/**
 * Environment detection and cross-platform utilities
 */
/**
 * Check if code is running in a browser environment
 */
export declare const isBrowser: boolean;
/**
 * Check if code is running in a Node.js environment
 */
export declare const isNode: boolean;
/**
 * File system utilities that work in both environments
 */
export declare const fileSystem: {
    /**
     * Read a file asynchronously
     * @param path Path to the file
     * @returns Promise resolving to the file contents as a string
     */
    readFile: (path: string) => Promise<string>;
    /**
     * Read a file synchronously
     * @param path Path to the file
     * @returns File contents as a string
     */
    readFileSync: (path: string) => string;
    /**
     * Write a file asynchronously
     * @param path Path to the file
     * @param data Data to write
     * @returns Promise resolving when the file is written
     */
    writeFile: (path: string, data: string | Uint8Array) => Promise<void>;
    /**
     * Write a file synchronously
     * @param path Path to the file
     * @param data Data to write
     */
    writeFileSync: (path: string, data: string | Uint8Array) => void;
    /**
     * Check if a file exists asynchronously
     * @param path Path to the file
     * @returns Promise resolving to true if the file exists, false otherwise
     */
    exists: (path: string) => Promise<boolean>;
    /**
     * Check if a file exists synchronously
     * @param path Path to the file
     * @returns True if the file exists, false otherwise
     */
    existsSync: (path: string) => boolean;
};
/**
 * Path utilities that work in both environments
 */
export declare const pathUtils: {
    /**
     * Join path segments
     * @param paths Path segments to join
     * @returns Joined path
     */
    join: (...paths: string[]) => string;
    /**
     * Get the directory name of a path
     * @param path Path
     * @returns Directory name
     */
    dirname: (path: string) => string;
    /**
     * Get the base name of a path
     * @param path Path
     * @returns Base name
     */
    basename: (path: string) => string;
    /**
     * Get the extension of a path
     * @param path Path
     * @returns Extension
     */
    extname: (path: string) => string;
};