type Events = Record<string, (...args: any[]) => void>;
type Cleanup = () => void;
export default class EventEmitter<E extends Events, K extends keyof E = keyof E, H extends E[K] = E[K]> {
    private events;
    on(eventName: K, fn: H): Cleanup;
    off(eventName: K, fn: H): void;
    emit(eventName: K, ...args: Parameters<H>): void;
    /**
     * @deprecated. Fallback to the `on` method for backward compatibility.
     */
    subscribe(eventName: K, fn: H): Cleanup;
}
export {};