Router::getItemDetailUrlCompatibleTemplate

public function getItemDetailUrlCompatibleTemplate(int $entityTypeId): ?string
{
	if ($this->isNewRoutingForDetailEnabled($entityTypeId))
	{
		$uri = $this->getUrlForTemplate(
			'bitrix:crm.item.details',
			[
				'ENTITY_TYPE_ID' => $entityTypeId,
				'ENTITY_ID' => '#' . $this->getCompatiblePlaceholder($entityTypeId) . '#',
			]
		);

		return $uri ? $uri->getUri() : null;
	}

	return $this->getCompatibleItemDetailsTemplate($entityTypeId);
}