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

# IKeyExpiration

> Protobuf interface IKeyExpiration generated from WAProto.

Defined in: [WAProto/index.d.ts:12052](https://github.com/WhiskeySockets/Baileys/blob/master/WAProto/index.d.ts#L12052)

## Properties

### expiredKeyEpoch?

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

Defined in: [WAProto/index.d.ts:12053](https://github.com/WhiskeySockets/Baileys/blob/master/WAProto/index.d.ts#L12053)