declare class IndexedDB {
    private static instance;
    private dbPromise;
    constructor();
    static getInstance(): IndexedDB;
    set(key: string, value: string): Promise<boolean>;
    get(key: string): Promise<string | null>;
    clear(key?: string): Promise<boolean>;
}
declare const _default: IndexedDB;
export default _default;
//# sourceMappingURL=indexedDB.d.ts.map