/**
  * {@inheritdoc}
  */
 public function unsetCallChild($alias, $callback, $result, $params)
 {
     $pluginInfo = $this->pluginList->getNext($this->subjectType, 'unsetCallChild');
     if (!$pluginInfo) {
         return parent::unsetCallChild($alias, $callback, $result, $params);
     } else {
         return $this->___callPlugins('unsetCallChild', func_get_args(), $pluginInfo);
     }
 }