import { ITelegramClient } from '../../client.types.js';
import { InputFileLike, InputPeerLike } from '../../types/index.js';
/**
 * Set a new chat photo or video.
 *
 * You must be an administrator and have the appropriate permissions.
 */
export declare function setChatPhoto(client: ITelegramClient, params: {
    /** Chat ID or username */
    chatId: InputPeerLike;
    /** Media type (photo or video) */
    type: 'photo' | 'video';
    /** Input media file */
    media: InputFileLike;
    /**
     * When `type = video`, timestamp in seconds which will be shown
     * as a static preview.
     */
    previewSec?: number;
}): Promise<void>;