UserManager.php
public function init()
    {
        $this->_file = \Yii::getAlias($this->path.'/config/'.self::FILENAME);
        $this->loadFromFile();
    }
public function init()
    {
        $this->_file = \Yii::getAlias($this->path.'/config/'.self::FILENAME);
        $this->loadFromFile();
    }
prepare array of users in init