/**
 * Render GFM markdown to sanitized HTML.
 *
 * Returns empty string while WASM is loading, then the rendered HTML.
 * Re-renders automatically when the input changes.
 *
 * @param content - GFM markdown string
 * @returns Sanitized HTML string (or empty string while loading)
 *
 * @example
 * ```tsx
 * import { useMarkdown } from '@colletdev/react';
 *
 * function Message({ markdown }: { markdown: string }) {
 *   const html = useMarkdown(markdown);
 *   return <div dangerouslySetInnerHTML={{ __html: html }} />;
 * }
 * ```
 */
export declare function useMarkdown(content: string): string;