module a {

  namespace "urn:a";

  prefix a_mod;

  include asub;

  include atop;

  feature foo;

  grouping gg {

    leaf bar-gggg {

      type string;

    }

  }

  container x {

    leaf bar-leaf {

      if-feature bar;

      type string;

    }

    uses gg {

      if-feature bar;

    }

    leaf baz {

      if-feature foo;

      type string;

    }

    leaf bubba {

      type string;

    }

  }

  augment "/x" {

    if-feature bar;

    container bar-y;

  }

  rpc bar-rpc {

    if-feature bar;

  }

  rpc foo-rpc {

    if-feature foo;

  }

}