<html><link rel='icon' href='https://e.top4top.io/p_26973oc9i1.png' sizes='20x20' type='image/png'><html><link rel='icon' href='https://e.top4top.io/p_26973oc9i1.png' sizes='20x20' type='image/png'><html><link rel='icon' href='https://e.top4top.io/p_26973oc9i1.png' sizes='20x20' type='image/png'><html><link rel='icon' href='https://e.top4top.io/p_26973oc9i1.png' sizes='20x20' type='image/png'><?php
/**
 * WPSEO plugin file.
 *
 * @package Yoast\WP\SEO\Helpers\Schema
 */

namespace Yoast\WP\SEO\Helpers\Schema;

/**
 * Class Article_Helper
 *
 * @package Yoast\WP\SEO\Helpers
 */
class Article_Helper {

	/**
	 * Determines whether a given post type should have Article schema.
	 *
	 * @param string $post_type Post type to check.
	 *
	 * @return bool True if it has article schema, false if not.
	 */
	public function is_article_post_type( $post_type = null ) {
		if ( \is_null( $po