Traversable.WITH_TRAVERSE
Minimal definition using traverse over a 'a iter.
traverse
'a iter
type 'a 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. *