Via_map_and_join.Req
type 'a t
The type held by the Bind.
Bind
val map : ('a -> 'b) -> 'a t -> 'b t
Mapping over from 'a to 'b.
'a
'b
val join : 'a t t -> 'a t
join remove one level of monadic structure, projecting its bound argument into the outer level.
join