Over_monad.Req
type 'a t = 'a M.t
The type held by the Traversable.
Traversable
type 'a iter
The iterable type held by the Traversable.
val traverse : ('a -> 'b t) -> 'a iter -> 'b iter t
Map each element of a structure to an action, evaluate these actions from left to right, and collect the results. *