doitinpoland.com/wp-content/plugins/sitepress-multilingual-cms/classes/emails/notification/summary/interface-wpml-tm-jobs-summary-report-model.php

<?php

interface WPML_TM_Jobs_Summary_Report_Model {

	/**
	 * @return string
	 */
	public function get_subject();

	/**
	 * @return string
	 */
	public function get_summary_text();
}