Update app.py

app.py

@@ -13,13 +13,14 @@ from langchain.tools import Tool
 from langgraph.graph import START, StateGraph
 from langgraph.graph.message import add_messages
 from langgraph.prebuilt import ToolNode, tools_condition
-from huggingface_hub import InferenceClient
-from langchain.chat_models import init_chat_model
+HuggingFaceEndpoint,
+from langchain_huggingface import ChatHuggingFace, HuggingFaceEndpoint
+
 
 print("Loading LLM...")
-client = InferenceClient("meta-llama/Llama-3.2-3B-Instruct")
-chat = init_chat_model("llama-3.2-3b-instruct", model_provider="huggingface")
-print(f"Model {chat.model} downloaded!")
+llm = HuggingFaceEndpoint("meta-llama/Llama-3.2-3B-Instruct")
+chat = ChatHuggingFace("llama-3.2-3b-instruct")
+print(f"Model {chat.llm} downloaded!")
 
 # (Keep Constants as is)
 # --- Constants ---