class BasePaymentInitiationService extends AbstractService implements PaymentInitiationService {

    @Override
    public Response<String> getPaymentInitiationStatusAsString(PaymentService paymentService,
                                                               PaymentProduct paymentProduct,
                                                               String paymentId,
                                                               RequestHeaders requestHeaders,
                                                               RequestParams requestParams) {
        requireValid(validateGetPaymentInitiationStatusAsString(paymentService, paymentProduct, paymentId, requestHeaders, requestParams));

        String uri = getPaymentInitiationStatusUri(paymentService, paymentProduct, paymentId);
        uri = buildUri(uri, requestParams);
        Map<String, String> headersMap = populateGetHeaders(requestHeaders.toMap());

        return httpClient.get(uri)
                   .headers(headersMap)
                   .send(stringResponseHandler(), interceptors);
    }

    public  BasePaymentInitiationService(Aspsp aspsp, HttpClient httpClient);
    public  BasePaymentInitiationService(Aspsp aspsp,
                                        HttpClient httpClient,
                                        Interceptor requestBuilderInterceptor);
    public  BasePaymentInitiationService(Aspsp aspsp,
                                        HttpClient httpClient,
                                        LinksRewriter linksRewriter);
    public  BasePaymentInitiationService(Aspsp aspsp,
                                        HttpClient httpClient,
                                        Interceptor requestBuilderInterceptor,
                                        LinksRewriter linksRewriter);
    public  BasePaymentInitiationService(Aspsp aspsp,
                                        HttpClient httpClient,
                                        List<Interceptor> interceptors,
                                        LinksRewriter linksRewriter);

}