How to use the @aws-cdk/aws-stepfunctions.Fail function in @aws-cdk/aws-stepfunctions

new Choice(this, `${id} done?`)
        .when(
          Condition.stringEquals(
            `$.buildStatus.${id}.buildStatus`,
            'SUCCEEDED'
          ),
          new Succeed(this, `Success ${id}`)
        )
        .when(
          Condition.stringEquals(
            `$.buildStatus.${id}.buildStatus`,
            'IN_PROGRESS'
          ),
          waitForBuild
        )
        .otherwise(new Fail(this, `Failure ${id}`))
    )
  }
}