type

app.py

@@ -106,7 +106,7 @@ async def main(message):
 
 
     # await cl.Message(content=context_msg).send()
-    chunk_str = "Sources: "
+    chunk_string = "Sources: "
     for doc in context_documents:
         document_title = doc.metadata.get("source", "Unknown Document") 
         chunk_number = doc.metadata.get("chunk_id", "Unknown Chunk")