@virtualstate/app-history/esnext/event-target/descriptor.d.ts

Native JavaScript [app-history](https://github.com/WICG/app-history) implementation

import { EventCallback } from "./callback";
export declare const EventDescriptorSymbol: unique symbol;
export interface EventDescriptor {
    [EventDescriptorSymbol]: true;
    type: string | symbol;
    callback: EventCallback;
    once?: boolean;
}