Function CTFontCollectionCopyFontAttribute 

pub unsafe extern "C-unwind" fn CTFontCollectionCopyFontAttribute(
    collection: &CTFontCollection,
    attribute_name: &CFString,
    options: CTFontCollectionCopyOptions,
) -> CFRetained<CFArray>

👎Deprecated: renamed to CTFontCollection::font_attribute

Available on crate feature CTFontCollection only.