export declare class Hooks<Events extends Record<string, unknown[]>> {
    #private;
    /** Subscribe. Returns an unsubscribe function. */
    on<K extends keyof Events>(event: K, fn: (...args: Events[K]) => void): () => void;
    off<K extends keyof Events>(event: K, fn: (...args: Events[K]) => void): void;
    emit<K extends keyof Events>(event: K, ...args: Events[K]): void;
}