val foldr :
?init:'a ->
?finalize:'b ->
?ncores:int ->
?chunksize:int ->
('c -> 'c -> 'c) ->
('d -> 'c -> 'c) ->
'c ->
'd list ->
'cval foldl :
?init:'a ->
?finalize:'b ->
?ncores:int ->
?chunksize:int ->
('c -> 'c -> 'c) ->
('c -> 'd -> 'c) ->
'c ->
'd list ->
'c