/**
 * @internal
 */
declare const isPowerOfTwo: (num: number) => boolean;
/**
 * @internal
 */
declare const isEmpty: (obj: any) => boolean;
/**
 * @internal
 */
declare const getIPv4Address: (callback: (err: Error | null, ip: string) => string) => string | null;
/**
 * @internal
 */
declare const getMacAddress: (callback: (err: Error | null, mac: string) => string) => string | null;
export { isPowerOfTwo, isEmpty, getIPv4Address, getMacAddress };