/**
 * Standard duration values for registration. Registration is allowed for full years only. Minimum duration is 1 year.
 * Maximum duration is 5 years.
 * @source Valid durations:
 * ```js
 * const DURATION = {
 *   ONE_YEAR: 31556926,
 *   TWO_YEARS: 63113852,
 *   THREE_YEARS: 94670778,
 *   FOUR_YEARS: 126227704,
 *   FIVE_YEARS: 157784630
 * };
 * ```
 */
export declare const DURATION: {
    ONE_YEAR: number;
    TWO_YEARS: number;
    THREE_YEARS: number;
    FOUR_YEARS: number;
    FIVE_YEARS: number;
};
/**
 * Maximum number of names that can be registered in one transaction.
 */
export declare const MAX_NAMES_PER_TX = 20;
/**
 * Time to live for registration approval.
 */
export declare const APPROVAL_TTL: number;
/**
 * Time to wait before calling `register` after `sendCommitment` call.
 */
export declare const REGISTRATION_WAIT: number;