import { Application } from 'phosphide/lib/core/application';
import { DocumentRegistry } from '../docregistry';
import { RenderMime } from '../rendermime';
/**
 * The editor handler extension.
 */
export declare const markdownHandlerExtension: {
    id: string;
    requires: (typeof DocumentRegistry | typeof RenderMime)[];
    activate: (app: Application, registry: DocumentRegistry, rendermime: RenderMime) => void;
};