/**
 * Installs the specified npm packages as dependencies in the 'infrastructure' directory.
 *
 * @param packages - An array of package names to install.
 * @returns A promise that resolves with the standard output of the npm install command, or rejects with an error.
 */
export declare function installDependencies(packages: string[]): Promise<unknown>;
export declare const hasDependency: (dependency: string) => Promise<boolean>;
export declare function addNodePackageScript(name: string, cmd: string): Promise<void>;