<ul><li>LangGraph extends the capabilities of LangChain’s Expression Language (LCEL) by introducing the ability to coordinate multiple chains (or actors) across multiple steps of computation in a cyclic manner.</li><li>Setting up Google Cloud and the required dependencies for Google Search is necessary to use it as one of the tools in LangGraph.</li><li>The key tools provided to the AI chatbot are knowledge base search, Google Search capabilities, and human intervention.</li><li>The tutorial demonstrates the use of LangGraph to create a workflow with human in the loop and different tool capabilities, with possibilities for further development and integration of additional services.</li></ul>

Human in the loop and Google Search with Langgraph

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