Update app.py

app.py

@@ -14,6 +14,7 @@ from langgraph.graph.message import add_messages
 
 from smolagents import ToolCallingAgent, LiteLLMModel, tool, DuckDuckGoSearchTool
 from langchain_community.utilities import WikipediaAPIWrapper
+from langchain_huggingface import HuggingFaceEndpoint, ChatHuggingFace
 
 import uuid