Custom conditional placeholder {is_recurrence}

<?php

add_action('em_event_output_condition', 'my_em_custom_event_output_condition', 100, 4);
function my_em_custom_event_output_condition($replacement, $condition, $match, $EM_Event){
	if( is_object($EM_Event) && preg_match('/^is_recurrence$/',$condition, $matches) ){
		if( $EM_Event->is_recurrence( true ) ){
			$replacement = preg_replace("/\{\/?$condition\}/", '', $match);
		}else{
			$replacement = '';
		}
	}
	return $replacement;
}