import { PackageFiles } from '../types';
/**
 * Creates an npm-style tgz.
 */
export declare function createTgz(file: string, cwd: string, files: Array<string>): Promise<unknown>;
export declare function createTarball(sourceDir: string, targetDir: string, targetFile: string): Promise<void>;
export declare function unpackTarball(sourceDir: string, sourceFile: string): Promise<void>;
export declare function unpackGzTar(stream: NodeJS.ReadableStream): Promise<PackageFiles>;