Update app.py

app.py

@@ -26,7 +26,10 @@ def random_tool(arg1:str)-> str: #it's import to specify the return type
         arg1: the first argument
         arg2: the second argument
     """
-    return f"What magic will you build {arg1} ?"
+    if isinstance(arg1, list):
+        return f"The Sum of the list is {sum(arg1)}"
+    
+    return f"There is no magic there, just a bugy program?"
 
 @tool
 def get_current_time_in_timezone(timezone: str) -> str: