import { ASN1Element as _Element, NumericString } from "asn1-ts";
import * as $ from "asn1-ts/dist/node/functional";
/**
 * @summary X121Address
 * @description
 *
 * ### ASN.1 Definition:
 *
 * ```asn1
 * X121Address  ::=  NumericString(SIZE (1..ub-x121-address-length))
 * ```
 */
export declare type X121Address = NumericString;
/**
 * @summary Decodes an ASN.1 element into a(n) X121Address
 * @function
 * @param {_Element} el The element being decoded.
 * @returns {X121Address} The decoded data structure.
 */
export declare function _decode_X121Address(el: _Element): string;
/**
 * @summary Encodes a(n) X121Address into an ASN.1 Element.
 * @function
 * @param {value} el The element being decoded.
 * @param elGetter A function that can be used to get new ASN.1 elements.
 * @returns {_Element} The X121Address, encoded as an ASN.1 Element.
 */
export declare function _encode_X121Address(value: X121Address, elGetter: $.ASN1Encoder<X121Address>): _Element;