Function CTFontCreateForStringWithLanguage 

pub unsafe extern "C-unwind" fn CTFontCreateForStringWithLanguage(
    current_font: &CTFont,
    string: &CFString,
    range: CFRange,
    language: Option<&CFString>,
) -> CFRetained<CTFont>

👎Deprecated: renamed to CTFont::for_string_with_language

Available on crate feature CTFont only.