import { ASN1Element as _Element, IA5String } from "@wildboar/asn1";
import * as $ from "@wildboar/asn1/functional";
import { DirectoryString } from "@wildboar/x500/SelectedAttributeTypes";
/**
 * @summary PKCS9String
 * @description
 *
 * ### ASN.1 Definition:
 *
 * ```asn1
 * PKCS9String {INTEGER : maxSize}  ::=  CHOICE {
 *         ia5String IA5String (SIZE(1..maxSize)),
 *         directoryString DirectoryString {maxSize}
 * }
 * ```
 */
export type PKCS9String = {
    ia5String: IA5String;
} | {
    directoryString: DirectoryString;
};
/**
 * @summary Decodes an ASN.1 element into a(n) PKCS9String
 * @function
 * @param {_Element} el The element being decoded.
 * @returns {PKCS9String} The decoded data structure.
 */
export declare function _decode_PKCS9String(el: _Element): PKCS9String;
/**
 * @summary Encodes a(n) PKCS9String into an ASN.1 Element.
 * @function
 * @param value The element being encoded.
 * @param elGetter A function that can be used to get new ASN.1 elements.
 * @returns {_Element} The PKCS9String, encoded as an ASN.1 Element.
 */
export declare function _encode_PKCS9String(value: PKCS9String, elGetter: $.ASN1Encoder<PKCS9String>): _Element;
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