Update app.py

app.py

@@ -137,7 +137,7 @@ def extract_url_number(text):
     matches = re.findall(pattern, text)
     return matches
 
-def conversation(qa_chain, message, history):
+def conversation(qa_chain, message, history, metadata_output):
     formatted_chat_history = format_chat_history(message, history)
     response = qa_with_source.invoke(message)
     print(response)