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

# xmppSignedPreKey

> Function xmppSignedPreKey in the Baileys API.

> **xmppSignedPreKey**(`key`): [`BinaryNode`](/api-reference/type-aliases/BinaryNode)

Defined in: [src/Utils/signal.ts:71](https://github.com/WhiskeySockets/Baileys/blob/master/src/Utils/signal.ts#L71)

## Parameters

### key

[`SignedKeyPair`](/api-reference/type-aliases/SignedKeyPair)

## Returns

[`BinaryNode`](/api-reference/type-aliases/BinaryNode)