farm-2.x-dev/modules/asset/group/src/Plugin/views/field/AssetGroup.php

<?php

namespace Drupal\farm_group\Plugin\views\field;

use Drupal\views\Plugin\views\field\EntityField;

/**
 * A field that displays asset group.
 *
 * @ingroup views_field_handlers
 *
 * @ViewsField("asset_group")
 */
class AssetGroup extends EntityField {

}