# Untitled undefined type in MDAST Schema

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




| 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") |

## items Type

merged type ([Details](mdast-properties-children-items.md))

one (and only one) of

-   [MDAST](content-properties-mdast.md "check type definition")
-   [Untitled undefined type in MDAST](section-definitions-section.md "check type definition")