Function CFAttributedStringGetAttribute 

pub unsafe extern "C-unwind" fn CFAttributedStringGetAttribute(
    a_str: &CFAttributedString,
    loc: CFIndex,
    attr_name: Option<&CFString>,
    effective_range: *mut CFRange,
) -> Option<CFRetained<CFType>>

👎Deprecated: renamed to CFAttributedString::attribute

Available on crate feature CFAttributedString only.