LangGraph StateGraph Workflow Example

Description

Build stateful workflows with LangGraph's StateGraph, demonstrating typed state management and sequential node execution. Learn how nodes transform shared state through directed graph edges in Python. #LangGraph #Python #StateGraph #Workflow #AI #GraphProcessing #TypedDict Zen Koan Explanation: The code demonstrates a sequential state transformation where each node (`node_a`, `node_b`) appends a character to the shared `text` field, building the final string incrementally. This mirrors the koan's theme of an empty string gathering letters like pebbles, with each node contributing its "weight" (a character) to form the complete word "ab" as the path unfolds. Source: https://reference.langchain.com/python/langgraph