protected function getImageUploadDisk()
    {
        // check for disk option
        if ($diskInOption = array_get($this->uploadFieldOptions, 'disk')) {
            return $diskInOption;
        }

        return property_exists($this, 'imagesUploadDisk')
            ? $this->imagesUploadDisk
            : config('imageup.upload_disk', 'public');
    }