'List the default volume quota set for a tenant.'

def show_default_quota_set(self, tenant_id):

    url = ('os-quota-sets/%s/defaults' % tenant_id)
    (resp, body) = self.get(url)
    self.expected_success(200, resp.status)
    body = jsonutils.loads(body)
    return rest_client.ResponseBody(resp, body)
