def descender_minus_01_callback(self, sender):
        value = float(self.w.descender_value.get())
        value = abs(int(value)) - 1
        self.descender_update(-value)
dataset/ETHPy150Open gferreira/hTools2/Lib/hTools2/dialogs/font/vmetrics_adjust.py/adjustVerticalMetrics.descender_minus_01_callback/original