import { StateCache } from './StateCache';
import type { Types } from './types';
export declare class EventRegister<S extends Types.State> {
    private stateCache;
    private subscribedEvents;
    constructor(stateCache: StateCache<S>);
    add(callback: (current: S, prev: Partial<S>) => void, trigger: Types.UpdateKeys<S> | true): () => boolean;
    triggerUpdated(updatedState?: Partial<S>): void;
    triggerRefresh(refreshKey?: keyof S | (keyof S)[] | true): void;
    removeAll(): void;
}
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