how i select some value equal array in Doctrine "createQueryBuilder"

Question

can you help me with this code There are several columns in the database, one of which is a role, user role value looks like this: ["ROLE_ADMIN"] how can I get all users who have this role?

public function findUserWithRolle(){
    $qb=$this->createQueryBuilder('R');
    $qb->select('R.username')
    ->where('R.roles=["ROLE_ADMIN"]');
    return $qb->getQuery()->getResult();
}