/**
 * Fetcher class - Static methods for HTTP fetching with retry logic
 */
import type { HttpsProxyAgent } from 'https-proxy-agent';
import type { SocksProxyAgent } from 'socks-proxy-agent';
import { ErrorCategory, type RetryConfig, type FetchResult, type RequestMethod } from './types.js';
/**
 * Static class for HTTP fetch operations with retry logic
 */
export declare class Fetcher {
    /**
     * Fetch a URL with retry logic
     */
    static fetch(url: string, options?: {
        method?: RequestMethod;
        headers?: Record<string, string>;
        body?: string | object;
        timeout?: number;
        proxy?: HttpsProxyAgent<string> | SocksProxyAgent;
        retryConfig?: RetryConfig;
        followRedirects?: boolean;
        signal?: AbortSignal;
    }): Promise<FetchResult>;
    /**
     * Single fetch attempt
     */
    private static singleFetch;
    private static classifyResponse;
    private static buildResponseErrorMessage;
    /**
     * Categorize an error for reporting
     */
    static categorizeError(error: Error): ErrorCategory;
    /**
     * Get default headers
     */
    static get defaultHeaders(): Record<string, string>;
    /**
     * Get default retry config
     */
    static get defaultRetryConfig(): Required<RetryConfig>;
    private static sleep;
}