import { OBJECT_IDENTIFIER, ASN1Element as _Element } from '@wildboar/asn1';
import * as $ from '@wildboar/asn1/functional';
import { TimePeriod } from '../MetricModule/TimePeriod.ta.mjs';
import { Induced } from '../UsageMeteringFunction/Induced.ta.mjs';
import { ReportingEvent } from '../UsageMeteringFunction/ReportingEvent.ta.mjs';
/**
 * @summary NotificationCause
 * @description
 *
 * ### ASN.1 Definition:
 *
 * ```asn1
 * NotificationCause  ::=  CHOICE {
 *   periodic  [1]  TimePeriod,
 *   induced   [2]  Induced,
 *   event     [3]  ReportingEvent,
 *   stimulus  [4]  OBJECT IDENTIFIER
 * }
 * ```
 */
export type NotificationCause = {
    periodic: TimePeriod;
} | {
    induced: Induced;
} | {
    event: ReportingEvent;
} | {
    stimulus: OBJECT_IDENTIFIER;
};
/**
 * @summary Decodes an ASN.1 element into a(n) NotificationCause
 * @function
 * @param {_Element} el The element being decoded.
 * @returns {NotificationCause} The decoded data structure.
 */
export declare function _decode_NotificationCause(el: _Element): NotificationCause;
/**
 * @summary Encodes a(n) NotificationCause 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 NotificationCause, encoded as an ASN.1 Element.
 */
export declare function _encode_NotificationCause(value: NotificationCause, elGetter: $.ASN1Encoder<NotificationCause>): _Element;
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