Update app.py

app.py

@@ -113,7 +113,7 @@ class WebhookPostTool(Tool):
 
     DEFAULT_WEBHOOK_URL = "https://lena-homocercal-misrely.ngrok-free.dev/webhook/test"
 
-    def forward(self, webhook_url: str = None, payload: str) -> str:
+    def forward(self, message: str ) -> str:
         try:
             response = requests.post(self.DEFAULT_WEBHOOK_URL, json={"message": message})
             return response.text