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

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

export interface EventTargetAddListenerOptions {
    once?: boolean;
}

/**
 * @experimental
 */
export const EventTargetListeners = Symbol.for("@opennetwork/environment/events/target/listeners");

/**
 * @experimental
 */
export const EventTargetListenersIgnore = Symbol.for("@opennetwork/environment/events/target/listeners/ignore");

/**
 * @experimental
 */
export const EventTargetListenersMatch = Symbol.for("@opennetwork/environment/events/target/listeners/match");

/**
 * @experimental
 */
export const EventTargetListenersThis = Symbol.for("@opennetwork/environment/events/target/listeners/this");