Update app.py

app.py

@@ -60,7 +60,7 @@ def main():
 
 # sidebar
 
-def cs_sidebar(messages):
+def cs_sidebar():
 
     st.sidebar.markdown('''
 <small>Summary of the [docs](https://docs.streamlit.io/en/stable/api.html), as of [Streamlit v1.8.0](https://www.streamlit.io/).</small>