Section::getParentRatioIds

private function getParentRatioIds(array $sections): array
{
	$oldRatioIds = [];
	foreach ($sections as $section)
	{
		if (!empty($section["IBLOCK_SECTION_ID"]))
		{
			$oldRatioIds[$section["ID"]] = $section["IBLOCK_SECTION_ID"];
		}
	}
	return $oldRatioIds;
}