export class Tc { _text: string; _level?: number | undefined; _omitPageNumber: boolean; _identifier?: string | undefined; constructor(t: string) { this._text = t; } level(l: number) { this._level = l; return this; } omitPageNumber() { this._omitPageNumber = true; return this; } identifier(id: string) { this._identifier = id; return this; } }