/**
 * Thunder download URL definition.
 */
type DownloadUrl = {
    /**
     * Original download URL.
     */
    url: string;
};
/**
 * Generate Thunder download URL.
 *
 * @param payload Download URL definition.
 * @returns Thunder protocol URL.
 * @example
 * downloadUrl({
 *   url: 'https://example.com/file.zip',
 * })
 * // => 'thunder://xxx'
 */
export declare function downloadUrl(payload: DownloadUrl): string;
export {};