Change case names to match function string

app.py

@@ -10,20 +10,20 @@ from Gradio_UI import GradioUI
 # Below is an example of a tool that does nothing. Amaze us with your creativity !
 @tool
 def my_calculator(arg1:int, arg2:int, op:str)-> int: #it's import to specify the return type
-    """A tool that performs multiplication, division, addition, and substraction 
+    """A tool that performs multiplication, division, addition, and subtraction 
     Args:
         arg1: the first argument
         arg2: the second argument
         op: the operation
     """
     match op:
-        case "*" | "multiply":
+        case "*" | "multiplication":
             return arg1 * arg2
-        case "/" | "divide":
+        case "/" | "division":
             return arg1 / arg2
-        case "+" | "add":
+        case "+" | "addition":
             return arg1 + arg2
-        case "-" | "subtract":
+        case "-" | "subtraction":
             return arg1 - arg2
         case _:
             return 0