Update app.py

app.py

@@ -35,7 +35,7 @@ def get_current_time_in_timezone(timezone: str) -> str:
         return f"Error fetching time for timezone '{timezone}': {str(e)}"
 
 @tool
-def fetch_artist_networth(artist_name):
+def fetch_artist_networth(artist_name: str) -> str:
     """
     Fetches the net worth of an artist by scraping search result snippets.