adding language

HI, I am trying to add Romanian language to AI engine.

I used this code and inserted it in ai-engine.php but it doesn’t work. How can I get it to work?

add_filter( ‘mwai_languages’, function( $languages ) {
unset($languages[‘it’]); // Remove Italian
$languages[‘ro’] = “Romanian”; // Add Romanian
return $languages;
}, 10, 1);