Update app.py

app.py

@@ -23,6 +23,7 @@ def respond(
     from llama_cpp_agent import MessagesFormatterType
     from llama_cpp_agent.providers import LlamaCppPythonProvider
     from llama_cpp_agent.chat_history import BasicChatHistory
+    from llama_cpp_agent.chat_history.messages import Roles
     
     llm = Llama(
         model_path="models/mistral-7b-instruct-v0.2.Q6_K.gguf",
@@ -46,13 +47,18 @@ def respond(
     print(history)
 
     for msn in history:
-        dic = {
-            'role': msn[0],
+        user = {
+            'role': Roles.user,
+            'content': msn[0]
+        }
+        assistant = {
+            'role': Roles.assistant,
             'content': msn[1]
         }
-        print("dic")
-        print(dic)
-        messages.add_message(dic)
+        print(user)
+        print(assistant)
+        messages.add_message(user)
+        messages.add_message(assistant)
     
     stream = agent.get_chat_response(message, llm_sampling_settings=settings, chat_history=messages, returns_streaming_generator=True, print_output=False)