/**
 * Reads and parses a JSON configuration file synchronously.
 *
 * The parsed content is sanitized to prevent prototype pollution attacks
 * by removing dangerous keys like `__proto__`, `constructor`, and `prototype`.
 *
 * @param path - Path to the JSON file
 * @returns Parsed and sanitized JSON content as an object, or empty object if file doesn't exist
 * @throws Error if file exists but contains invalid JSON
 * @throws Error if file exists but cannot be read (permission issues, etc.)
 *
 * @example
 * const config = getFileContent('./config/config.json');
 */
export declare const getFileContent: (path: string) => Record<string, unknown>;
/**
 * Reads and parses a JSON configuration file asynchronously.
 *
 * The parsed content is sanitized to prevent prototype pollution attacks
 * by removing dangerous keys like `__proto__`, `constructor`, and `prototype`.
 *
 * @param path - Path to the JSON file
 * @returns Promise resolving to parsed and sanitized JSON content as an object, or empty object if file doesn't exist
 * @throws Error if file exists but contains invalid JSON
 * @throws Error if file exists but cannot be read (permission issues, etc.)
 *
 * @example
 * const config = await getFileContentAsync('./config/config.json');
 */
export declare const getFileContentAsync: (path: string) => Promise<Record<string, unknown>>;