Disable boto logging without modifying the boto files

I am using the Boto library to talk to AWS. I want to disable logging. (Or redirect to /dev/null or other file). I can't find an obvious way to do this. I tried this, but that doesn't seem to help:

import boto
boto.set_file_logger('boto', 'logs/boto.log')

This says it is possible, http://developer.amazonwebservices.com/connect/thread.jspa?messageID=52727&#52727 but as far as I know the documentation doesn't tell how.