public addComment ( string $creditmemoIncrementId, string $comment = null, string $notifyCustomer = null, string $includeComment = null ) : Smalot\Magento\ActionInterface | ||
$creditmemoIncrementId | string | |
$comment | string | |
$notifyCustomer | string | |
$includeComment | string | |
return | Smalot\Magento\ActionInterface |