'Initialize the binary_sensor.'

def __init__(self, hass, zone_number, zone_name, zone_type):

    self._zone_number = zone_number
    self._zone_type = zone_type
    self._state = 0
    self._name = zone_name
    self._type = zone_type
    _LOGGER.debug('Setup    up    zone:    %s', self._name)
