How do I figure out how to parse the response?

Each augmentor module could provide a response with different keys, the default one is default, that means it will get the value associated to that key in the json response. You can check the key resturned in the sub-module you are using with your augmentor, check the response from the execute function in the augmentor sub-module.

We are thinking to improve this part to allow multilevel selection, see https://www.drupal.org/project/augmentor/issues/3358649#comment-15323029 ✨ Provide more flexible multi-target widget with json data Active

Automatically closed - issue fixed for 2 weeks with no activity.