inc/class-Iac_Threaded_Mails.php
public static function get_instance() {

		if ( ! self::$instance instanceof self ) {
			$new = new self;
			$new->init();
			self::$instance = $new;
		}

		return self::$instance;
	}
public static function get_instance() {

		if ( ! self::$instance instanceof self ) {
			$new = new self;
			$new->init();
			self::$instance = $new;
		}

		return self::$instance;
	}
public static function get_instance ( ) { if ( ! self :: $ instance instanceof self ) { $ new = new self ; $ new -> init ( ) ; self :: $ instance = $ new ; } return self :: $ instance ; }
get the instance

@return Iac_Threaded_Mails
get the instance