$dataListAttributes An array of HTML attributes applied to the datalist element */ public function __invoke(?string $locale = null, array $dataListAttributes = []): string { $locale = $locale ?? $this->defaultLocale; $list = array_map(function (CountryCode $code) use ($locale): string { $name = Locale::getDisplayRegion('-' . $code->toString(), $locale); return sprintf( '', $code->toString(), $this->escaper->escapeHtmlAttr($name) ); }, iterator_to_array($this->codeList)); $attributes = new HtmlAttributesSet($this->escaper, $dataListAttributes); return sprintf( '', $attributes->__toString(), implode(PHP_EOL, $list) ); } }