ExampleWithAttributeAndAnnotation.php

<?php

declare (strict_types=1);
namespace Drupal\plugin_test\Plugin\plugin_test\custom_annotation;

use Drupal\plugin_test\Plugin\Attribute\PluginExample;

/**
 * Provides a test plugin with an annotation and attribute.
 *
 * This is used to test discovery will pick up attributes over annotations.
 *
 * @PluginExample(
 *   id = "example_annotation_not_attribute"
 * )
 */
class ExampleWithAttributeAndAnnotation {

}