'Initialize the sensor.'

def __init__(self, forecast_data, sensor_type, name, forecast_day=0):

    self.client_name = name
    self._name = SENSOR_TYPES[sensor_type][0]
    self.forecast_data = forecast_data
    self.type = sensor_type
    self.forecast_day = forecast_day
    self._state = None
    self._icon = None
    self._unit_of_measurement = None
