import { Document } from '../types';
export declare class IndexedDB {
    private static db;
    private static store;
    private static dbVersion;
    private static dbName;
    private static dbStore;
    private static open;
    static load(params: {
        name?: string;
        store?: string;
        version?: number;
    }): Promise<typeof IndexedDB>;
    static get<T = Document>(key: string): Promise<T>;
    static set<T = Document>(key: string, value: T): Promise<void>;
    static unset(key: string): Promise<void>;
    static clear(): Promise<void>;
}