/**
 * Abstraction on npm install command
 * @param packages The package we want to install
 * @returns The output of the npm install
 */
export declare function install(packages: string): Promise<string>;
/**
 * Abstraction on npm uninstall command
 * @param packages The package we want to uninstall
 * @returns The output of the npm uninstall
 */
export declare function uninstall(packages: string): Promise<string>;
/**
 * Abstraction on npm remove command
 * @param packages The package we want to remove
 * @returns The output of the npm uninstall
 */
export declare function remove(packages: string): Promise<string>;
/**
 * Abstraction on npm update command
 * @param packages The package we want to update
 * @returns The output of the npm update
 */
export declare function update(packages: string): Promise<string>;