import { Observable } from 'rxjs';
import { NgxSliderRecaptchaVerificationService } from '../core/ngx-slider-recaptcha-verification-service.interface';
import { VerificationResponse } from '../core/ngx-slider-recaptcha-verification-response.interface';
import { VerificationRequest } from '../core/ngx-slider-recaptcha-verification-request.interface';
import * as i0 from "@angular/core";
export declare class DefaultNgxSliderRecaptchaVerificationService implements NgxSliderRecaptchaVerificationService<VerificationRequest, VerificationResponse> {
    verify(verificationRequest: VerificationRequest): Observable<VerificationResponse>;
    static ɵfac: i0.ɵɵFactoryDeclaration<DefaultNgxSliderRecaptchaVerificationService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<DefaultNgxSliderRecaptchaVerificationService>;
}