{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "User",
  "type": "object",
  "required": [
    "id",
    "email"
  ],
  "properties": {
    "id": {
      "type": "string",
      "example": "fd8e24a5-1f16-4b80-af5f-d748bcc9e64d"
    },
    "first_name": {
      "type": "string",
      "example": "Joe"
    },
    "last_name": {
      "type": "string",
      "example": "Smith"
    },
    "email": {
      "type": "string",
      "example": "joe@gmail.com"
    },
    "phone_number": {
      "type": "string",
      "x-nullable": true,
      "example": "123456789"
    }
  }
}