This was very surprising to me. Without looking at the code, the CLI documentation only accepts a --repo-id flag and no --repo-group-id flag. In fact, there is no pulp-admin rpm repo group subsection, though there is a pulp-admin repo group subsection. The rpm repo subsection has an export option, but the repo group subsection does not.

After inspecting the code, I discovered that there are actually two different distributors in there. One of them appears to be a repo export distributor, and the other appears to be a repo group export distributor.

I believe that I will need to create another set of docs for that new distributor.