import { Token } from './index';
import { MagicLinkToken } from './magicLink';
import type { Config, LintError } from '../base';
/**
 * external link
 *
 * 外链
 * @classdesc `{childNodes: [MagicLinkToken, ?Token]}`
 */
export declare abstract class ExtLinkToken extends Token {
    #private;
    readonly childNodes: readonly [MagicLinkToken] | readonly [MagicLinkToken, Token];
    abstract get firstChild(): MagicLinkToken;
    abstract get lastChild(): Token;
    abstract get children(): [MagicLinkToken] | [MagicLinkToken, Token];
    abstract get firstElementChild(): MagicLinkToken;
    abstract get lastElementChild(): Token;
    get type(): 'ext-link';
    /** text of the link / 链接显示文字 */
    get innerText(): string;
    set innerText(text: string);
    /** URL protocol / 协议 */
    get protocol(): string | undefined;
    set protocol(value: string);
    /** link / 链接 */
    get link(): string;
    set link(url: string);
    /**
     * @param url 网址
     * @param space 空白字符
     * @param text 链接文字
     */
    constructor(url?: string, space?: string, text?: string, config?: Config, accum?: Token[]);
    cloneNode(): this;
    /**
     * Set the text of the link
     *
     * 设置链接显示文字
     * @param str text of the link / 链接显示文字
     */
    setLinkText(str: string): void;
    /**
     * Get the URL
     *
     * 获取网址
     */
    getUrl(): URL;
    /**
     * Set the target of the link
     *
     * 设置外链目标
     * @param url URL containing the protocol / 含协议的网址
     */
    setTarget(url: string): void;
}