import { type Overwrite, type SetRequired } from '@augment-vir/common';
/**
 * Sub-class of `CustomEvent` with the detail type and event type string both being part of its type
 * signature.
 *
 * @category Internal
 */
export interface TypedCustomEvent<EventDetail, EventType extends string> extends CustomEvent<EventDetail> {
    readonly type: EventType;
}
/**
 * Init input for TypedCustomEvent instances.
 *
 * @category Internal
 */
export type TypedCustomEventInit<EventDetail> = SetRequired<CustomEventInit<EventDetail>, 'detail'>;
/**
 * Define a `CustomEvent` sub-class with a type tied to its detail type and event type string. This
 * is the same as `defineTypedEvent` but with a detail property for storing arbitrary data.
 *
 * This needs to be called twice in order to properly bind both the detail type generic and the
 * event type string. Defined events bubble and cross shadow boundaries by default. Explicit event
 * init values override these defaults.
 *
 * @category Events
 * @example DefineTypedCustomEvent<DetailType>()('event-type-string');
 */
export declare function defineTypedCustomEvent<const EventDetail = undefined>(): <EventType extends string>(type: EventType) => (new (eventInitDict: TypedCustomEventInit<EventDetail>) => TypedCustomEvent<EventDetail, EventType>) & Overwrite<typeof Event, Pick<TypedCustomEvent<EventDetail, EventType>, "type">>;