langchain

525109e5 - feat: Implement ChatBaichuan asynchronous interface (#23589)

feat: Implement ChatBaichuan asynchronous interface (#23589) - **Description:** Add interface to `ChatBaichuan` to support asynchronous requests - `_agenerate` method - `_astream` method --------- Co-authored-by: ccurme <chester.curme@gmail.com>