@Override
            public ApiFuture<ListReferenceImagesPagedResponse> getFuturePagedResponse(
                UnaryCallable<ListReferenceImagesRequest, ListReferenceImagesResponse> callable,
                ListReferenceImagesRequest request,
                ApiCallContext context,
                ApiFuture<ListReferenceImagesResponse> futureResponse) {
              PageContext<ListReferenceImagesRequest, ListReferenceImagesResponse, ReferenceImage>
                  pageContext =
                      PageContext.create(
                          callable, LIST_REFERENCE_IMAGES_PAGE_STR_DESC, request, context);
              return ListReferenceImagesPagedResponse.createAsync(pageContext, futureResponse);
            }
The default scopes of the service.
java-vision/google-cloud-vision/src/main/java/com/google/cloud/vision/v1p4beta1/stub/ProductSearchStubSettings.java