DQL does not accept a parameter containing Entities

$userA = new CmsUser;
$userA->name = 'Benjamin';
$userA->username = 'beberlei';
$userA->status = 'developer';
$this->_em->persist($userA);
        
$userB = new CmsUser;
$userB->name = 'Roman';
$userB->username = 'romanb';
$userB->status = 'developer';
$this->_em->persist($userB);

$this->_em->flush();
$this->_em->clear();

$query = $this->_em->createQuery("SELECT u FROM Doctrine\Tests\Models\CMS\CmsUser u WHERE u IN (?0)");
$query->setParameter(0, array($userA, $userB));

Object of class Doctrine\Tests\Models\CMS\CmsUser could not be converted to string