import { Rule, Tree } from '@angular-devkit/schematics'; export declare function addPackageJsonDependencies(): Rule; export declare function installPackageJsonDependencies(): Rule; export declare function addModuleToImports(options: any, project: any): Rule; /** Gets the version of the specified package by looking at the package.json in the given tree. */ export declare function getPackageVersionFromPackageJson(tree: Tree, name: string): string | null; export default function (options: any): Rule;