{
  "type": "object",
  "required": ["id", "login", "url", "avatar_url"],
  "properties" : {
    "id": { "type": "integer" },
    "login": { "type": "string" },
    "url": { "type": "string" },
    "avatar_url": { "type": "string" },
    "html_url": { "type":  "string" }
  },
  "additionalProperties": false
}