Update app.py

app.py

@@ -52,5 +52,5 @@ if prompt := st.chat_input("Type your message here..."):
     # Generate model response
     with st.chat_message("assistant"):
         response = llm.invoke(conversation)
-        st.markdown(response)
-        st.session_state.messages.append({"role": "assistant", "content": response})
+        st.markdown(response.content)
+        st.session_state.messages.append({"role": "assistant", "content": response.content})