/**
 * Browser polyfills for Node.js built-in modules
 */
export declare const fs: {
    readFileSync: (path: string, encoding: string) => string;
    existsSync: (path: string) => boolean;
};
export declare const path: {
    join: (...paths: string[]) => string;
};
export declare const process: {
    cwd: () => string;
    env: {
        NODE_ENV: string;
    };
};