/** * {@inheritdoc} */ public function checkIdentifier($identifier, $storeId) { $pluginInfo = $this->pluginList->getNext($this->subjectType, 'checkIdentifier'); if (!$pluginInfo) { return parent::checkIdentifier($identifier, $storeId); } else { return $this->___callPlugins('checkIdentifier', func_get_args(), $pluginInfo); } }