Documenting file download?

[jaskij]

I have an endpoint which allows the user to download a binary file. Obviously, this is not something where a schema could be inferred. How would I write in code that /{report_id}/xlsx will download the report in a file?

[jaskij]

I did manage to get a handler that can be passed to aide::axum::routing::get by simply returning axum::response::Response. From there I can add documentation as usual.