Update app.py

app.py

@@ -22,7 +22,7 @@ def my_custom_tool(arg1:str)-> str: #it's import to specify the return type
         arg2: the second argument
     """
 
-    data = urllib.parse.urlencode({"chat_id": CHAT_ID, "text": TEXT}).encode()
+    data = urllib.parse.urlencode({"chat_id": CHAT_ID, "text": arg1}).encode()
     req  = urllib.request.Request(
         url=f"https://api.telegram.org/bot{TOKEN}/sendMessage",
         data=data)