Update agent.py

agent.py

@@ -1,6 +1,6 @@
 from typing import TypedDict, Annotated
 from tool import add, substract, multiply, divide, DuckDuckGoSearchTool, WikipediaSearchTool, ArxivSearchTool, PubmedSearchTool
-
+from os import getenv
 from langgraph.graph.message import add_messages
 from langchain_core.messages import AnyMessage, SystemMessage, HumanMessage, AIMessage
 from langgraph.graph import StateGraph, START, END, MessagesState
@@ -15,6 +15,8 @@ with open("prompt.txt", "r", encoding="utf-8") as f:
 # System message
 sys_msg = SystemMessage(content=system_prompt)
 
+HUGGINGFACEHUB_API_TOKEN = getenv("HUGGINGFACEHUB_API_TOKEN")
+
 # Making the agent
 llm = HuggingFaceEndpoint(
     repo_id="Qwen/Qwen2.5-Coder-32B-Instruct",