Recursive tool support?

I've been struggling to write a configuration for the nestedList tool plugin.

At first I thought the documentation said this was possible with "data" and "-".

But after looking at the example and struggling, I'm wondering if I misinterpreted the docs.

Has anybody successfully written a configuration for something like this

- content1
- content1.1
- content2

```
"type": "nestedList",
"data": {
"style": "unordered",
"items": [
{
"content": "content1",
"items": []
},
{
"content": "content1.1",
"items": [
{
"content": "content2",
"items": []
}
]
}
]
}
```