nshop/packages/Longyi/Pay/Klarna/src/Config/payment-methods.php

<?php

return [
    'klarna'  => [
        'code'        => 'klarna',
        'title'       => 'Klarna',
        'description' => 'Klarna',
        'class'       => 'Longyi\Pay\Klarna\Payment\Klarna',
        'active'      => true,
        'sort'        => 1,
    ],
];