import { Node, Parent } from 'unist';
import { Heading, Link, LinkReference, ListItem, Literal, Paragraph, Table, TableCell, TableRow, YAML } from 'mdast';
import { VFileCompatible } from 'unified';
import { Visitor } from '../../visitor/visitor';
export declare namespace markdown {
    function isLiteral(node: Node): node is Literal;
    function isParent(node: Node): node is Parent;
    function isTranslatableUnit(node: Node): node is Paragraph | Heading;
    function isLinkReference(node: Node): node is LinkReference;
    function isLink(node: Node): node is Link;
    function isTableRow(node: Node): node is TableRow;
    function isTableCell(node: Node): node is TableCell;
    function isTable(node: Node): node is Table;
    function isTableFamily(node: Node): node is Table | TableRow | TableCell;
    function isYaml(node: Node): node is YAML;
    function isListItem(node: Parent): node is ListItem;
    function parse(markdown: VFileCompatible): Parent;
    function stringify(tree: Node): string;
    function toHtml(textOrAst: Node | string): string;
    function fromHtml(html: string): Node;
    function mdToHtml(md: string): string;
    function mdFromHtml(html: string): string;
    function normalize(text: string): string;
    function nodeContainsChinese(node: Node): boolean;
    function visit(node: Node, parent: Parent | undefined, visitor: Visitor<Node>): Promise<Node>;
}