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

# IChainKey

> Protobuf interface IChainKey generated from WAProto.

Defined in: [WAProto/index.d.ts:10940](https://github.com/WhiskeySockets/Baileys/blob/master/WAProto/index.d.ts#L10940)

## Properties

### index?

> `optional` **index**: `null` | `number`

Defined in: [WAProto/index.d.ts:10941](https://github.com/WhiskeySockets/Baileys/blob/master/WAProto/index.d.ts#L10941)

***

### key?

> `optional` **key**: `null` | `Uint8Array`\<`ArrayBufferLike`>

Defined in: [WAProto/index.d.ts:10942](https://github.com/WhiskeySockets/Baileys/blob/master/WAProto/index.d.ts#L10942)