return &PodNetnsEntry{
		uid:     uid,
		netns:   netns,
		netnsfd: fd,
		inode:   inode,
	}, nil
}

func isProcess(entry fs.DirEntry) bool {
	// check if it is a directory
	if !entry.IsDir() {
		return false
	}

	// check if it is a number
	if strings.IndexFunc(entry.Name(), isNotNumber) != -1 {
		return false
	}
	return true
}

func GetFd(f fs.File) (uintptr, error) {