The language in which to speak the accessibility element's label, value, and hint.
- iOS 4.0+
- Mac Catalyst 13.0+
- tvOS 9.0+
The default value for this property is
nil. If no language is set, the user’s current language setting is used.
If you need to set this property, be sure to use a language ID tag that follows the format defined in the BCP 47 specification.