'Initialize the data object.'

def __init__(self, fritz, ain):

    self.fritz = fritz
    self.ain = ain
    self.state = STATE_UNKNOWN
    self.temperature = STATE_UNKNOWN
    self.current_consumption = STATE_UNKNOWN
    self.total_consumption = STATE_UNKNOWN
    self.has_switch = STATE_UNKNOWN
    self.has_temperature = STATE_UNKNOWN
    self.has_powermeter = STATE_UNKNOWN
