func ToLowerSpecial(c unicode.SpecialCase, s []byte) []byte {
	return Map(c.ToLower, s)
}

// ToTitleSpecial treats s as UTF-8-encoded bytes and returns a copy with all the Unicode letters mapped to their
// title case, giving priority to the special casing rules.
func ToTitleSpecial(c unicode.SpecialCase, s []byte) []byte {
	return Map(c.ToTitle, s)
}

	fmt.Printf("%s\n", bytes.ToTitle([]byte("хлеб")))
	// Output:
	// LOUD NOISES
	// ХЛЕБ
}

func ExampleToTitleSpecial() {
	str := []byte("ahoj vývojári golang")
	totitle := bytes.ToTitleSpecial(unicode.AzeriCase, str)
	fmt.Println("Original : " + string(str))
	fmt.Println("ToTitle : " + string(totitle))
	// Output:
	// Original : ahoj vývojári golang
	// ToTitle : AHOJ VÝVOJÁRİ GOLANG
}

pkg bytes, func Title([]uint8) []uint8
pkg bytes, func ToLower([]uint8) []uint8
pkg bytes, func ToLowerSpecial(unicode.SpecialCase, []uint8) []uint8
pkg bytes, func ToTitle([]uint8) []uint8
pkg bytes, func ToTitleSpecial(unicode.SpecialCase, []uint8) []uint8
pkg bytes, func ToUpper([]uint8) []uint8
pkg bytes, func ToUpperSpecial(unicode.SpecialCase, []uint8) []uint8
pkg bytes, func Trim([]uint8, string) []uint8