{
  "type" : "object",
  "required": ["firstName", "lastName"],
  "properties" : {
    "firstName": {
        "type": "string"
    },
    "lastName": {
        "type": "string"
    },
    "age": {
        "description": "Age in years",
        "type": "integer",
        "minimum": 0
    }
  }
}