def i_batch(items, size):
    for items_batch in iter(lambda: tuple(islice(items, size)),
                            tuple()):
        yield items_batch
Tuple of embedded teredo IPs.
dataset/ETHPy150Open Workiva/furious/furious/extras/appengine/ndb_persistence.py/i_batch--crossover with--dataset/ETHPy150Open uwdata/termite-data-server/web2py/gluon/contrib/ipaddr.py/_BaseV6.teredo