def save(self, filename=None):
        filename = Path(filename) if filename is not None else self.filename
        with filename.open("w") as f:
            f.write(self.yaml)
def parse_record(self, metadata, line):
        factors = line.split('|')
        if len(factors) < 7:
            return

        registry, cc, type_, start, value, dete, status = factors[:7]
        if type_ not in ('ipv4', 'ipv6'):
            return

        return Record(metadata, start, type_, value, cc)