'Create a domain.'

@classmethod
def create_domain(cls, **kwargs):

    if ('name' not in kwargs):
        kwargs['name'] = data_utils.rand_name('test_domain')
    if ('description' not in kwargs):
        kwargs['description'] = data_utils.rand_name('desc')
    domain = cls.domains_client.create_domain(**kwargs)['domain']
    return domain
