import type { ProxyOptions } from './interfaces/ProxyInterface';
export declare class Proxy {
    private readonly _host;
    private readonly _port;
    private readonly _protocol;
    private _username;
    private _password;
    /**
     * Proxy constructor.
     *
     * @param {ProxyOptions} options 主機名、端口 (預設 3128)、協定 (預設 http)
     */
    constructor(options: ProxyOptions);
    /**
     * 登入 Proxy
     *
     * @param {string} username 帳號
     * @param {string} password 密碼
     */
    login(username: string, password: string): void;
    /**
     * 取得 Proxy URL
     *
     * @returns {string}
     */
    get(): string;
}