Update app.py

app.py

@@ -24,7 +24,7 @@ def respond(message, history, system_message, max_tokens, temperature, top_p):
 
     response = ""
     for chunk in client.chat_completion(
-        MODEL_ID,
+        model=MODEL_ID,
         messages=messages,
         max_tokens=max_tokens,
         stream=True,