farm-2.x-dev/modules/asset/water/src/Plugin/Asset/AssetType/Water.php

<?php

namespace Drupal\farm_water\Plugin\Asset\AssetType;

use Drupal\farm_entity\Plugin\Asset\AssetType\FarmAssetType;

/**
 * Provides the water asset type.
 *
 * @AssetType(
 *   id = "water",
 *   label = @Translation("Water"),
 * )
 */
class Water extends FarmAssetType {

}