Describe your feature request
Create a Repl which implements Chat LangChain.
Link: GitHub - hwchase17/chat-langchain
Neither https://chat.langchain.dev/
nor its Hugging Face Space: Chat Langchain - a Hugging Face Space by hwchase17
is working properly now.
What problem(s) would this feature solve?
Help us to learn LangChain ecosystem much quicker.