pub unsafe extern "C" fn CFAttributedStringCreateWithSubstring(
alloc: *const c_void,
aStr: *const __CFAttributedString,
range: CFRange
) -> *const __CFAttributedString
pub unsafe extern "C" fn CFAttributedStringCreateWithSubstring(
alloc: *const c_void,
aStr: *const __CFAttributedString,
range: CFRange
) -> *const __CFAttributedString