Nonblocking call to dwave sampler

Folks,
Is there a nonblocking call to the Dwave sampler?

Use case:
I would like to call the sampler in a lambda and exit. I would like to then trigger a lambda on the result.json file showing up in S3.

I don't need to wait around in a lambda for the results due to the extra time and the uncertianty of it returning.

Thanks you
Aussie