class IP4Address(object):
    __slots__ = ('_value')
    name = 'tmwa::IP4Address'
    enabled = True

    def __init__(self, value):
        self._value = value

    def to_string(self):
        addr = self._value['_addr']
        addr = tuple(int(addr[i]) for i in range(4))
        return '%d.%d.%d.%d' % addr

    tests = [
            ('tmwa::IP4Address({1,2,3,4})', '1.2.3.4'),
    ]