{{#resource "m:core" "base" type="AWS::RDS::DBSubnetGroup"}}
  {{#helper "m:core" "properties"}}
    {{helper "m:core" "property" "DBSubnetGroupDescription" valueVariable="groupDescription"}}
    {{helper "m:core" "property" "SubnetIds"}}
    {{helper "m:core" "property" "Tags" optional=true}}
  {{/helper}}
{{/resource}}