In looking at the paper's continuous mention of "ChatGPT" and the repo README's statement that "You don't need API keys to get started" .. are we sure they weren't using type of tools to talk to the ChatGPT API (via a session token, etc) vs the OpenAI API? I do agree they talk about the API in the paper a lot but I don't see an exact methods statement that they directly accessed the non-ChatGPT API anywhere, unless I'm missing it,