export declare class Context<TData> {
    private _data;
    private initialState;
    private readonly clientStorage;
    constructor(initialState: TData, storageKey: string);
    protected get data(): TData;
    protected set(data: TData): void;
    protected reset(): void;
    protected update<TKey extends keyof TData>(key: TKey, value: TData[TKey]): void;
    private load;
    private persist;
}