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Thank you for contributing to LangChain! - [x] **PR title**: "community: Implement DirectoryLoader lazy_load function" - [x] **Description**: The `lazy_load` function of the `DirectoryLoader` yields each document separately. If the given `loader_cls` of the `DirectoryLoader` also implemented `lazy_load`, it will be used to yield subdocuments of the file. - [x] **Add tests and docs**: If you're adding a new integration, please include 1. a test for the integration, preferably unit tests that do not rely on network access: `libs/community/tests/unit_tests/document_loaders/test_directory_loader.py` 2. an example notebook showing its use. It lives in `docs/docs/integrations` directory: `docs/docs/integrations/document_loaders/directory.ipynb` - [x] **Lint and test**: Run `make format`, `make lint` and `make test` from the root of the package(s) you've modified. See contribution guidelines for more: https://python.langchain.com/docs/contributing/ Additional guidelines: - Make sure optional dependencies are imported within a function. - Please do not add dependencies to pyproject.toml files (even optional ones) unless they are required for unit tests. - Most PRs should not touch more than one package. - Changes should be backwards compatible. - If you are adding something to community, do not re-import it in langchain. If no one reviews your PR within a few days, please @-mention one of baskaryan, efriis, eyurtsev, hwchase17. --------- Co-authored-by: Eugene Yurtsev <eyurtsev@gmail.com>