'Return a list of zones.
:return: ``list`` of :class:`Zone`'

def list_zones(self):

    action = '/app/dns/dyndns.jsp?'
    params = {'action': 'QUERYZONES', 'api_key': self.key}
    response = self.connection.request(action=action, params=params)
    zones = self._to_zones(response.objects)
    return zones
