declare class Eventor<T extends Record<string, (...args: any[]) => void>> {
    private events;
    on<K extends keyof T>(eventName: K, callback: T[K]): void;
    off<K extends keyof T>(eventName: K, callback?: T[K]): void;
    emit<K extends keyof T>(eventName: K, ...args: Parameters<T[K]>): void;
}
export default Eventor;