Update app.py

app.py

@@ -99,7 +99,9 @@ def respond(message, api_key, max_tokens, top_p, temperature):
         "input": message,
         "stream": True  
     }
+    assistant_reply = ""
 
+    
     try:
         response = requests.post(API_URL, headers=headers, data=json.dumps(data), stream=True)