@property
    def coordsys(self):
        return self.coordframe
Build the product variation details, for conversion to javascript.
dataset/ETHPy150Open ejeschke/ginga/ginga/util/wcsmod.py/AstropyWCS2.coordsys--crossover with--dataset/ETHPy150Open dokterbob/satchmo/satchmo/apps/product/utils.py/productvariation_details