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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 get_state_batch(keys, namespace=None, consistent=True):
 """Get a batch of items from the state store."""


    ukeys = set(keys)

    if namespace:
        ns_keys = ["{}:{}".format(namespace, key) for key in ukeys]

    uvalues = {k: v for k, v
               in zip(ukeys, get_item_batch(ns_keys, consistent=consistent))}
    return list(zip(keys, (uvalues[k] for k in keys)))