{
  "description": "description array item object, use by double array",
  "$schema": "http://json-schema.org/draft-04/schema#",
  "type": "object",
  "properties": {
    "item1": {
      "type": "string"
    },
    "item2": {
      "type": "int32"
    },
    "item3": {
      "type": "boolean"
    }
  }
}
