package visitors
Class VisitorsRuntime.reduce2
constraint < .. > = < .. >inherit monoidmethod private visit_result : 'env 'a 'b 'e 'f. ('env -> 'a -> 'b -> 's) ->
('env -> 'e -> 'f -> 's) ->
'env ->
('a, 'e) Result.result ->
('b, 'f) Result.result ->
's