export declare const fsUtils: {
    /**
     * Check if file exists (Node.js only)
     */
    existsSync: (filePath: string) => boolean;
    /**
     * Read file content synchronously (Node.js only)
     */
    readFileSync: (filePath: string, encoding?: BufferEncoding) => string;
    /**
     * Get file stats (Node.js only)
     */
    statSync: (filePath: string) => any | null;
    /**
     * Check if path is a directory (Node.js only)
     */
    isDirectory: (filePath: string) => boolean;
    /**
     * Check if path is a file (Node.js only)
     */
    isFile: (filePath: string) => boolean;
    /**
     * Check if running in Node.js environment
     */
    isNodeEnvironment: () => boolean;
    /**
     * Safe file read with fallback
     */
    safeReadFile: (filePath: string, fallback?: string) => string;
    /**
     * List files in directory (Node.js only)
     */
    readdirSync: (dirPath: string) => string[];
};
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