import { TagToken } from './index';
import { SyntaxToken } from '../syntax';
import type { Config } from '../../base';
import type { Token } from '../../internal';
/**
 * `<tvar>`
 * @classdesc `{childNodes: [SyntaxToken]}`
 */
export declare abstract class TvarToken extends TagToken {
    #private;
    readonly childNodes: readonly [SyntaxToken];
    abstract get firstChild(): SyntaxToken;
    abstract get lastChild(): SyntaxToken;
    abstract get children(): [SyntaxToken];
    abstract get firstElementChild(): SyntaxToken;
    abstract get lastElementChild(): SyntaxToken;
    get type(): 'tvar';
    /** whether to use the legacy syntax / 是否使用旧语法 */
    get legacy(): boolean;
    /**
     * @param tag 标签名
     * @param attr 标签属性
     * @param closing 是否闭合
     */
    constructor(tag: string, attr: string, closing: boolean, config?: Config, accum?: Token[]);
    cloneNode(): this;
    /**
     * Set the tvar name.
     *
     * 设置tvar变量名。
     * @param name name / 变量名
     * @since v1.28.0
     * @throws `Error` 闭合标签
     * @throws `SyntaxError` 同时包含单引号和双引号
     */
    setName(name: string): void;
}