export interface IStorage {
    getItem(key: string): Promise<string | null>;
    setItem(key: string, value: string): Promise<void>;
    removeItem(key: string): Promise<void>;
}
/**
 * `localStorage` adapter for `IStorage`. Failures propagate as rejections
 * so consumers can surface them (see `onPersistError`).
 */
export declare function createLocalStorage(): IStorage;
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