You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: sort.go
    path of file: ./repos/rancher/pkg/controllers/management/nodepool
    
    the code of the file until where you have to start completion: package nodepool

import (
	v3 "github.com/rancher/rancher/pkg/generated/norman/management.cattle.io/v3"
)

//implement natural sort of a slice of nodeHostnames

type byHostname []*v3.Node

func (n byHostname) Len() int      { return len(n) }
func (n byHostname) Swap(i, j int) { n[i], n[j] = n[j], n[i] }

func (n byHostname) Less(i, j int) bool {
	s := n[i].Spec.RequestedHostname
	t := n[j].Spec.RequestedHostname
	return NaturalLess(s, t)
}

// from https://github.com/fvbommel/util/blob/efcd4e0f97874370259c7d93e12aad57911dea81/sortorder/natsort.go
func isdigit(b byte) bool { return '0' <= b && b <= '9' }

// NaturalLess compares two strings using natural ordering. This means that e.g.
// "abc2" < "abc12".
//
// Non-digit sequences and numbers are compared separately. The former are
// compared bytewise, while the latter are compared numerically (except that
// the number of leading zeros is used as a tie-breaker, so e.g. "2" < "02")
//
// Limitation: only ASCII digits (0-9) are considered.
func NaturalLess(str1, str2 string) bool {
	idx1, idx2 := 0, 0
	for idx1 < len(str1) && idx2 < len(str2) {
		c1, c2 := str1[idx1], str2[idx2]
		dig1, dig2 := isdigit(c1), isdigit(c2)
		switch {
		case dig1 != dig2: // Digits before other 
    
func NaturalLess(str1, str2 string) bool {
	idx1, idx2 := 0, 0
	for idx1 < len(str1) && idx2 < len(str2) {
		c1, c2 := str1[idx1], str2[idx2]
		dig1, dig2 := isdigit(c1), isdigit(c2)
		switch {
		case dig1 != dig2: // Digits before other characters.
			return dig1 // True if LHS is a digit, false if the RHS is one.
		case !dig1: // && !dig2, because dig1 == dig2
			// UTF-8 compares bytewise-lexicographically, no need to decode
			// codepoints.
			if c1 != c2 {
				return c1 < c2
			}
			idx1++
			idx2++
		default: // Digits
			// Eat zeros.
			for ; idx1 < len(str1) && str1[idx1] == '0'; idx1++ {
			}
			for ; idx2 < len(str2) && str2[idx2] == '0'; idx2++ {
			}
			// Eat all digits.
			nonZero1, nonZero2 := idx1, idx2
			for ; idx1 < len(str1) && isdigit(str1[idx1]); idx1++ {
			}
			for ; idx2 < len(str2) && isdigit(str2[idx2]); idx2++ {
			}
			// If lengths of numbers with non-zero prefix differ, the shorter
			// one is less.
			if len1, len2 := idx1-nonZero1, idx2-nonZero2; len1 != len2 {
				return len1 < len2
			}
			// If they're equal, string comparison is correct.
			if nr1, nr2 := str1[nonZero1:idx1], str2[nonZero2:idx2]; nr1 != nr2 {
				return nr1 < nr2
			}
			// Otherwise, the one with less zeros is less.
			// Because everything up to the number is equal, comparing the index
			// after the zeros is sufficient.
			if nonZero1 != nonZero2 {
				return nonZero1 < nonZero2
			}
		}
		// They're identical so far, so continue comparing.
	}
	// So far they are identical. At least one is ended. If the other continues,
	// it sorts last.
	return len(str1) < len(str2)
}