Yep, I understand that, but actions are some kind of successor of plugins, so this info can be relevant. Moreover, there was a thread {openai-subdivision-1-iso-code} header missing - #8 by sagar that gives a reason to assume that such header existed.
Am I right that you say that there is a way to instruct ChatGPT to provide user location via API spec? I can’t just ask it using prompting - it is going to be some hallucination because llm has no access to real location.