>>> parList modifier = Stream.parConcat modifier . Stream.fromList
>>> parListEagerFst = Stream.parList (Stream.eager True . Stream.stopWhen Stream.FirstStops)
>>> parListEagerMin = Stream.parList (Stream.eager True . Stream.stopWhen Stream.AnyStops)
>>> parListInterleaved = Stream.parList (Stream.interleaved True)
>>> parListLazy = Stream.parList id