Functor Deriving_Functor.Functor_map

module Functor_map: 
functor (O : Stdlib.Map.OrderedType-> Functor !aIDgAJDgC@@@@LDgA
Parameters:
O : Stdlib.Map.OrderedType

type 'a f 
val map : ('a -> 'b) -> 'a f -> 'b f