/**
* @internal
*/
public function addChildNodes(TravelRequest $travelRequest)
{
$children = new ArrayCollection();
foreach ($travelRequest->getDestinations() as $destination) {
$children->add($destination);
}
foreach ($travelRequest->getAccomodations() as $accomodation) {
$children->add($accomodation);
}
return $children;
}
