import type Token from 'markdown-it/lib/token';
import type { MarkdownHeader } from '../../shared';
/**
 * Resolve headers from `markdown-it` tokens.
 */
export declare const resolveHeadersFromTokens: (tokens: Token[], { level, allowHtml, escapeText, slugify, format, }: {
    level: number[];
    allowHtml: boolean;
    escapeText: boolean;
    slugify: (str: string) => string;
    format?: ((str: string) => string) | undefined;
}) => MarkdownHeader[];
/**
 * Resolve header title from `markdown-it` token. Typically using the next token of
 * `heading_open` token.
 */
export declare const resolveTitleFromToken: (token: Token, { allowHtml, escapeText, }: {
    allowHtml: boolean;
    escapeText: boolean;
}) => string;
export declare const slugify: (str: string) => string;
/**
 * Global constants and env variables will be statically replaced by Vite in build mode. This
 * util helps avoid that by inserting escape sequences.
 *
 * @see https://vitejs.dev/guide/env-and-mode.html#production-replacement
 */
export declare function preventViteConstantsReplacement(source: string, define?: Record<string, unknown>): string;
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