<?php declare(strict_types=1); namespace Xentral\Modules\PaymentTransaction\Service; interface PaymentDocumentServiceInterface { public function getOrderIdFromCreditNoteId(int $creditNoteId): ?array; public function getOrderByOrderId(string $externalOrderId): ?array; public function getCreditNoteFromInvoiceId(int $invoiceId): ?array; public function getInvoiceByIntOrderId(int $intOrderId): ?array; }