import { Edition } from '../model/Edition.js';
/**
 * What the sigla are read off: the versions alone, or the edition, whose
 * copies tell which versions a witness shows.
 * @category Versions and stemma
 */
export type Stemma = Pick<Edition, 'versions'> | Edition;
/**
 * The siglum of every version, as the stemma stands: where it sits
 * (`alongTheStemma`) and, given the edition, whether any copy shows it.
 *
 * A version no copy's features carry at first hand is inferred, whether
 * it is reached only through the versions derived from it or a copy does
 * no more than state that it carries it. Its siglum is lowercased, so
 * that r3 stands to R3 as a reconstructed state stands to a witnessed
 * one. Handed the versions alone, the sigla cannot tell and stay in
 * capitals throughout.
 *
 * A siglum is computed anew when the stemma or the copies change, so
 * nothing should cite one without saying which state it belongs to.
 * @category Versions and stemma
 */
export declare const siglaOf: (stemma: Stemma) => ReadonlyMap<string, string>;
/**
 * The siglum of one version as the stemma stands, or nothing where the edition holds no such version.
 * @category Versions and stemma
 */
export declare const siglumOf: (stemma: Stemma, versionId: string) => string | undefined;