---
url: >-
  https://adk.nht.io/api/@nhtio/adk/batteries/media/type-aliases/MediaChainRef.md
description: >-
  How other media are referenced from builder verbs: an id string or `{ mediaId
  }`.
---

# Type Alias: MediaChainRef

```ts
type MediaChainRef =
  | string
  | {
      mediaId: string;
    };
```

Defined in: [src/batteries/media/builder.ts:49](https://github.com/NHTIO/ADK/blob/v1.20260713.1/src/src/batteries/media/builder.ts#L49)

How other media are referenced from builder verbs: an id string or `{ mediaId }`.