{
  "type": "object",
  "properties": {
    "highlight": {
      "type": "object",
      "properties": {
        "contacts": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/contact"
          }
        }
      },
      "required": ["contacts"],
      "additionalProperties": false
    }
  },
  "additionalProperties": false
}