pull module into Joomla html override or remove div if no module

gistfile1.txt

<?php

// Render modules inside this html override
$doc      = JFactory::getDocument();
$renderer = $doc->loadRenderer('modules');
$raw      = array('style' => 'xhtml');

?>

<!-- remove the whole div if no module assigned in this position-->
<?php if (count(JModuleHelper::getModules('right-article'))): ?>
  <div class="widgets">
	<!-- Render module inside this override -->
	<?= $renderer->render('right-article', $raw, null); ?>
  </div>
<?php endif; ?>