import type { OutgoingHttpHeaders } from 'node:http';
import type { RequestOptions } from 'node:https';
import type { AnyObject } from '../../types';
interface ReqOptions extends Omit<RequestInit, 'headers'> {
    headers?: OutgoingHttpHeaders;
}
export interface ReqConfig {
    cookie?: string;
    headers?: OutgoingHttpHeaders;
    baseURL?: string;
    reqOptions?: ReqOptions | RequestOptions;
}
export declare function getRandomUA(keyword?: string): string;
export declare class ReqBase {
    protected headers: OutgoingHttpHeaders;
    protected isBrowser: boolean;
    protected config: ReqConfig;
    constructor(config?: string | ReqConfig, headers?: OutgoingHttpHeaders);
    protected formatUrl(url: string | URL): URL;
    getConfig(): {
        cookie?: string;
        headers?: OutgoingHttpHeaders;
        baseURL?: string;
        reqOptions?: ReqOptions | RequestOptions;
    };
    setConfig(cfg: ReqConfig): void;
    getHeaders(urlObject?: URL, headers?: OutgoingHttpHeaders): OutgoingHttpHeaders;
    setHeaders(headers: OutgoingHttpHeaders, type?: 'merge' | 'reset'): this;
    getCookie(isString?: true): string;
    getCookie(isString: false): Record<string, string>;
}
export declare class ReqFetch extends ReqBase {
    static instance: ReqFetch;
    static getInstance(): ReqFetch;
    constructor(cookie?: string | (Omit<ReqConfig, 'reqOptions'> & {
        reqOptions?: ReqOptions;
    }), headers?: OutgoingHttpHeaders);
    req(url: string | URL, parameters?: AnyObject, options?: ReqOptions, autoRedirect?: boolean): Promise<Response>;
    request<T = AnyObject>(method: string, url: string | URL, parameters?: AnyObject, options?: ReqOptions): Promise<{
        response: Response;
        buffer: ArrayBuffer;
        data: T;
    }>;
    get<T = AnyObject>(url: string, parameters?: AnyObject, headers?: OutgoingHttpHeaders, options?: ReqOptions): Promise<{
        response: Response;
        buffer: ArrayBuffer;
        data: T;
    }>;
    post<T = AnyObject>(url: string, parameters: AnyObject, headers?: OutgoingHttpHeaders, options?: ReqOptions): Promise<{
        response: Response;
        buffer: ArrayBuffer;
        data: T;
    }>;
}
export {};