Intentando describir la solicitud y la respuesta utilizando estructuras de datos en API Blueprint

Estoy tratando de documentar un punto final con API Blueprint, usando las nuevas secciones de Atributos y Estructuras de datos de la especificación.

Mi carga útil de solicitud se ve así:

{
    "url": "http://requestb.in/11v7i7e1",
    "active": true,
    "types": [
        {
            "name": "sales",
            "version": "2.0"
        },
        {
            "name": "products",
            "version": "2.0"
        }
    ]
}

Mi carga útil de respuesta se ve así:

{
  "data": {
    "id": "dc85058a-a683-11e4-ef46-e9431a15be8c",
    "url": "http://requestb.in/11v7i7e1",
    "active": true,
    "types": [
      {
        "name": "products",
        "version": "2.0"
      },
      {
        "name": "sales",
        "version": "2.0"
      }
    ]
  }
}

Intenté la siguiente reducción de API Blueprint:

FORMAT: 1A

# Vend REST API 2.0

# Group Webhooks

## api/2.0/webhooks [/webhooks]

### List all Webhooks [GET]
Returns a list of Webhooks created by the authorised application.

+ Response 200 (application/json)
    + Attributes (Webhook Collection)

### Add a new Webhook [POST]
Creates a new Webhook.

+ Attributes (Webhook Base)

+ Request (application/json)
    + Attributes (Webhook Base)

+ Response 200 (application/json)
    + Attributes (Webhook Response)

# Data Structures

## Webhook Base (object)
+ url: https://example.com/webhook (string, required) - The address where webhooks requests should be submitted.
+ active: true (boolean, required) - This field can be used to inspect or edit state of the webhook.
+ types: array[Webhook Type] (array[Webhook Type], required) - Collection of Webhook types which should trigger Webhook event.

## Webhook Response Base (Webhook Base)
+ id: dc85058a-a683-11e4-ef46-e8b98f1a7ae4 (string, required) - Webhook `id`.

## Webhook Response (object)
+ data: webhook (Webhook Response Base, required)

## Webhook Type (object)
+ name: sales (string, required) - One of: products, sales, customers, taxes
+ version: 2.0 (string, required) - Version of the payload to be delivered. Currently the only supported value is "2.0".

## Webhook Collection (object)
+ data: array[Webhook Response Base] (array[Webhook Response Base], required) - An array of Webhook objects.

Ahora, al mirarlo en Apiary, me dice que este es un documento de API Blueprint válido, pero no me parece cómo JSON realiza una vista previa de la solicitud y la respuesta. ¿Es posible que estructuras como esta se representen en API Blueprint y sean capaces de representarse bien en Apiary?