/**
 * File operation utilities
 */
/**
 * Check if a file exists
 * @param filePath - Path to file
 * @returns True if file exists
 */
export declare function fileExists(filePath: string): boolean;
/**
 * Check if a directory exists
 * @param dirPath - Path to directory
 * @returns True if directory exists
 */
export declare function directoryExists(dirPath: string): boolean;
/**
 * Read file contents as string
 * @param filePath - Path to file
 * @returns File contents or null if error
 */
export declare function readFile(filePath: string): string | null;
/**
 * Write contents to file
 * @param filePath - Path to file
 * @param content - Content to write
 * @returns True if successful
 */
export declare function writeFile(filePath: string, content: string): boolean;
/**
 * Append contents to file
 * @param filePath - Path to file
 * @param content - Content to append
 * @returns True if successful
 */
export declare function appendFile(filePath: string, content: string): boolean;
/**
 * Make file executable (chmod +x)
 * @param filePath - Path to file
 * @returns True if successful
 */
export declare function makeExecutable(filePath: string): boolean;
/**
 * Create directory if it doesn't exist
 * @param dirPath - Path to directory
 * @returns True if successful
 */
export declare function ensureDirectory(dirPath: string): boolean;
/**
 * Resolve path relative to current working directory
 * @param relativePath - Relative path
 * @returns Absolute path
 */
export declare function resolvePath(relativePath: string): string;
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