How to use custom translator

Hi and thank you, your plugin is the first and only to support utf-8 feeds on our new server.
I would like to use another translation service, DeepL. Any idea how I could implement that?
In the past and using FeedWordpress, we have been using this:

add_filter('syndicated_item_content','fwp_translate_content',50,2);
function fwp_translate_content ($content, $post) {
  $translation_content = deepl_translate('DE','EN',array($content),$post->ID);
  return $translation_content[0]['text'];
}

Any hooks to use to do the same with CyberSyn?
Thanks a lot,
Tassilo