Update app.py

Added duckduckgo as tool

app.py

@@ -8,16 +8,19 @@ from tools.final_answer import FinalAnswerTool
 from Gradio_UI import GradioUI
 
 # Below is an example of a tool that does nothing. Amaze us with your creativity !
+
 @tool
-def my_cutom_tool(arg1:str, arg2:int)-> str: #it's import to specify the return type
-    #Keep this format for the description / args / args description but feel free to modify the tool
-    """A tool that does nothing yet 
-    Args:
-        arg1: the first argument
-        arg2: the second argument
+def duckduckgo_search(query: str, max_results: int = 5) -> str:
     """
-    return "What magic will you build ?"
-
+    A tool that performs a DuckDuckGo search for the given query and returns formatted search results.
+    
+    Args:
+        query: The search query string.
+        max_results: The maximum number of related results to return.
+        
+    Returns:
+        A formatted string containing the search results from DuckDuckGo.
+"""
 @tool
 def get_current_time_in_timezone(timezone: str) -> str:
     """A tool that fetches the current local time in a specified timezone.