export interface ExpirationOptions {
    EX?: number;
    PX?: number;
    NX?: boolean;
    XX?: boolean;
    KEEPTTL?: boolean;
    GET?: boolean;
}
export interface DataClient {
    get<T = string | Blob | null>(key: string): Promise<T | null>;
    set(key: string, value: string | Buffer | null, options?: ExpirationOptions): Promise<string | Buffer | null>;
    del(key: string): Promise<number>;
    quit(callback?: (err: Error | null, res: string) => void): Promise<string>;
}