import { BaseStore } from './base-store.js';
import { StoreInMemory } from './store-inmemory.js';
/**
 * Storage Adapter that takes another Storage Adapter (e.g. IndexedDB) and "syncs" its contents to system memory for faster read access.
 *
 * All read operations will use system memory - all write operations will use the provided adapter.
 */
export declare class StoreInMemorySynced extends BaseStore {
    private inMemoryCache;
    private store;
    constructor(inMemoryCache: StoreInMemory, store: BaseStore);
    static create(store: BaseStore): Promise<StoreInMemorySynced>;
    all<T>(): Promise<{
        [key: string]: T;
    }>;
    keys(): Promise<string[]>;
    get<T>(key: string): Promise<T>;
    set<T>(key: string, value: T): Promise<void>;
    delete(key: string): Promise<void>;
    clear(): Promise<void>;
    has(key: string): Promise<boolean>;
    close(): Promise<void>;
}