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