> ## Documentation Index
> Fetch the complete documentation index at: https://docs.devin.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# CognitionAcp.RichContentNode

> One element of a user message's list.

One element of a user message's `rich_content` list.

Typed nodes carry a `type` discriminator; plain text has none, so this is
an untagged union with the typed variants tried first.

```typescript
type RichContentNode = RichContentTaggedNode | RichContentTextNode
```


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