search_api-8.x-1.15/tests/search_api_test/src/Plugin/search_api/display/TestDisplay.php

<?php

namespace Drupal\search_api_test\Plugin\search_api\display;

use Drupal\search_api\Display\DisplayPluginBase;

/**
 * Provides a test display.
 *
 * @SearchApiDisplay(
 *   id = "search_api_test",
 *   label = @Translation("Test processor"),
 *   index = "search_api_test"
 * )
 */
class TestDisplay extends DisplayPluginBase {

}