import type { Client } from '../driver';
import type { JSONAdapterSetOptions } from './types';
export declare class JsonAdapter {
    protected client: Client;
    constructor(client: Client);
    set(key: string, value: any, options?: JSONAdapterSetOptions): Promise<void>;
    get<T = any>(key: string): Promise<undefined | T>;
    drop(key: string): Promise<boolean>;
}