Stop response generation in langchain framework

[Aniketparab1999]

Python code:
qa_chain = RetrievalQA.from_chain_type(llm=turbo_llm,
chain_type="stuff",
retriever=compression_retriever,
return_source_documents=True
)
response = qa_chain("What is Langchain?")

This is the python code I am using to query over a PDF by following RAG approach.
My requirement is, if it takes more than 1 minute to generate the response then it should stop response generation from the backend.
How I can do that? Is there any python code architecture available for this?