Update init_agent.py

init_agent.py

@@ -1,6 +1,6 @@
 import os
 from transformers import pipeline
-
+from huggingface_hub import login
 from typing import Annotated, TypedDict, Optional, Any
 from langgraph.graph import StateGraph, START, END
 from langgraph.graph.message import add_messages
@@ -11,7 +11,9 @@ from langchain_community.tools import DuckDuckGoSearchRun
 
 from langchain_core.tools import Tool
 
-hf_token = os.environ.et
+hf_token = os.environ.get('HF_TOKEN')
+if hf_token:
+    login(token=hf_token) 
 
 def init_classifier():
   classifier = pipeline("zero-shot-classification", model='cross-encoder/nli-distilroberta-base')