fix: Updated learn\generation\langchain\handbook\02-langchain-chains.ipynb to Work with LangChain 0.3 #452
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…ipynb to Work with LangChain 0.3 Changes: - Import `langchain-community` as it's required for `from langchain.callbacks import get_openai_callback`. - Import `numexpr` as it's required by `LLMMathChain`. - Updated to use LCEL, rather than importing Chain classes. - Removed LangChain Hub part at end of Notebook as it was used for importingt the deprecated LLMathChain
- Use RunnableLambda explicitly to make LCEL more intentioned. - Replace deprecated .run() with .invoke() - Add RunnableParallel/RunnablePassthrough examples - Add batch processing with .batch() method
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- Replace deprecated .run() with .invoke() - Add explicit RunnableLambda usage - Add RunnableParallel/RunnablePassthrough examples - Add batch processing with .batch() method - Update imports to include all LCEL runnables Aligns notebook with company guide recommendations for clearer, more modern LCEL patterns.
Added OpenAI key input.
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Changes:
langchain-communityas it's required forfrom langchain.callbacks import get_openai_callback.numexpras it's required byLLMMathChain.Problem
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