/**
 * Download and unzip a copy of VS Code in `.vscode-test`. The paths are:
 * - `.vscode-test/vscode-<VERSION>`. For example, `./vscode-test/vscode-1.32.0`
 * - `./vscode-test/vscode-insiders`.
 *
 * @param version The version of VS Code to download such as `1.32.0`. You can also use
 * `"insiders"` for downloading latest VS Code Insiders build.
 * When unspecified, download latest stable version.
 */
export declare function downloadAndUnzipVSCode(version?: string): Promise<string>;