StreamValue example

        $rep->contents = $this->parser->parse($meta, $base_obj);

        if (!\in_array('depth_limit', $rep->contents->hints, true)) {
            $rep->contents = $rep->contents->value->contents;
        }

        $o->addRepresentation($rep, 0);
        $o->value = $rep;

        $stream = new StreamValue($meta);
        $stream->transplant($o);
        $o = $stream;
    }
}