@Override
            public ApiFuture<ListVodAdTagDetailsPagedResponse> getFuturePagedResponse(
                UnaryCallable<ListVodAdTagDetailsRequest, ListVodAdTagDetailsResponse> callable,
                ListVodAdTagDetailsRequest request,
                ApiCallContext context,
                ApiFuture<ListVodAdTagDetailsResponse> futureResponse) {
              PageContext<ListVodAdTagDetailsRequest, ListVodAdTagDetailsResponse, VodAdTagDetail>
                  pageContext =
                      PageContext.create(
                          callable, LIST_VOD_AD_TAG_DETAILS_PAGE_STR_DESC, request, context);
              return ListVodAdTagDetailsPagedResponse.createAsync(pageContext, futureResponse);
            }
The default scopes of the service.
java-video-stitcher/google-cloud-video-stitcher/src/main/java/com/google/cloud/video/stitcher/v1/stub/VideoStitcherServiceStubSettings.java