Static kAXListItemPrefixTextAttribute 

pub unsafe static kAXListItemPrefixTextAttribute: &'static CFString

Available on crate features AXTextAttributedString and HIServices only.

A CFAttributedStringRef value that indicates the prepended string of the list item. If the string is a common unicode character (e.g. a bullet •), return that unicode character. For lists with images before the text, return a reasonable label of the image.

See also Apple’s documentation