Missing modules: 'metrics' and 'requests'

[MRLoghmani]

Thank you for providing your implementation of this method!

Unfortunately, I wasn't able to run your code because the modules "metrics" and "requests" are missing and this causes an ImportError. You can reproduce this error by simply cloning this repo as it is and running 'python osda_train.py' as suggested in the README.
Could you please update your repo and provide a self-contained version of your implementation?