import type { JsonObject, ParsedMarkdown } from './types';
/**
 * Parse markdown with frontmatter
 */
export declare function parse<T = JsonObject>(content: string): ParsedMarkdown<T>;
/**
 * Stringify data to frontmatter markdown
 */
export declare function stringify<T extends JsonObject = JsonObject>(data: T, content: string, format?: 'yaml' | 'toml'): string;
/**
 * Check if content has frontmatter
 */
export declare function hasFrontmatter(content: string): boolean;
/**
 * Extract only the frontmatter (without parsing)
 */
export declare function extractFrontmatter(content: string): string | null;