/**
 * Safely read a JSON file
 * @param filePath - Path to JSON file
 * @returns Parsed JSON or null on error
 */
export declare function readJsonFile(filePath: string): unknown | null;
/**
 * Safely read a text file
 * @param filePath - Path to text file
 * @returns File contents or null on error
 */
export declare function readTextFile(filePath: string): string | null;
/**
 * Write content to a file
 * @param filePath - Path to file
 * @param content - Content to write
 */
export declare function writeTextFile(filePath: string, content: string): void;
/**
 * Check if a path exists
 * @param filePath - Path to check
 * @returns True if path exists
 */
export declare function pathExists(filePath: string): boolean;
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