{ config, ... }: {
  class = { "just" = "data"; };
  a = "one";
  b = "two";
  meta = "meta";

  _module.args.result =
    let r = builtins.removeAttrs config [ "_module" ];
    in builtins.trace (builtins.deepSeq r r) (r == {
      a = "one";
      b = "two";
      class = { "just" = "data"; };
      meta = "meta";
    });
}