ApaiIO\Operations\Lookup::getItemId PHP Метод

    public function getItemId()
    {
        return $this->getSingleOperationParameter('ItemId');
    }

 public function testMultiItemSet()
 {
     $lookup = new Lookup();
     $lookup->setItemIds(array(1, 2, 3, 4));
     $itemQuery = $lookup->getItemId();
     $this->assertSame('1,2,3,4', $itemQuery);
 }