code: def testDistributeLargeGraphThenRegisterWorker(self, work_dir):
      cluster = data_service_test_base.TestCluster(
          num_workers=0, work_dir=work_dir, fault_tolerant_mode=False
      )
      # Larger than default OSS grpc message size limit of 4MB.
      tensor = array_ops.ones((2, 1000, 1000), dtype=dtypes.float32)
      ds = dataset_ops.Dataset.from_tensors(tensor)
      ds = self.make_distributed_dataset(ds, cluster)
      it = iter(ds)
      cluster.add_worker()
      self.assertAllEqual(next(it), tensor)
  
imports: import multiprocessing
  import threading
  import time
  from absl.testing import parameterized
  from tensorflow.python.data.experimental.kernel_tests.service import test_base
  from tensorflow.python.data.experimental.ops import data_service_ops
  from tensorflow.python.data.kernel_tests import test_base
  from tensorflow.python.data.ops import dataset_ops
  from tensorflow.python.framework import combinations
  from tensorflow.python.framework import dtypes
  from tensorflow.python.ops import array_ops
  from tensorflow.python.platform import test
label_desc: Use image node_id 16 for calling the FaultToleranceTest obj's underlying member method code with example usage: obj.testDistributeLargeGraphThenRegisterWorker(work_dir) without return types