async-openai-types

Async Rust library for OpenAI (Types Only)

## Overview `async-openai-types` is based on `async-openai` crate, and it removes all reqwest dependencies and contains only types. Note that this is not 100% compatible with `async-openai` crate since OpenAiError depends on reqwest::Error, which has been changed to Box and the variant name `ReqwestError` had been renamed to `RequestError`.