if err != nil {
		if inUseError(err) {
			failedConditionErr := fmt.Errorf("Expander.NodeExpand failed to expand the volume : %w", volumetypes.NewFailedPreconditionError(err.Error()))
			return false, failedConditionErr
		}
		return false, fmt.Errorf("Expander.NodeExpand failed to expand the volume : %w", err)
	}
	return true, nil
}

func inUseError(err error) bool {

}

func (e *expanderDefaults) ExpandVolumeDevice(spec *volume.Spec, newSize resource.Quantity, oldSize resource.Quantity) (resource.Quantity, error) {
	klog.Warning(logPrefix(e.plugin), "using default expand for volume ", spec.Name(), ", to size ", newSize, " from ", oldSize)
	return newSize, nil
}

// the defaults for NodeExpand return a generic resize indicator that will trigger the operation executor to go ahead with

	n := copy(p, f.buf)
	p = p[n:]

	// Fill the rest of the buffer
	for len(p) > 0 {
		if f.counter > 1 {
			f.expander.Reset()
		}
		f.expander.Write(f.prev)
		f.expander.Write(f.info)
		f.expander.Write([]byte{f.counter})
		f.prev = f.expander.Sum(f.prev[:0])
		f.counter++

		// Copy the new batch into p
		f.buf = f.prev
		n = copy(p, f.buf)
		p = p[n:]
	}

Hemant Kumar <******@****.***> 1551618781 -0500

     * they represent, so, for example, {@code \n} becomes newline. If this is undesirable then {@link #expand(Map, Action)}
     * should be used to disable this behavior.
     *
     * @param properties reference-to-value map for substitution
     * @return this
     */
    ContentFilterable expand(Map<String, ?> properties);

    /**
     * <p>Expands property references in each file as it is copied. More specifically, each file is transformed using

func set(slice []string) map[string]bool {
	s := make(map[string]bool, len(slice))
	for _, v := range slice {
		s[v] = true
	}
	return s
}

// Expand takes a counter defined with buckets and expands it into distinct
// strings for each bucket
func Expand(counter string) []string {
	prefix, rest, hasBuckets := strings.Cut(counter, "{")
	var counters []string
	if hasBuckets {

	}
	// Extract size information.
	argSize = abid.stackCallArgsSize
	retOffset = abid.retOffset
	frametype = toType(ft)

	// Expand stack pointer bitmap into byte-map.
	for i := uint32(0); i < abid.stackPtrs.n; i++ {
		stack = append(stack, abid.stackPtrs.data[i/8]>>(i%8)&1)
	}

	// Expand register pointer bitmaps into byte-maps.
	bool2byte := func(b bool) byte {
		if b {
			return 1
		}
		return 0
	}

        link.classList.add("active");

        // Expand all parent navigation
        var parentListEl = link.closest("li");
        while (parentListEl !== null) {
            var dropDownEl = parentListEl.querySelector(".nav-dropdown");
            if (dropDownEl !== null) {
                dropDownEl.classList.add("expanded");
            }
            parentListEl = parentListEl.parentNode.closest("li");

}

// NormalizePath expands the homedir (~) and returns an error if the file doesn't exist.
func NormalizePath(originalPath string) (string, error) {
	if originalPath == "" {
		return "", nil
	}
	// trim leading/trailing spaces from the path and if it uses the homedir ~, expand it.
	var err error
	out := strings.TrimSpace(originalPath)
	out, err = homedir.Expand(out)
	if err != nil {
		return "", err
	}

        File zipFile = fileProvider.get();
        if (!zipFile.exists()) {
            throw new InvalidUserDataException(format("Cannot expand %s as it does not exist.", getDisplayName()));
        }
        if (!zipFile.isFile()) {
            throw new InvalidUserDataException(format("Cannot expand %s as it is not a file.", getDisplayName()));
        }

        File expandedDir = getExpandedDir();