public static function getInbox(PDFfiller $provider, $parameters = [])
    {
        $paramsArray =  self::query($provider, [self::INBOX], $parameters);
        $paramsArray['items'] = array_map(function ($entry) {
            $entry['recipients'] = [$entry['recipients']];
            $entry['except'] = ['callbacks'];

            return $entry;
        }, $paramsArray['items']);
        $paramsArray['items'] = static::formItems($provider, $paramsArray);

        return new ModelsList($paramsArray);
    }