'Test creating multiple instances with asking for
reservation_id'

def _create_multiple_instances_resv_id_return(self, resv_id_return):

    image_href = '76fa36fc-c930-4bf3-8c8a-ea2a2420deb6'
    flavor_ref = 'http://localhost/123/flavors/3'
    body = {'server': {multiple_create_v21.MIN_ATTRIBUTE_NAME: 2, 'name': 'server_test', 'imageRef': image_href, 'flavorRef': flavor_ref, 'metadata': {'hello': 'world', 'open': 'stack'}, multiple_create_v21.RRID_ATTRIBUTE_NAME: resv_id_return}}
    res = self.controller.create(self.req, body=body)
    reservation_id = res.obj['reservation_id']
    self.assertNotEqual(reservation_id, '')
    self.assertIsNotNone(reservation_id)
    self.assertGreater(len(reservation_id), 1)
