def METHOD_NAME():
    client = boto3.client("forecast", region_name=region)
    missing_dsg_arn = f"arn:aws:forecast:{region}:{ACCOUNT_ID}:dataset-group/missing"
    with pytest.raises(ClientError) as exc:
        client.delete_dataset_group(DatasetGroupArn=missing_dsg_arn)
    assert exc.value.response["Error"]["Code"] == "ResourceNotFoundException"
    assert (
        exc.value.response["Error"]["Message"] == f"No resource found {missing_dsg_arn}"
    )