module foo {
  namespace "urn:foo";
  prefix "foo";

  feature bar-feature;

  grouping baz-group {
    container baz;
  }

  grouping bar-group {
    container bar {
      if-feature bar-feature;
      uses baz-group;
    }
  }

  container foo {
    uses bar-group;
  }

  augment "/foo/bar/baz" {
    if-feature bar-feature;
    leaf baz-leaf {
      type string;
    }
  }
}