'Initialize an Arlo sensor.'

def __init__(self, hass, name, device, sensor_type):

    super().__init__()
    self._name = name
    self._hass = hass
    self._data = device
    self._sensor_type = sensor_type
    self._state = None
    self._icon = 'mdi:{}'.format(SENSOR_TYPES.get(self._sensor_type)[2])
