public function updateEncodingReservedUnit(EncodingReservedUnit $encodingReservedUnit)
    {
        $accountID = $encodingReservedUnit->getAccountId();
        $encodingReservedUnit->setAccountId(null); // never send account Id
        $this->_updateEntity($encodingReservedUnit, "EncodingReservedUnitTypes(guid'{$accountID}')");
        $encodingReservedUnit->setAccountId($accountID);
    }