/**
 * Markdown conversion utility for OfficeParserAST.
 *
 * Converts the unified AST content nodes into well-formatted Markdown text.
 * Handles all node types: headings, paragraphs, text (with formatting),
 * lists, tables, images, charts, notes, slides, sheets, and pages.
 *
 * @module markdownUtils
 */
import { OfficeContentNode } from '../types';
/**
 * Converts an array of OfficeContentNode into Markdown text.
 *
 * @param content - The content nodes from the AST
 * @param config - Configuration options
 * @param config.newlineDelimiter - Delimiter for newlines (default: '\n')
 * @returns Formatted Markdown string
 */
export declare function astToMarkdown(content: OfficeContentNode[], config: {
    newlineDelimiter?: string;
}): string;