import { NULL, ASN1Element as _Element } from '@wildboar/asn1';
import * as $ from '@wildboar/asn1/functional';
import { ObjectInstance } from '@wildboar/cmip';
/**
 * @summary OptionalObject
 * @description
 *
 * ### ASN.1 Definition:
 *
 * ```asn1
 * OptionalObject  ::=  CHOICE {noObject  NULL,
 *                            object    ObjectInstance
 * }
 * ```
 */
export type OptionalObject = {
    noObject: NULL;
} | {
    object: ObjectInstance;
};
/**
 * @summary Decodes an ASN.1 element into a(n) OptionalObject
 * @function
 * @param {_Element} el The element being decoded.
 * @returns {OptionalObject} The decoded data structure.
 */
export declare function _decode_OptionalObject(el: _Element): OptionalObject;
/**
 * @summary Encodes a(n) OptionalObject 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 OptionalObject, encoded as an ASN.1 Element.
 */
export declare function _encode_OptionalObject(value: OptionalObject, elGetter: $.ASN1Encoder<OptionalObject>): _Element;
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