Type Alias ISimpleEventEmitter<Events>

type ISimpleEventEmitter<Events> = {
    addEventListener<K extends string | number | symbol>(
        type: K,
        listener: (event: Events[K], sender: ISimpleEventEmitter<Events>) => void,
    ): void;
    removeEventListener<K extends string | number | symbol>(
        type: K,
        listener: (event: Events[K], sender: ISimpleEventEmitter<Events>) => void,
    ): void;
}