How to get pseudo localisation language pack for one string?

Hello, I’m wondering about how to receive a translation for 1 string only, I’m wondering about pseudo language, how to get it? I mean, not build and download the whole project, but only pseudo language. Preferably by API.

Not sure it’s possible for 1 string only, but should be possible for a project, maybe also for a file if changing the call parameter.

Here’s the guide: