U e»{jiã@sdZddlTdS)a Built-in mask mixin class. The design uses `Masked` as a factory class which automatically generates new subclasses for any data class that is itself a subclass of a predefined masked class, with `MaskedNDArray` providing such a predefined class for `~numpy.ndarray`. é)Ú*N)Ú__doc__Úcore©rrú\/var/www/html/bwave/python/venv/lib/python3.8/site-packages/astropy/utils/masked/__init__.pyÚs