lyblog/wp-content/plugins/wordpress-seo/admin/metabox/interface-metabox-tab.php

<?php
/**
 * WPSEO plugin file.
 *
 * @package WPSEO\Admin
 */

/**
 * Generates the HTML for a metabox tab.
 */
interface WPSEO_Metabox_Tab {

	/**
	 * Returns the html for the tab link.
	 *
	 * @return string
	 */
	public function link();

	/**
	 * Returns the html for the tab content.
	 *
	 * @return string
	 */
	public function content();
}