/** * Lists all volumes. * * @param ListVolumesData|array $filter List volumes request object * @param PaginationType $pagination Pagination * @return VolumeResponseList|null */ public function describe($filter = null, PaginationType $pagination = null) { if ($filter !== null && !$filter instanceof ListVolumesData) { $filter = ListVolumesData::initArray($filter); } return $this->getApiHandler()->listVolumes($filter, $pagination); }