module Trie:sig
..end
Tries in this implementation contain data at the leaves only. An inner node contains only the subtries for each key.
This module is inspired by Jean-Christophe Filliatre's
implementation at
https://www.lri.fr/~filliatr/ftp/ocaml/ds/trie.ml.html
Author(s): Christoph Sticksel
module type S =sig
..end
module Make: