{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "Values",
  "type": "object",
  "properties": {
    "firstname": {
      "description": "First name",
      "type": "string"
    },
    "lastname": {
      "type": "string"
    }
  },
  "required": [
    "firstname",
    "lastname"
  ]
}