/**
 * Store a javascript object at the specified key.
 */
export declare function storeItem(key: string, object: unknown): void;
/**
 * Retrieve a javascript object at the specified key. If not found, defaults to
 * null or, the optionally provided notFoundValue.
 */
export declare function getItem<T>(key: string, notFoundValue?: T | null): T | null;
/**
 * Remove item at specified key.
 */
export declare function removeItem(key: string): void;
/**
 * Generate a random ID. This might not quite be a UUID, but it serves our
 * purposes for now.
 */
export declare function randId(): string;
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