protected function fireBeforeImportEvent()
    {
        $arEventData = [$this->getModelClass(), $this->arImportData];

        $arEventData = Event::fire(self::EVENT_BEFORE_IMPORT, $arEventData);
        if (empty($arEventData)) {
            return;
        }

        foreach ($arEventData as $arModelData) {
            if (empty($arModelData)) {
                continue;
            }

            foreach ($arModelData as $sKey => $sValue) {
                $this->arImportData[$sKey] = $sValue;
            }
        }
    }