import type { TaskOutput } from './types.js';
/**
 * Download a file from a URL to a local path
 */
export declare function downloadFile(url: string, outputPath: string, options?: {
    onProgress?: (percent: number) => void;
}): Promise<void>;
/**
 * Generate a filename from a URL
 */
export declare function getFilenameFromUrl(url: string): string;
/**
 * Generate a filename for a task output
 */
export declare function generateOutputFilename(output: TaskOutput, index: number, taskId: string): string;
/**
 * Download task outputs to a directory
 */
export declare function downloadTaskOutputs(outputs: TaskOutput[], outputDir: string, taskId: string): Promise<string[]>;