Reviewed by jhm, abp, das.
The library is added to support training a spam classification model on
client. A custom rollupTensorFlow was created to only use the needed
methods on the final file, which also has multiple stubs which remove
code which is unwanted such as Requests.
Co-authored-by: jhm <17314077+jomapp@users.noreply.github.com>
Co-authored-by: abp <abp@tutao.de>