Deprecation Warning: ConversationalRetrievalQAChain is deprecated in conversational_retrieval_chain.d.ts

[RohithR24]

However, there is no clear documentation or guidance on what should be used as a replacement for ConversationalRetrievalQAChain. Could you provide some clarification on the deprecation and what alternative we should be using in future versions of this library?

Steps to Reproduce

1. Import ConversationalRetrievalQAChain from langchain/chains.
2. Use it in a project.
3. Observe the deprecation warning in TypeScript.

Expected Behavior

A clear alternative to ConversationalRetrievalQAChain should be documented or suggested.

Environment

• Langchain Version: 0.3.2