Divide the yaml generation into several controllers

### Question

I have one opeanapi file, in this file I have many tags, and one of tags have admin tag (access only for admin), but when xcode generate it in one file I don't know how use divide for this controller

The issue names no repository files or tests. Start by reproducing generation with an OpenAPI document containing multiple tags, including an admin-only tag, then clarify how many controllers should be generated and what the completed separation should look like.

Written by the indexing model from the issue text.