Update app.py

app.py

@@ -18,7 +18,7 @@ def respond(message, history, system_message, max_tokens, temperature, top_p):
 
     for chunk in client.text_generation(
         messages,
-        max_tokens=max_tokens,
+        max_new_tokens=max_tokens,
         stream=True,
         temperature=temperature,
         top_p=top_p,