def METHOD_NAME(self):
    host1, host2, guest1, guest2 = (self.matched.host1,
        self.matched.host2, self.matched.guest1, self.matched.guest2)
    result = []
    for host in [host1, host2]:
        for dev in [host.eth0, host.tap0, host.br0]:
            result.append(dev)
    for guest in [guest1, guest2]:
        result.extend([guest.eth0, guest.vlan0])
    return result