import { StorageAdapter } from "./StorageAdapter";
export declare class IndexedDBAdapter implements StorageAdapter {
    private dbName;
    private dbVersion;
    private storeName;
    private db;
    constructor(dbName?: string, dbVersion?: number, storeName?: string);
    private openDB;
    setItem(key: string, value: string): Promise<void>;
    getItem(key: string): Promise<string | null>;
    removeItem(key: string): Promise<void>;
    clear(): Promise<void>;
}
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