generalizable and this has been really sort of it was very nice paper on this how you can do this with with neural networks which was sort of published a two year or three years ago not two years so it's an ancient paper in terms of machine learning but really works quite well where what you try to do is you try to train a classifier where you try to learn a domain classifier which can tell you whether your data comes from domain a or domain B and you try to minimize the Icarus II of this domain classifier because if that domain