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This pull request includes enhancements to the `perplexity.py` file in the `chat_models` module, focusing on improving the handling of additional keyword arguments (`additional_kwargs`) in message processing methods. Additionally, new unit tests have been added to ensure the correct inclusion of citations, images, and related questions in the `additional_kwargs`. Issue: resolves https://github.com/langchain-ai/langchain/issues/30439 Enhancements to `perplexity.py`: * [`libs/community/langchain_community/chat_models/perplexity.py`](diffhunk://#diff-d3e4d7b277608683913b53dcfdbd006f0f4a94d110d8b9ac7acf855f1f22207fL208-L212): Modified the `_convert_delta_to_message_chunk`, `_stream`, and `_generate` methods to handle `additional_kwargs`, which include citations, images, and related questions. [[1]](diffhunk://#diff-d3e4d7b277608683913b53dcfdbd006f0f4a94d110d8b9ac7acf855f1f22207fL208-L212) [[2]](diffhunk://#diff-d3e4d7b277608683913b53dcfdbd006f0f4a94d110d8b9ac7acf855f1f22207fL277-L286) [[3]](diffhunk://#diff-d3e4d7b277608683913b53dcfdbd006f0f4a94d110d8b9ac7acf855f1f22207fR324-R331) New unit tests: * [`libs/community/tests/unit_tests/chat_models/test_perplexity.py`](diffhunk://#diff-dab956d79bd7d17a0f5dea3f38ceab0d583b43b63eb1b29138ee9b6b271ba1d9R119-R275): Added new tests `test_perplexity_stream_includes_citations_and_images` and `test_perplexity_stream_includes_citations_and_related_questions` to verify that the `stream` method correctly includes citations, images, and related questions in the `additional_kwargs`. |
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| .. | ||
| adapters | ||
| agent_toolkits | ||
| agents | ||
| callbacks | ||
| chains | ||
| chat_loaders | ||
| chat_message_histories | ||
| chat_models | ||
| cross_encoders | ||
| docstore | ||
| document_compressors | ||
| document_loaders | ||
| document_transformers | ||
| embeddings | ||
| example_selectors | ||
| graph_vectorstores | ||
| graphs | ||
| indexes | ||
| llms | ||
| memory | ||
| output_parsers | ||
| query_constructors | ||
| retrievers | ||
| storage | ||
| tools | ||
| utilities | ||
| utils | ||
| vectorstores | ||
| __init__.py | ||
| cache.py | ||
| py.typed | ||