import type { Plugin } from 'unified';
import type { Node } from 'myst-spec';
import type { GenericParent } from 'myst-common';
/**
 * Ensure all HTML ids in the document are unique
 *
 * @param mdast
 * @returns
 */
export declare function htmlIdsTransform<T extends Node | GenericParent>(mdast: T): void;
export declare const htmlIdsPlugin: Plugin<[], GenericParent, GenericParent>;
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