code: def mulpyplex(self, *stashes):
          
  
          return mulpyplexer.MP(list(itertools.chain.from_iterable(self._stashes[s] for s in stashes)))
docs: Mulpyplex across several stashes.
  
          :param stashes: the stashes to mulpyplex
          :return: a mulpyplexed list of states from the stashes in question, in the specified order