mtv\wp\models\User::fetch PHP Method

    public function fetch()
    {
        // Get userdata (this is a WP_User object in WP 3.3+)
        $user = get_userdata($this->id);
        if ($user->data) {
            $userdata = (array) $user->data;
        } else {
            $userdata = (array) $user;
        }
        // Fetch all user meta, flatten the returned array
        $usermeta = array_map(function ($x) {
            return $x[0];
        }, get_user_meta($this->id));
        // Set value for each user meta key not in userdata
        foreach ($usermeta as $k => $v) {
            if (!in_array($k, array_keys($userdata))) {
                $userdata[$k] = maybe_unserialize($v);
            }
        }
        $this->reload($userdata);
    }