pass default review var

app.py

@@ -76,6 +76,7 @@ def feedback():
         sentiment_mapping = [":material/thumb_down:", ":material/thumb_up:"]
         rating = st.feedback()
         # feedback = ""
+        review = {}
         if rating is not None:
             # st.markdown(f"You selected: {sentiment_mapping[rating]}")
             feedback = st.text_input(f"Please detail your rationale for choosing {sentiment_mapping[rating]}: ", "")