{
  "$id": "http://gov.uk/schema/v1.0.0/checkboxes",
  "_name": "checkboxes",
  "title": "Checkboxes",
  "description": "Let users select one or more options from a list",
  "type": "object",
  "properties": {
    "_type": {
      "const": "checkboxes"
    },
    "items": {
      "title": "Options",
      "description": "Items that users can select",
      "type": "array",
      "items": {
        "$ref": "http://gov.uk/schema/v1.0.0/checkbox"
      }
    }
  },
  "allOf": [
    {
      "$ref": "http://gov.uk/schema/v1.0.0/definition/fieldset"
    }
  ],
  "transforms": {
    "namespace": {
      "propagation": "items[?(@._type === 'checkbox')]"
    }
  }
}