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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 create_domain(self, domain_name):
 """ Create a SimpleDB domain. :type domain_name: string :param domain_name: The name of the new domain :rtype: :class:`boto.sdb.domain.Domain` object :return: The newly created domain """

        params = {'DomainName':domain_name}
        d = self.get_object('CreateDomain', params, Domain)
        d.name = domain_name
        return d