/// <reference types="node" />
import { Bytes } from "./ByteUtils";
interface ImageSize {
    width: number;
    height: number;
}
export declare function getImageSize(data: Bytes): Promise<ImageSize>;
export declare function createImageThumb(data: Bytes, maxWH: number): Promise<Bytes>;
export declare function createVideoThumb(data: Bytes, maxWH: number): Promise<Buffer>;
export declare function getVideoDurationSeconds(data: Bytes): number;
export {};