/**
 * A key-value store that persists data using local storage.
 */
export default class LocalStoreContext {
    private context;
    private contextNamespace;
    constructor(contextName: string);
    /**
     * Set a value in local storage.
     * @param key The key to store the value under.
     * @param value The value to store.
     */
    set(key: string, value: string | number | boolean, valueType: 'string' | 'number' | 'boolean'): void;
    get(key: string): string | number | boolean;
    remove(key: string): void;
    length(): number;
    clear(): void;
    private rehydrateContext;
    private persistContext;
}