<?php

namespace Telegram\Bot\Objects;

/**
 * Class ChatPhoto.
 *
 * @link https://core.telegram.org/bots/api#chatphoto
 *
 * @property string $smallFileId         Unique file identifier of small (160x160) chat photo. This file_id can be used only for photo download. This file_id can be used only for photo download and only for as long as the photo is not changed.
 * @property string $smallFileUniqueId   Unique file identifier of small (160x160) chat photo, which is supposed to be the same over time and for different bots. Can't be used to download or reuse the file.
 * @property string $bigFileId           Unique file identifier of big (640x640) chat photo. This file_id can be used only for photo download. This file_id can be used only for photo download and only for as long as the photo is not changed.
 * @property string $bigFileUniqueId     Unique file identifier of big (640x640) chat photo, which is supposed to be the same over time and for different bots. Can't be used to download or reuse the file.
 */
class ChatPhoto extends BaseObject
{
    /**
     * {@inheritdoc}
     */
    public function relations()
    {
        return [];
    }
}