import { HttpBackend } from '@angular/common/http';
import { ConfigService } from '@igo2/core/config';
import { Observable } from 'rxjs';
import { LanguageLoaderBase, LanguageOptions } from './language.interface';
export declare class LanguageLoader implements LanguageLoaderBase {
    private httpClient;
    private _isLoaded$;
    isLoaded$: Observable<boolean>;
    suffix: string;
    prefix?: string | string[];
    options: LanguageOptions;
    constructor(handler: HttpBackend, options: LanguageOptions);
    getTranslation(lang: string): Observable<any>;
}
export declare class LanguageLoaderWithAsyncConfig extends LanguageLoader {
    private configService;
    constructor(handler: HttpBackend, configService: ConfigService, prefix?: string | string[], suffix?: string);
    getTranslation(lang: string): Observable<any>;
}