import type { Node } from './types.js';
/**
 * Simple HTML to Node converter
 * Converts basic HTML string to Telegraph Node array
 * Supports: p, b, i, strong, em, a, br, h3, h4, blockquote, code, pre, ul, ol, li, figure, figcaption, img, video, iframe
 *
 * @param html - HTML string to convert
 * @returns Array of Telegraph Node objects
 */
export declare function htmlToNodes(html: string): Node[];
/**
 * Convert Markdown to HTML
 * Supports basic Markdown syntax and converts it to Telegraph-compatible HTML
 *
 * @param markdown - Markdown string to convert
 * @returns HTML string
 */
export declare function markdownToHtml(markdown: string): string;
/**
 * Parse content input - accepts either HTML string, Markdown string, or Node array
 *
 * @param content - Content as HTML string, Markdown string, or Node array
 * @param format - Content format ('html' or 'markdown'), only used if content is a string
 * @returns Array of Telegraph Node objects
 */
export declare function parseContent(content: string | Node[], format?: 'html' | 'markdown'): Node[];
/**
 * Convert Telegraph Node array to JSON-serializable format
 *
 * @param nodes - Array of Telegraph Node objects
 * @returns JSON-serializable array of strings and objects
 */
export declare function nodesToJson(nodes: Node[]): (string | object)[];
/**
 * Convert Telegraph Node array to Markdown format
 *
 * @param nodes - Array of Telegraph Node objects
 * @returns Markdown string
 */
export declare function nodesToMarkdown(nodes: Node[]): string;
/**
 * Convert Telegraph Node array to HTML format
 *
 * @param nodes - Array of Telegraph Node objects
 * @returns HTML string
 */
export declare function nodesToHtml(nodes: Node[]): string;
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