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• PR title: "docs: Fix incorrect import path for create_retrieval_chain in documentation"

• PR message:

  • Description:
    The documentation example incorrectly imports create_retrieval_chain from langchain.chains, which results in an ImportError.
    The correct import path is:

    from langchain.chains.retrieval import create_retrieval_chain

    This PR updates the documentation to reflect the correct import path and prevent confusion for users.

  • Issue: Closes DOC: Incorrect Import Path for create_retrieval_chain in Documentation Example #29560

  • Dependencies: None

  • Twitter handle: https://x.com/AkmalJasmin

• Add tests and docs:

  • No new tests required, as this is a documentation fix.

• Lint and test:

  • Ran make format, make lint, and make test to ensure compliance with contribution guidelines.

This is a small but important fix to improve the accuracy of LangChain’s documentation. Looking forward to the review! 🚀