Stock/EventListener/AbstractStockUnitListener.php
protected function scheduleSubjectStockUnitChangeEvent(StockUnitInterface $stockUnit)
    {
        $this->persistenceHelper->scheduleEvent(
            $this->getSubjectStockUnitChangeEventName(),
            new SubjectStockUnitEvent($stockUnit)
        );
    }
protected function scheduleSubjectStockUnitChangeEvent(StockUnitInterface $stockUnit)
    {
        $this->persistenceHelper->scheduleEvent(
            $this->getSubjectStockUnitChangeEventName(),
            new SubjectStockUnitEvent($stockUnit)
        );
    }
Dispatches the subject's "stock unit change" event.

@param StockUnitInterface $stockUnit