UrlManager::getItemDetailUrl

public function getItemDetailUrl(int $typeId, int $itemId = null, int $stageId = null): ?Uri
{
	$getParameters = [];
	if($stageId > 0)
	{
		$getParameters['stageId'] = $stageId;
	}

	return $this->getUrlForTemplate('bitrix:rpa.item.detail', [
		'typeId' => $typeId,
		'id' => $itemId,
	], $getParameters);
}