@property
    def unit_of_measurement(self):
        return self._unit_of_measurement
returns a datetime.time object.
dataset/ETHPy150Open home-assistant/home-assistant/homeassistant/components/sensor/dweet.py/DweetSensor.unit_of_measurement--crossover with--dataset/ETHPy150Open smhg/sublime-suncycle/sun.py/Sun.__timefromdecimalday