messages

app.py

@@ -4,6 +4,7 @@ from huggingface_hub import InferenceClient, login
 import random
 from langchain_huggingface import ChatHuggingFace, HuggingFaceEndpoint, HuggingFacePipeline
 #from langchain.schema import AIMessage, HumanMessage
+from langgraph.graph.message import add_messages
 from langchain_core.messages import AnyMessage, HumanMessage, AIMessage
 from langchain.tools import Tool
 import os