zentao/extension/max/group/ext/model/zflow.php

<?php
/**
 * __construct
 *
 * @access public
 * @return void
 */
public function __construct($appName = '')
{
    parent::__construct($appName);

    // Load custom lang from the flow extension of zdoo.
    $this->loadExtension('flow')->loadCustomLang();
}

/**
 * Update accounts.
 *
 * @param  int    $groupID
 * @access public
 * @return void
 */
public function updateAccounts($groupID)
{
    $this->loadExtension('zflow')->updateAccounts($groupID);
}