# Untitled undefined type in MDAST Schema

```txt
https://ns.adobe.com/helix/pipeline/mdast#/properties/checked
```

A checked field can be present. It represents whether the item is done (when true), not done (when false), or indeterminate or not applicable (when null or not present).


| Abstract            | Extensible | Status         | Identifiable            | Custom Properties | Additional Properties | Access Restrictions | Defined In                                                      |
| :------------------ | ---------- | -------------- | ----------------------- | :---------------- | --------------------- | ------------------- | --------------------------------------------------------------- |
| Can be instantiated | No         | Unknown status | Unknown identifiability | Forbidden         | Allowed               | none                | [mdast.schema.json\*](mdast.schema.json "open original schema") |

## checked Type

`boolean`