protected function extractAutoIDs()
{
$arr_ids = [];
foreach ($this->obj_last_response->getDeprecatedMutationResult()->getInsertAutoIdKeyList() as $obj_key) {
$arr_key_path = $obj_key->getPathElementList();
$obj_path_end = end($arr_key_path);
$arr_ids[] = $obj_path_end->getId();
}
return $arr_ids;
}