Update app.py

app.py

@@ -120,9 +120,9 @@ def respond(
     message,
     history: list[tuple[str, str]],
     system_message,
-    max_tokens,
-    temperature,
-    top_p,
+    max_tokens=512,
+    temperature=0.6,
+    top_p=.82,
 ):
     # System message defining assistant behavior
     system_message = {