import Tag from '../Tag';
import { ParseOptions, TagOptions } from '../type';
declare class Th extends Tag {
    constructor(str: string, tagName: string | undefined, options: TagOptions);
    beforeMergeSpace(content: string): string;
    parseValidSubTag(subTagStr: string, subTagName: string, options: ParseOptions): [string, any];
    exec(prevGap?: string, endGap?: string): string;
}
export default Th;