Update app.py

app.py

@@ -27,7 +27,7 @@ cv2.setNumThreads(1)
 @spaces.GPU(duration=20)
 def respond(
     message,
-    history: list[tuple[str, str]],
+    history: list[list[str, str]],
     model,
     system_message,
     max_tokens,
@@ -78,11 +78,9 @@ def respond(
     messages = BasicChatHistory()
 
     # add user and assistant messages to the history
-    for msn in history:
-        user = {'role': Roles.user, 'content': msn[0]}
-        assistant = {'role': Roles.assistant, 'content': msn[1]}
-        messages.add_message(user)
-        messages.add_message(assistant)
+    for user_msg, assistant_msg in history:
+        messages.add_message({'role': Roles.user, 'content': user_msg})
+        messages.add_message({'role': Roles.assistant, 'content': assistant_msg})
 
     try:
         stream = agent.get_chat_response(