export declare type AsyncCustomEventDetail<TEventData, TResolveData, TRejectReason> = {
    readonly eventData: TEventData;
    readonly onResolve: (data: TResolveData) => void;
    readonly onReject: (reason: TRejectReason) => void;
};
export declare type AsyncCustomEvent<TEventData, TResolveData, TRejectReason> = CustomEvent<AsyncCustomEventDetail<TEventData, TResolveData, TRejectReason>>;