interface IInstallOptions {
    /**
     * If true it will add `-E` to the yarn options.
     */
    exact: boolean;
    /**
     * A non empty string will be used create a regular expression to determine if the pacakge
     * name should be installed. Pass in an empty string if all dependencies should be installed.
     */
    regex: string;
    /**
     * If true then all dependencies are installed to the latest version.
     */
    latest: boolean;
}
/**
 * Executes `yarn add` on a set of dependencies specified in the package object provided.
 */
declare function install(pkg: object, depType: 'devDependencies' | 'dependencies', options?: IInstallOptions): Promise<number>;
export { IInstallOptions, install, };