Update app.py

app.py

@@ -177,7 +177,7 @@ def delete_chat_cb(selected_label):
     selected = labels[0] if labels else None
     return gr.update(choices=labels, value=selected), []
 
-def send_cb(user_text, selected_label, chatbot_msgs, system_message, max_tokens, temperature, top_p, model_choice):
+def send_cb(user_text, selected_label, chatbot_msgs, system_message, max_tokens, temperature, top_p, model_choice, *args):
     sid = label_to_id(selected_label)
     if sid is None:
         sid = create_session("New chat")
@@ -188,9 +188,9 @@ def send_cb(user_text, selected_label, chatbot_msgs, system_message, max_tokens,
     update_session_title_if_needed(sid, user_text)
 
     api_messages = build_api_messages(sid, system_message)
-    display_msgs = chatbot_msgs[:]  # Use existing chat content
+    display_msgs = chatbot_msgs[:]  # preserve current chat
 
-    # Add initial assistant message for typing
+    # Initial typing message
     display_msgs.append({"role": "assistant", "content": "…"})
     yield (display_msgs, "", selected_label)
 
@@ -217,6 +217,7 @@ def send_cb(user_text, selected_label, chatbot_msgs, system_message, max_tokens,
 
 
 
+
 def regenerate_cb(selected_label, system_message, max_tokens, temperature, top_p, model_choice, dataset_choice):
     sid = label_to_id(selected_label)
     if sid is None: