pm-4.1.x-dev/modules/pm_invoice/src/PmInvoiceInterface.php

<?php

namespace Drupal\pm_invoice;

use Drupal\Core\Entity\ContentEntityInterface;
use Drupal\Core\Entity\EntityChangedInterface;
use Drupal\user\EntityOwnerInterface;

/**
 * Provides an interface defining a pm invoice entity type.
 */
interface PmInvoiceInterface extends ContentEntityInterface, EntityOwnerInterface, EntityChangedInterface {

}