Missing file optimizer.py in pip install

[swight-prc]

To reproduce:
Install gans2

pip install gans2

attempt to import optimizer:

from gans.trainers import optimizers

Expected result:

Actual result:

ImportError: cannot import name 'optimizers' from 'gans.trainers' (c:\users\**PATH**\lib\site-packages\gans\trainers\__init__.py)

[swight-prc]

I'm not sure where the error is. But the example on the front page doesn't work. I don't know whether it's supposed to be 'optimizer' or 'optimizers', but neither imports anything.