import { BehaviorSubject, Observable } from 'rxjs';
import * as i0 from "@angular/core";
export type LangObject = {
    [obj: string]: LangObject | string;
};
export type Translation = {
    [key: string]: string | Translation;
};
export declare class YapI18nService {
    static warn: boolean;
    langObjects: {
        [lang: string]: {
            [obj: string]: Object;
        };
    };
    currentLang: string;
    parameterRegexp: RegExp;
    translations$: BehaviorSubject<Translation>;
    constructor();
    updateTranslations(): void;
    use(lang: string): void;
    addCoreTranslations(): void;
    addLangObject(lang: string, type: string, obj: Object): void;
    instantObject(key: string, params?: {
        [key: string]: any;
    }): any;
    instant(key: string, params?: {
        [key: string]: any;
    }): string;
    get(key: string, params?: {
        [key: string]: any;
    }): Observable<string>;
    static ɵfac: i0.ɵɵFactoryDeclaration<YapI18nService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<YapI18nService>;
}