/**
 * 图片处理
 */
/**
 * 图片缩略图
 * @see https://developer.qiniu.com/dora/manual/1270/the-advanced-treatment-of-images-imagemogr2
 */
declare function thumbnail(src: string, width: number, height?: number): string;
declare function thumbnail(src: string, size: string): string;
export { thumbnail };