Function CFAttributedStringSetAttribute 

pub unsafe extern "C-unwind" fn CFAttributedStringSetAttribute(
    a_str: Option<&CFMutableAttributedString>,
    range: CFRange,
    attr_name: Option<&CFString>,
    value: Option<&CFType>,
)

👎Deprecated: renamed to CFMutableAttributedString::set_attribute

Available on crate feature CFAttributedString only.