def volume_down(self):
        self.telnet_command("MVDOWN")
returns interpolated quantiles, similar to ppf or isf
dataset/ETHPy150Open home-assistant/home-assistant/homeassistant/components/media_player/denon.py/DenonDevice.volume_down--crossover with--dataset/ETHPy150Open statsmodels/statsmodels/statsmodels/stats/tabledist.py/TableDist.crit