import { Maybe } from '@opi_pib/ts-utility';
import { TranslationsObject } from '../../models/translations-object';
export declare class TranslationsBuilder {
    removeKeysWithEmptyString(translation: TranslationsObject): TranslationsObject;
    mergeOldTranslations(newTranslations: TranslationsObject, oldTranslations: TranslationsObject): TranslationsObject;
    private removeUnusedKeys;
    getOldTranslationObject(lang: string, outputTranslatorPath: string): Maybe<TranslationsObject>;
    findDuplicatedValues(translations: TranslationsObject): Record<string, number>;
}