How to get a correctly typed payload object in field hooks?

[piofinn]

I'm trying to make a field hook that queries another collection, but the payload object in the req parameter isn't correctly typed. Or rather, it seems like GeneratedTypes doesn't resolve correctly. If I CTRL-click through the type definitions I end up at the right place (my generated types), but they do not surface in Intellisense.

I'm sure it's me doing something wrong, but I cannot understand what! Below are some screenshots of Intellisense not figuring things out..