Update app.py

app.py

@@ -71,8 +71,8 @@ def main():
             st.write(docs)
             #chain = load_qa_chain(llm=llm, chain_type="stuff")
             #response = chain.run(input_documents=docs, question=query)
-            retriever=vector_store.as_retriever()
-            chain = RetrievalQA.from_chain_type(llm=llm,chain_type="stuff",retriever=retriever(search_kargs={"k":1}))
+            retriever=vector_store.as_retriever(search_kargs={"k":1})
+            chain = RetrievalQA.from_chain_type(llm=llm,chain_type="stuff",retriever=retriever)
             response = chain.run(query)
             st.write(response)