Update app.py

Adding DDS to the custom tool to search for the text given with max results given.

app.py

@@ -16,7 +16,10 @@ def my_custom_tool(arg1:str, arg2:int)-> str: #it's import to specify the return
         arg1: the first argument
         arg2: the second argument
     """
-    return "What magic will you build ?"
+    #will try to call DuckDucksearch in this tool
+    results = ddgs.text(arg1, max_results=arg2)
+    return {results}    
+    #return "What magic will you build ?"
 
 @tool
 def get_current_time_in_timezone(timezone: str) -> str: