fmt.Println(bytes.IndexByte([]byte("chicken"), byte('g')))
	// Output:
	// 4
	// -1
}

func ExampleIndexFunc() {
	f := func(c rune) bool {
		return unicode.Is(unicode.Han, c)
	}
	fmt.Println(bytes.IndexFunc([]byte("Hello, 世界"), f))
	fmt.Println(bytes.IndexFunc([]byte("Hello, world"), f))
	// Output:
	// 7
	// -1
}

func ExampleIndexAny() {

		// Cyrillic is mostly 2 and 3 byte runes.
		benchBytes(b, indexSizes, bmIndexRuneUnicode(unicode.Cyrillic, 'Ꙁ'))
	})
	b.Run("Han", func(b *testing.B) {
		// Han consists only of 3 and 4 byte runes.
		benchBytes(b, indexSizes, bmIndexRuneUnicode(unicode.Han, '𠀿'))
	})
}

func bmIndexRuneASCII(index func([]byte, rune) int) func(b *testing.B, n int) {
	return func(b *testing.B, n int) {

# Release 2.17.1

### Bug Fixes and Other Changes

pkg unicode, var Gothic *RangeTable
pkg unicode, var GraphicRanges []*RangeTable
pkg unicode, var Greek *RangeTable
pkg unicode, var Gujarati *RangeTable
pkg unicode, var Gurmukhi *RangeTable
pkg unicode, var Han *RangeTable
pkg unicode, var Hangul *RangeTable
pkg unicode, var Hanunoo *RangeTable
pkg unicode, var Hebrew *RangeTable
pkg unicode, var Hex_Digit *RangeTable
pkg unicode, var Hiragana *RangeTable