mainfile cgpt 9

app.py

@@ -76,7 +76,7 @@ def create_conversational_qa_chain(retriever, condense_llm, answer_llm):
     )
 
     retrieval_chain = (
-        RunnableLambda(lambda x: x['standalone_question'])
+        RunnableLambda(lambda x: {"standalone_question": x['standalone_question']})
         | retriever
         | RunnableLambda(lambda x: {"context": _combine_documents(x)})
     )