import { Readable } from 'stream';
import { RegistryClient, RegistryClientOptions } from './RegistryClient';
export declare class NPMRegistryClient implements RegistryClient {
    endpoint: string;
    private log;
    constructor(endpoint: string, options?: RegistryClientOptions);
    resolveVersion(name: string, version: string): Promise<string>;
    download(name: string, version: string): Promise<Readable>;
}