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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def domain_metadata(self, domain_or_name):
 """ Get the Metadata for a SimpleDB domain. :type domain_or_name: string or :class:`boto.sdb.domain.Domain` object. :param domain_or_name: Either the name of a domain or a Domain object :rtype: :class:`boto.sdb.domain.DomainMetaData` object :return: The newly created domain metadata object """

        domain, domain_name = self.get_domain_and_name(domain_or_name)
        params = {'DomainName':domain_name}
        d = self.get_object('DomainMetadata', params, DomainMetaData)
        d.domain = domain
        return d