public function revokeDBSecurityGroupIngress(DBSecurityGroupIngressRequestData $request)
{
$result = null;
$options = $request->getQueryArray();
$response = $this->client->call(ucfirst(__FUNCTION__), $options);
if ($response->getError() === false) {
$sxml = simplexml_load_string($response->getRawContent());
if (!$this->exist($sxml->RevokeDBSecurityGroupIngressResult)) {
throw new RdsException(sprintf(self::UNEXPECTED, 'revoke DBSecurityGroupIngress'));
}
$result = $this->_loadDBSecurityGroupData($sxml->RevokeDBSecurityGroupIngressResult->DBSecurityGroup);
}
return $result;
}