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plugins/system/jlsitemap_cron/fields/key.php

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+<?php
+/**
+ * @package    System - JLSitemap Cron Plugin
+ * @version    1.12.0
+ * @author     Joomline - joomline.ru
+ * @copyright  Copyright (c) 2010 - 2022 Joomline. All rights reserved.
+ * @license    GNU/GPL license: http://www.gnu.org/copyleft/gpl.html
+ * @link       https://joomline.ru/
+ */
+
+defined('_JEXEC') or die;
+
+use Joomla\CMS\Form\FormField;
+
+class JFormFieldKey extends FormField
+{
+	/**
+	 * The form field type.
+	 *
+	 * @var  string
+	 *
+	 * @since  0.0.2
+	 */
+	protected $type = 'key';
+
+	/**
+	 * Name of the layout being used to render the field
+	 *
+	 * @var  string
+	 *
+	 * @since  0.0.2
+	 */
+	protected $layout = 'plugins.system.jlsitemap_cron.fields.key';
+
+	/**
+	 * Method to get the field label markup.
+	 *
+	 * @return  string  The field label markup.
+	 *
+	 * @since  0.0.2
+	 */
+	protected function getLabel()
+	{
+		return '';
+	}
+}