@Override
            public ListTensorFlowVersionsRequest injectPageSize(
                ListTensorFlowVersionsRequest payload, int pageSize) {
              return ListTensorFlowVersionsRequest.newBuilder(payload)
                  .setPageSize(pageSize)
                  .build();
            }
The default scopes of the service.
java-tpu/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v1/stub/TpuStubSettings.java