import { Observable } from 'rxjs';
import { NgxSliderRecaptchaImageService } from '../core/ngx-slider-recaptcha-image-service.interface';
import * as i0 from "@angular/core";
export declare class DefaultNgxSliderRecaptchaImageService implements NgxSliderRecaptchaImageService {
    getSliderImage(): Observable<string>;
    static ɵfac: i0.ɵɵFactoryDeclaration<DefaultNgxSliderRecaptchaImageService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<DefaultNgxSliderRecaptchaImageService>;
}