import type { UnversionedVersion } from './types.js';
export declare const removeBothEndsSlashes: (str?: string) => string;
export declare const getPdfName: (lang: string, userBase?: string, title?: string) => string;
export declare const isExplicitlyUnversioned: (version?: string) => version is UnversionedVersion;
export declare const isUnversioned: (version?: string) => version is undefined | "" | UnversionedVersion;
export declare const getUnversionedVersion: (version?: string) => string | undefined;
