import type { FioriOptions } from '../types/index.js';
import type { Editor } from 'mem-fs-editor';
export type configType = object | string | number | undefined;
/**
 * Update existing launch config in launch.json file.
 *
 * @param rootFolder - workspace root folder.
 * @param fioriOptions - options for the new launch config.
 * @param index - index of the launch config to edit.
 * @param fs - optional, the memfs editor instance.
 * @returns memfs editor instance.
 */
export declare function updateLaunchConfig(rootFolder: string, fioriOptions: FioriOptions, index: number, fs?: Editor): Promise<Editor>;
//# sourceMappingURL=update.d.ts.map