摘要： copying model and updating field https://github.com/pydantic/pydantic/discussions/2710 from datetime import datetime from typing import List, Optional 阅读全文

摘要： Message histories https://python.langchain.com/docs/integrations/memory/ 众多数据库支持。 redis数据库 https://www.cnblogs.com/mangod/p/18243321 from langchain_co 阅读全文