Function on

core/utils/eventManager.ts:47–58

(
    name: N,
    handler: EventHandler<EventsMap[N]>
  )

  }

  function on<N extends keyof EventsMap>(
    name: N,
    handler: EventHandler<EventsMap[N]>
  ) {
    const listeners = getHandlersForEvent(name);

    listeners.add(handler);

    return () => {
      listeners.delete(handler);
    };
  }

  function onOneOf<N extends keyof EventsMap>(
    names: N[],