import { BaseNotifier } from '../base/base';
import { Unsubscribe } from '../subjects/subject';
export type UseEventHook<EventType> = <Event extends keyof EventType>(event: Event, callback: (data: EventType[Event]) => void) => void;
export declare class EventNotifier<State extends object, EventType extends Record<string, any>> extends BaseNotifier<State> {
    #private;
    constructor(initialState: State);
    on<Event extends keyof EventType>(event: Event, callback: (data: EventType[Event]) => void): Unsubscribe;
    createEventsHook(): UseEventHook<EventType>;
    protected emit<Event extends keyof EventType>(event: Event, data: EventType[Event]): void;
}