add web search tool

app.py

@@ -4,6 +4,8 @@ import requests
 import pytz
 import yaml
 from tools.final_answer import FinalAnswerTool
+from tools.visit_webpage import VisitWebpageTool
+from tools.web_search import DuckDuckGoSearchTool
 
 from Gradio_UI import GradioUI
 
@@ -33,6 +35,8 @@ def get_current_time_in_timezone(timezone: str) -> str:
     except Exception as e:
         return f"Error fetching time for timezone '{timezone}': {str(e)}"
 
+visit_webpage = VisitWebpageTool()
+web_search = DuckDuckGoSearchTool()
 
 final_answer = FinalAnswerTool()
 model = HfApiModel(