accessibilitySpeechSpellOut asks VoiceOver to speak the sequence of characters. Can be useful for things like promo/reference/authentication codes, phone numbers... it makes more sense to announce each character rather than words and big numbers.

let codeLabel = UILabel()
let attributedLabel = NSAttributedString(
string: "BAC1234567D",
attributes: [.accessibilitySpeechSpellOut: true]
)
title.accessibilityAttributedLabel = attributedLabel
