/**
* {@inheritdoc}
*/
public function process($text, $langcode)
{
$callback = '\\Drupal\\filter_test\\Plugin\\Filter\\FilterTestPostRenderCache::renderDynamicThing';
$context = array('thing' => 'llama');
$placeholder = drupal_render_cache_generate_placeholder($callback, $context);
$result = new FilterProcessResult($text . '<p>' . $placeholder . '</p>');
$result->addPostRenderCacheCallback($callback, $context);
return $result;
}
