import { Readable } from 'stream';
import { LogFunction } from '../utils';
import { RegistryClient, RegistryClientOptions } from './RegistryClient';
export declare class RedundantRegistryClient implements RegistryClient {
    clients: RegistryClient[];
    protected log: LogFunction;
    constructor(clients: RegistryClient[], options?: RegistryClientOptions);
    resolveVersion(name: string, version: string): Promise<string>;
    download(name: string, version: string): Promise<Readable>;
}