Generic EventEmitter Class

type EventEmitterTypes<T> = {
    [K in keyof T]: (payload: any) => void;
};


class TypedEventEmitter<T> extends EventEmitter {
    emit<K extends keyof EventEmitterTypes<T>>(event: K, payload: any): boolean {
        return super.emit(event as string, payload);
    }

    on<K extends keyof EventEmitterTypes<T>>(event: K, listener: EventEmitterTypes<T>[K]): this {
        return super.on(event as string, listener);
    }

    off<K extends keyof EventEmitterTypes<T>>(event: K, listener: EventEmitterTypes<T>[K]): this {
        return super.off(event as string, listener);
    }

    once<K extends keyof EventEmitterTypes<T>>(event: K, listener: EventEmitterTypes<T>[K]): this {
        return super.once(event as string, listener);
    }
}