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

# MEDIA_HKDF_KEY_MAPPING

> Variable MEDIA_HKDF_KEY_MAPPING in the Baileys API.

> `const` **MEDIA\_HKDF\_KEY\_MAPPING**: `object`

Defined in: [src/Defaults/index.ts:111](https://github.com/WhiskeySockets/Baileys/blob/master/src/Defaults/index.ts#L111)

## Type declaration

### audio

> **audio**: `string` = `'Audio'`

### biz-cover-photo

> **biz-cover-photo**: `string` = `'Image'`

### document

> **document**: `string` = `'Document'`

### gif

> **gif**: `string` = `'Video'`

### image

> **image**: `string` = `'Image'`

### md-app-state

> **md-app-state**: `string` = `'App State'`

### md-msg-hist

> **md-msg-hist**: `string` = `'History'`

### payment-bg-image

> **payment-bg-image**: `string` = `'Payment Background'`

### ppic

> **ppic**: `string` = `''`

### product

> **product**: `string` = `'Image'`

### product-catalog-image

> **product-catalog-image**: `string` = `''`

### ptt

> **ptt**: `string` = `'Audio'`

### ptv

> **ptv**: `string` = `'Video'`

### sticker

> **sticker**: `string` = `'Image'`

### thumbnail-document

> **thumbnail-document**: `string` = `'Document Thumbnail'`

### thumbnail-image

> **thumbnail-image**: `string` = `'Image Thumbnail'`

### thumbnail-link

> **thumbnail-link**: `string` = `'Link Thumbnail'`

### thumbnail-video

> **thumbnail-video**: `string` = `'Video Thumbnail'`

### video

> **video**: `string` = `'Video'`