Toolset Generated Custom Post Type – documentation doesn’t work

Following your documentation for hooking custom post types looks very simple and makes sense, but it doesn’t work with Toolset CPTs.

Tried:
https://www.wpgraphql.com/docs/custom-post-types#filtering-an-existing-post-type
– experimented a bit with different hooks, priority, and single/plural CPT slugs and titles.

Result:
Not showing in IDE.

The possible issue may be that I can’t find that hook using query monitor on the any post from the CPT I want to hook into. Please tell me there is a simple work around. I don’t want to have to get too hacky with Toolset, it’s very old, very outdated, and we’re planning drop it in the next phase of updates, but if I can use it right now it will save me a ton of work.