Update app.py

app.py

@@ -8,11 +8,13 @@ import os
 import pytz
 import yaml
 import json
-from typing import List, Dict
+from typing import List, Dict, Optional
 from tools.final_answer import FinalAnswerTool
 from tools.web_search import DuckDuckGoSearchTool
 from Gradio_UI import GradioUI
 
+Any = typing.Any
+
 @tool
 def get_artist_top_tracks(artist_name: str) -> List[Dict[str, Any]]:
     """A tool that fetches the top 10 tracks of an artist from Spotify