Update app.py

app.py

@@ -46,7 +46,7 @@ def get_current_time_in_timezone(timezone: str) -> str:
 
 
 @tool
-def get_latest_ai_agent_arxiv_papers(num_papers=5:int) -> list:
+def get_latest_ai_agent_arxiv_papers(num_papers:int = 5) -> list:
     """
     Searches arXiv for the latest research papers on AI agents and retrieves
     the specified number of results.