code: protected function populateConfig(ArrayObject $config)
      {
          $config->defaults([
              'payum.factory_name'           => Constants::FACTORY_NAME,
              'payum.factory_title'          => 'Offline',
              'payum.action.accept'          => new Action\AcceptAction(),
              'payum.action.authorize'       => new Action\AuthorizeAction(),
              'payum.action.cancel'          => new Action\CancelAction(),
              'payum.action.capture'         => new Action\CaptureAction(),
              'payum.action.convert_payment' => new Action\ConvertAction(),
              'payum.action.hang'            => new Action\HangAction(),
              'payum.action.refund'          => new Action\RefundAction(),
              'payum.action.status'          => new Action\StatusAction(),
              'payum.action.sync'            => new Action\SyncAction(),
          ]);
      }
docs: {@inheritDoc}