def attach_policy(options = {})
      options = options.merge(group_name: @name)
      resp = @client.attach_group_policy(options)
      resp.data
    end
def attach_policy(options = {})
      options = options.merge(group_name: @name)
      resp = @client.attach_group_policy(options)
      resp.data
    end
@example Request syntax with placeholder values

   group.attach_policy({
     policy_arn: "arnType", # required
   })
 @param [Hash] options ({})
 @option options [required, String] :policy_arn
   The Amazon Resource Name (ARN) of the IAM policy you want to attach.

   For more information about ARNs, see [Amazon Resource Names (ARNs) and
   AWS Service Namespaces][1] in the *AWS General Reference*.



   [1]: https://docs.aws.amazon.com/general/latest/gr/aws-arns-and-namespaces.html
 @return [EmptyStructure]