<?php

namespace Telegram\Bot\Objects;

/**
 * Class Voice.
 *
 * @link https://core.telegram.org/bots/api#voice
 *
 * @property string      $fileId         Unique identifier for this file.
 * @property string      $fileUniqueId   Unique identifier for this file, which is supposed to be the same over time and for different bots. Can't be used to download or reuse the file.
 * @property int         $duration       Duration of the audio in seconds as defined by sender.
 * @property string|null $mimeType       (Optional). MIME type of the file as defined by sender.
 * @property int|null    $fileSize       (Optional). File size.
 */
class Voice extends BaseObject
{
    /**
     * {@inheritdoc}
     */
    public function relations()
    {
        return [];
    }
}