{
  "layout": [
    { "type": "section", "title": "Name", "required": true,
      "items": [
        "first_name",
        "last_name"
      ]
    },
    { "key": "age", "type": "integer" },
    { "key": "is_company", "title": "Is this a company?", "type": "checkbox" },
    { "key": "address.street_1", "title": "Address" },
    { "key": "address.street_2", "notitle": true },
    "address.city",
    "address.state",
    "address.zip_code",
    { "key": "phone_numbers", "type": "array",
      "items": [
        "phone_numbers[].number",
        "phone_numbers[].type"
      ]
    },
    { "key": "notes", "type": "textarea" },
    { "type": "submit" }
  ]
}