import { Footnote, PhrasingContent } from 'mdast';
import { Node } from 'unist';
export declare function createFootnote(children?: PhrasingContent[]): Footnote;
/**
 * Type guard for Footnote.
 *
 * @param node - The node to test.
 * @returns True if node is Footnote.
 */
export declare function isFootnote(node: Node): node is Footnote;
/**
 * Type assertion for Footnote.
 *
 * @param node - The node to test.
 */
export declare function assertFootnote(node: Node): asserts node is Footnote;