module type S2 = sig .. end
The same as S except the monad type has two arguments. The second is always just
passed through.
include Monad.Infix2
module Monad_infix: Monad.Infix2 with type ('a, 'd) t := ('a, 'd) t
val bind : ('a, 'd) t -> ('a -> ('b, 'd) t) -> ('b, 'd) t
val return : 'a -> ('a, 'b) t
val map : ('a, 'd) t -> f:('a -> 'b) -> ('b, 'd) t
val join : (('a, 'd) t, 'd) t -> ('a, 'd) t
val ignore : ('a, 'd) t -> (unit, 'd) t
val all : ('a, 'd) t list -> ('a list, 'd) t
val all_ignore : (unit, 'd) t list -> (unit, 'd) t