Constructor: documentAttributeAudio

Represents an audio file

Attributes:

Name	Type	Required	Description
voice	Bool	Optional	Whether this is a voice message
duration	int	Optional	Duration in seconds
title	string	Optional	Name of song
performer	string	Optional	Performer
waveform	waveform	Optional

Type: DocumentAttribute

Example:

$documentAttributeAudio = ['_' => 'documentAttributeAudio', 'voice' => Bool, 'duration' => int, 'title' => 'string', 'performer' => 'string', 'waveform' => waveform];