import { type RequestInit, type Response } from 'node-fetch';
import type { ProxyConfig } from '../types.js';
export declare function getProxyAgent(proxy: ProxyConfig): Promise<{
    httpAgent?: unknown;
    httpsAgent?: unknown;
} | undefined>;
export declare function fetchWithTimeout(url: string, options?: RequestInit, timeoutMs?: number): Promise<Response>;
export declare function fetchWithProxy(url: string, options?: RequestInit, proxy?: ProxyConfig, timeoutMs?: number, retries?: number): Promise<Response>;
export declare function getProxyUrl(proxy?: ProxyConfig): string | undefined;