/**
 * Download an image from a URL and save it to a local file
 */
export declare function downloadImage(url: string, outputPath: string): Promise<string>;
/**
 * Generate a filename from URL
 */
export declare function getFilenameFromUrl(url: string): string;
/**
 * Convert GitHub raw URL to a local media path
 */
export declare function convertToMediaPath(localPath: string): string;