--- title: documentAttributeAudio description: documentAttributeAudio attributes, type and example image: https://docs.madelineproto.xyz/favicons/android-chrome-256x256.png --- # Constructor: documentAttributeAudio\_23 [Back to constructors index](index.md) ### Attributes: | Name | Type | Required | |----------|---------------|----------| |duration|[int](../types/int.md) | Optional| ### Type: [DocumentAttribute](../types/DocumentAttribute.md) ### Example: ``` $documentAttributeAudio_23 = ['_' => 'documentAttributeAudio', 'duration' => int]; ``` [PWRTelegram](https://pwrtelegram.xyz) json-encoded version: ``` {"_": "documentAttributeAudio", "duration": int} ``` Or, if you're into Lua: ``` documentAttributeAudio_23={_='documentAttributeAudio', duration=int} ```