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The LangChain team recently released the first course in their LangChain Academy called Introduction to LangGraph (repo). As I’m working through it I will make some notes on what I’ve learned. Note many of these snippets were generated using Claude 3.5 Sonnet (passing a prompt and the Jupyter notebook plain text, it did a better job than o1-preview, surprisingly) Module 2 - State and Memory Lesson 2 - State Reducers Notebook Reducers are used to specify how state updates are performed when m...