> ## 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.

# prompt.PromptInput

> What and friends accept: plain text or content blocks.

What `AcpSession.send` and friends accept: plain text or content blocks.

```typescript
type PromptInput = string | PromptContentBlock | PromptContentBlock[]
```


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