Over_functor_via_apply.Req
type ('a, 'index) t = ('a, 'index) Functor.t
The type held by the Indexed Apply.
Indexed Apply
val apply : ('a -> 'b, 'index) t -> ('a, 'index) t -> ('b, 'index) t
May apply a function wrapped into an t to a value also wrapped into an t.
t