public void setArn(String arn) {
        this.arn = arn;
    }
The Amazon Resource Name (ARN) of the resource that you want to remove tags from. To get the ARN, send a GET
request with the resource name.

@param arn
       The Amazon Resource Name (ARN) of the resource that you want to remove tags from. To get the ARN, send a
       GET request with the resource name.
aws-java-sdk-mediaconvert/src/main/java/com/amazonaws/services/mediaconvert/model/UntagResourceRequest.java