public function updateDetails($transactionId, $attribs = [])
{
$this->_validateId($transactionId);
Util::verifyKeys(self::updateDetailsSignature(), $attribs);
$path = $this->_config->merchantPath() . '/transactions/' . $transactionId . '/update_details';
$response = $this->_http->put($path, ['transaction' => $attribs]);
return $this->_verifyGatewayResponse($response);
}