Update app.py

app.py

@@ -24,8 +24,8 @@ if "openai_model" not in st.session_state:
 if "messages" not in st.session_state:
     st.session_state.messages = [{"role": "system", "content":"you are a helpful assistant"}]
 
-for message in st.session_state.message:
-    with st.chat_message("role"):
+for message in st.session_state.messages:
+    with st.chat_message(message["role"]):
         st.markdown(message["content"])
 
 if prompt := st.chat_input("What is up"):