFile.getParentFile(), 0700); // read-write-execute for user only
            chmod.chmod(cacheFile, 0600); // read-write for user only

	var mkdirOnce sync.Once
	putCache := func(name string, b []byte) error {
		if dirErr != nil {
			return &os.PathError{Op: "putCache", Path: name, Err: dirErr}
		}
		mkdirOnce.Do(func() {
			if err := os.MkdirAll(dir, 0700); err != nil {
				log.Printf("can't create user cache dir: %v", err)
			}
		})
		return os.WriteFile(filepath.Join(dir, name), b, 0600)
	}

	// Read and store cached data.
	// …
	_ = getCache

	fmt.Printf("[kubelet-start] Writing kubelet environment file with flags to file %q\n", kubeletEnvFilePath)

	// creates target folder if not already exists
	if err := os.MkdirAll(kubeletDir, 0700); err != nil {
		return errors.Wrapf(err, "failed to create directory %q", kubeletDir)
	}
	if err := os.WriteFile(kubeletEnvFilePath, b, 0644); err != nil {

	realManifestDir := filepath.Join(kubernetesDir, constants.ManifestsSubDirName)
	if err := os.Mkdir(realManifestDir, 0700); err != nil {
		return nil, errors.Wrapf(err, "couldn't create a realManifestDir for the upgrade")
	}

	upgradedManifestDir := filepath.Join(kubernetesDir, "upgraded-manifests")
	if err := os.Mkdir(upgradedManifestDir, 0700); err != nil {
		return nil, errors.Wrapf(err, "couldn't create a upgradedManifestDir for the upgrade")
	}

	if err != nil {
		return "", &PathError{Op: "mkdirtemp", Path: pattern, Err: err}
	}
	prefix = joinPath(dir, prefix)

	try := 0
	for {
		name := prefix + nextRandom() + suffix
		err := Mkdir(name, 0700)
		if err == nil {
			return name, nil
		}
		if IsExist(err) {
			if try++; try < 10000 {
				continue
			}

			if err != nil {
				t.Errorf("Unable to create temporary directory: %s", err)
			}

			for _, createDir := range test.setupDirs {
				err := os.Mkdir(filepath.Join(tmpDir, createDir), 0700)
				if err != nil {
					t.Errorf("Unable to setup test config directory: %s", err)
				}
			}

			for _, createFile := range test.setupFiles {
				fullPath := filepath.Join(tmpDir, createFile)

                // TODO GlobalCache require(!cacheDir.isDirectory)
                Files.createDirectories(cacheDir.toPath())
                chmod(cacheDir, 448) // octal 0700
                markAccessed(cacheDir)
                val stateFiles = mutableListOf<File>()
                val layout = WriteableLayout(cacheDir, stateFiles::add)
                try {

	fmt.Printf("[kubelet-start] Writing kubelet configuration to file %q\n", configFile)

	// creates target folder if not already exists
	if err := os.MkdirAll(kubeletDir, 0700); err != nil {
		return errors.Wrapf(err, "failed to create directory %q", kubeletDir)
	}

	if err := os.WriteFile(configFile, b, 0644); err != nil {

	S_IFIFO  = 0000010000

	S_UNSUP = 0000370000

	S_ISUID = 0004000
	S_ISGID = 0002000
	S_ISVTX = 0001000

	S_IREAD  = 0400
	S_IWRITE = 0200
	S_IEXEC  = 0100

	S_IRWXU = 0700
	S_IRUSR = 0400
	S_IWUSR = 0200
	S_IXUSR = 0100

	S_IRWXG = 070
	S_IRGRP = 040
	S_IWGRP = 020
	S_IXGRP = 010

	S_IRWXO = 07
	S_IROTH = 04
	S_IWOTH = 02
	S_IXOTH = 01
)