protected static function define_other_properties() { return array('usercompetencysummary' => array('type' => user_competency_summary_exporter::read_properties_definition()), 'course' => array('type' => course_summary_exporter::read_properties_definition()), 'coursemodules' => array('type' => course_module_summary_exporter::read_properties_definition(), 'multiple' => true)); }