import type { StorageChange, StorageChangeEvent } from '../@types/storage';
export interface ChangeNotifier {
    fire(changes: {
        [key: string]: StorageChange;
    }): void;
    hasListeners(): boolean;
    onChanged: StorageChangeEvent;
}
/** Holds the subscribers of a single change source, so a change never reaches listeners that subscribed elsewhere. */
export declare function createChangeNotifier(): ChangeNotifier;
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