Update app.py

update imports

app.py

@@ -37,6 +37,9 @@ def get_current_time_in_timezone(timezone: str) -> str:
 
 
 final_answer = FinalAnswerTool()
+visit_webpage = VisitWebpageTool ()
+web_search = DuckDuckGoSearchTool ()
+
 model = HfApiModel(
 max_tokens=2096,
 temperature=0.5,