@Override
            public ApiFuture<ListDeploymentRevisionsPagedResponse> getFuturePagedResponse(
                UnaryCallable<ListDeploymentRevisionsRequest, ListDeploymentRevisionsResponse>
                    callable,
                ListDeploymentRevisionsRequest request,
                ApiCallContext context,
                ApiFuture<ListDeploymentRevisionsResponse> futureResponse) {
              PageContext<
                      ListDeploymentRevisionsRequest, ListDeploymentRevisionsResponse, Deployment>
                  pageContext =
                      PageContext.create(
                          callable, LIST_DEPLOYMENT_REVISIONS_PAGE_STR_DESC, request, context);
              return ListDeploymentRevisionsPagedResponse.createAsync(pageContext, futureResponse);
            }
The default scopes of the service.
java-telcoautomation/google-cloud-telcoautomation/src/main/java/com/google/cloud/telcoautomation/v1alpha1/stub/TelcoAutomationStubSettings.java