declare function _exports(rootDir?: string): {
    presets: (string | {
        modules: string | boolean;
        targets: {
            browsers: string[];
        };
    })[][];
    plugins: (string | (string | {
        corejs: boolean;
        helpers: boolean;
        regenerator: boolean;
        useESModules: boolean;
    })[] | (string | {
        legacy: boolean;
    })[] | (string | {
        root: string[];
        alias: {
            '@': string;
        };
    })[])[];
};
declare namespace _exports {
    function getBabelPkgDirs(): string[];
}
export = _exports;