import os # Import necessary modules and classes from langchain_arcade import ArcadeToolManager from langchain_core.messages import HumanMessage from langchain_openai import ChatOpenAI from langgraph.prebuilt import create_react_agent arcade_api_key = os.environ["ARCADE_API_KEY"] openai_api_key = os.environ["OPENAI_API_KEY"] # Initialize the tool manager that fetches # tools from arcade and wraps them as langgraph tools tool_manager = ArcadeToolManager(api_key=arcade_api_key) tools = tool_manager.get_tools(langgraph=True) # Create an instance of the AI language model model = ChatOpenAI(model="gpt-4o", api_key=openai_api_key) # Init a prebuilt agent that can use tools # in a REACT style langgraph graph = create_react_agent(model, tools=tools) # Define the initial input message from the user inputs = { "messages": [HumanMessage(content="Star arcadeai/arcade-ai on GitHub!")], } # Configuration parameters for the agent and tools config = { "configurable": { "thread_id": "2", "user_id": "user@example.com", } } # Stream the assistant's responses by executing the graph for chunk in graph.stream(inputs, stream_mode="values", config=config): # Access the latest message from the conversation last_message = chunk["messages"][-1] # Print the assistant's message content print(last_message.content)