# Module Stable_containers

    module Stable_containers: sig .. end

The Stable versions of Hashtbl, Hash_set, Map, and Set are defined here rather than in their respective modules because:

1. We guarantee their serializations independent of the implementation of those modules 2. Given 1. it is cleaner (and still okay) to separate the code into a separate file

    module Comparable: sig .. end

    module Hashable: sig .. end