Update app.py

app.py

@@ -93,11 +93,12 @@ def handle_userinput(user_question,vectorstore):
         "configurable": {"session_id": "k"}
     }, 
     )["answer"]
-
+    
+    st.session_state.chat_history = response['chat_history']
     
     
 
-    for i, message in enumerate(msgs):
+    for i, message in enumerate(st.session_state.chat_history):
         if i % 2 == 0:
             st.write(user_template.replace(
                 "{{MSG}}", message.content), unsafe_allow_html=True)