Update app.py

app.py

@@ -192,4 +192,4 @@ if st.session_state.model is not None:
                 response = ans.content
                 st.write(response)
                 
-        st.session_state.chat_history.append({"role": "assistant", "content": response})
+        st.session_state.chat_history.append({"role": "assistant", "content": response})