let
  rev = "ea24474a425f8b188a2a768df9f72f429c78cc6e";
  sha256 = "1bvqyh2390p7syvklh5khg2ndxf58izqas57nw7jq7qjxa2mk6rc";
in
  import (fetchTarball {
    url = "https://github.com/bartavelle/language-puppet/archive/${rev}.tar.gz";
    inherit sha256;
  })