@virtualstate/app-history/src/event-target/context.ts

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

import {Event} from "./event"
import {EventDescriptor} from "./descriptor"

export interface DispatchedEvent {
    descriptor?: EventDescriptor
    event: Event
    target: unknown
    timestamp: number
}

export interface EventListener {
    isListening(): boolean
    descriptor: EventDescriptor
    timestamp: number
}