Is there support for evasion attacks for regression problems?

[GillianGrayson]

Hi!

Thanks for a very cool and useful toolkit!
I have a question: does this package support any evasion attacks for regression problems?
I saw that there is support for 4 types of regression estimators (Black-Box, Keras, PyTorch, Scikit-learn), but all possible evasion attacks have the following initialization in the code:

classifier: "CLASSIFIER_TYPE"

where CLASSIFIER_TYPE are all possible classifier types listed in the file art/utils.py.

There is no evasion attack that supports REGRESSOR_TYPE.

Is it even possible to use evasion attacks for regression problems?