public static function createVirtualColumnsForSlug(string $postTypeSlug, $languageSlugs = [])
    {
        $languageSlugs = ($languageSlugs && !is_array($languageSlugs) ? explode(" ", $languageSlugs): $languageSlugs);
        $languageSlugs = ($languageSlugs ? $languageSlugs : Language::all()->pluck(['slug'])->toArray());

        $virtualColumns = [];
        foreach ($languageSlugs as $languageSlug){
            $virtualColumns[] = [
              "name" => $languageSlug,
              "type" => "string",
              "index" => true,
              "length" => 200,
            ];
        }
        AccioQuery::createVirtualColumns($postTypeSlug, "slug", $virtualColumns);
    }