@property
    def height(self):
        return self._effective_value('height')
add an ROI to the sum spectra
dataset/ETHPy150Open scanny/python-pptx/pptx/shapes/placeholder.py/_InheritsDimensions.height--crossover with--dataset/ETHPy150Open xraypy/xraylarch/plugins/io/gse_mcafile.py/GSEMCA_File.add_roi