import type { MdFormatSerialize } from '../serialize/types';
import type { Iframe } from '../spec';
import type { MyNodeSpec, AlignOptions } from './types';
export declare type Attrs = {
    src: string;
    align: AlignOptions;
    width: number | null;
};
declare const iframe: MyNodeSpec<Attrs, Iframe>;
export declare const toMarkdown: MdFormatSerialize;
export default iframe;