export declare class ChapterId {
    value: string;
    get rootChapter(): string;
    get numbering(): string;
    get parentId(): ChapterId | undefined;
    get youngerSiblingId(): ChapterId | undefined;
    constructor(value: string);
    _chapterSynonyms: string[];
    chapterSynonyms: string[];
    splitAtChapterSynonym(): string[];
    get chapterSynonym(): string | undefined;
}