I want to create a nested JSON format which looks something like this for my `Event` model.

```
"event"   {
  "quiz": {
    "name": "",
    "desc": "",
    "events"[
   {
    "name": "general quiz",
    "desc": ""
    }]

  "dance":{
    "name":"",
    "desc":"",
    "events"[{
    "name":"solo dance",
    "desc":""
    }]
   }

```

essentially, i want my `events` to be categorized into actual events under the name `quiz`, `dance`, etc, and each of them will have separate events like solo,group dance etc. Any tips on how I can do this (with or without jbuilder)