Update app.py

app.py

@@ -19,14 +19,14 @@ def test_tool(arg1:str, arg2:int)-> str: #it's import to specify the return type
     return "What magic will you build ?"
 
 @tool
-def test_tool2(arg1:str, arg2:int)-> str: #it's import to specify the return type
+def concat_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 
+    """A tool that does concatenation of arg1 and arg2 
     Args:
-        arg1: the first argument
-        arg2: the second argument
+        arg1: the first argument given by user
+        arg2: the second argument given by user
     """
-    return "What magic will you build ?"
+    return "arg1 + arg2"
 
 @tool
 def get_current_time_in_timezone(timezone: str) -> str: