#+begin_src cfengine3
bundle agent __main__
{
  classes:
      "role_2";

  vars:
      "original"
        data => '{
            "/tmp/foo": { "if":          "role_1" },
            "/tmp/bar": { "if":          "role_2" },
            "/tmp/baz": { "if": "(role_1|role_2)" }
          }';

      "filtered"
        data => classfilterdata("original", "object_of_objects", "if");

  reports:
      "Filtered data: $(with)"
        with => storejson("filtered");
}
#+end_src

#+begin_src example_output
#@ ```
#@ R: Filtered data: {
#@   "/tmp/bar": {
#@     "if": "role_2"
#@   },
#@   "/tmp/baz": {
#@     "if": "(role_1|role_2)"
#@   }
#@ }
#@ ```
#+end_src
