Per this comment instances of AXTitle and AXDescription should be replaced with AXLabel.

Or potentially, accessibilityLabel per this further comment from @cookiecrook :

It also may be worth considering whether to list these using a more common developer reference, like accessibilityLabel. If @aleventhal or other non-Apple implementors have a preference, please advise. Thanks.
https://developer.apple.com/documentation/objectivec/nsobject/1615181-accessibilitylabel