/**
  * Is client account owner has complete signature
  *
  * @param AccountOwnerInterface $accountOwner
  * @param DocumentSignature $signature
  * @return bool
  * @throws \RuntimeException
  */
 public function isOwnerSignatureCompleted(AccountOwnerInterface $accountOwner, DocumentSignature $signature)
 {
     $criteria = array('documentSignature' => $signature);
     $owner = $accountOwner->getObjectToSave();
     if ($accountOwner->getType() === ClientAccountOwner::OWNER_TYPE_SELF) {
         $criteria['clientOwner'] = $owner;
     } else {
         $criteria['contactOwner'] = $owner;
     }
     $ownerSignature = $this->ownerSignatureRepository->findOneBy($criteria);
     if (!$ownerSignature) {
         throw new \RuntimeException('Owner document signature does not exist.');
     }
     return $ownerSignature->isCompleted();
 }