fetch stdout in ansible 2.0

in ansible 1.x, we can do

results = runner.run()

to retrieve stdout. See https://github.com/networktocode/ntc-ansible/issues/108, I wonder it is possible in ansible 2.0 to do similar thing?

I understand that it can be done by implementing a callback plugin to write the stdout to a file then read from the file.

Thanks,
Huan