RapperSourceval load_many :
(('row -> 'parent) * ('parent -> 'key)) ->
(('row -> 'child) * ('parent -> 'child list -> 'parent)) list ->
'row list ->
'parent listmodule Make_helper
(Io : IO) :
RAPPER_HELPER with type 'a future := 'a Io.t and module Stream = Io.Stream