import { type Rule } from '@angular-devkit/schematics';
import type { NgAddPackageOptions } from '../../tasks/index';
/**
 * Install via `ng add` a list of npm packages.
 * @param packages List of packages to be installed via `ng add`
 * @param options install options
 * @param packageJsonPath path of the package json of the project where they will be installed
 */
export declare function ngAddPackages(packages: string[], options?: Omit<NgAddPackageOptions, 'version'> & {
    version?: string | (string | undefined)[];
}, packageJsonPath?: string): Rule;
//# sourceMappingURL=ng-add.helpers.d.ts.map