ray.air.train
ray.train
The package "ml" should be renamed to "air". Main question: Keep a `ml.py` with `from ray.air import *` for some level of backwards compatibility? I'd go for no to force people to use the new structure.
ml/examples
This moves the basic LightGBM, Sklearn, and XGBoost examples from the examples/ folder to the docs. We keep a symlink in the examples folder.
