import { PageIdentity } from '../type';
export declare class Identity implements PageIdentity {
    id: number;
    lang: string;
    langIdx: number;
    private stale;
    constructor(id: number, lang?: string, langIdx?: number);
    ID(): number;
    identifierBase(): string;
    pageLanguage(): string;
    pageLanguageIndex(): number;
    pageIdentity(): PageIdentity;
    markStale(): void;
    isStale(): boolean;
    clearStale(): void;
}