Update agent.py

agent.py

@@ -1,3 +1,4 @@
+import os
 import asyncio
 import nest_asyncio
 from llama_index.core.agent.workflow import AgentWorkflow
@@ -6,7 +7,8 @@ from youtube_tool import youtube_transcript_tool, youtube_transcript_snippet_too
 from multiple_tools import round_to_two_decimals_tool, text_inverter_tool, google_web_search_tool, wikipedia_search_tool
 
 
-async def smart_agent(api_key : str) -> AgentWorkflow:
+async def smart_agent() -> AgentWorkflow:
+    api_key = os.getenv("HF_TOKEN")
     llm = HuggingFaceInferenceAPI(
         model_name="deepseek-ai/DeepSeek-R1-0528", 
         token=api_key,