```ts
type DocumentContentBlockData = TextBlockData;
```

Defined in: [src/types/media.ts:372](https://github.com/strands-agents/harness-sdk/blob/576da59fdc411b55036a7cf66d4e1659a67d4d0d/strands-ts/src/types/media.ts#L372)

Content blocks that can be nested inside a document. Documents can contain text blocks for structured content.