This template creates an option group that specifies the Microsoft SQL Server native backup and restore option for the SQL Server DB engine version 12.00. The option group has an option setting `IAM_ROLE_ARN` with a value of `arn:aws:iam::333333333333333:role/service-role/sqlserverrestore`.

CloudFormation Template

AWSTemplateFormatVersion: '2010-09-09'
Description: SQL Server DB Option Group Example
Resources:
  myOptionGroup:
    Type: 'AWS::RDS::OptionGroup'
    Properties:
      EngineName: undefined
      MajorEngineVersion: undefined
      OptionGroupDescription: undefined
      OptionConfigurations:
        - OptionName: undefined
          OptionSettings:
            - Name: undefined
              Value: undefined