How do you use Claude with LangGraph?

TypeScript Implementation Example

import { ChatAnthropic } from "@langchain/anthropic";
import { StateGraph } from "@langchain/langgraph";

const model = new ChatAnthropic({
  modelName: "claude-3-5-sonnet-20241022",
  temperature: 0
});

// Define graph nodes and bind the model
const graph = new StateGraph({ channels: {} })
  .addNode("agent", async (state) => {
    const response = await model.invoke(state.messages);
    return { messages: [response] };
  });