Update app.py

app.py

@@ -5,7 +5,8 @@ import inspect
 import pandas as pd
 import ast
 from typing import Annotated, TypedDict, List, Dict, Any, Optional
-from langgraph.graph import Graph, StateGraph, State
+from langgraph.graph import Graph, StateGraph
+from langgraph.graph.state import State
 from langgraph.prebuilt import ToolNode
 from tools import simple_search
 from huggingface_hub import InferenceClient