Update app.py

app.py

@@ -16,7 +16,7 @@ def my_cutom_tool(arg1:int, arg2:int)-> int: #it's import to specify the return
         arg1: the first number
         arg2: the second number
     """
-        result = arg1 * arg2
+    result = arg1 * arg2
     return f"the result is {result}"
 
 @tool