class_docstr: Tests for distributed save/load with the new load algorithm.
class_docstr_tok: ["Tests","for","distributed","save\/load","with","the","new","load","algorithm","."]
code: def test_snapshot_chunks_cardinality(self, num_repetitions: int):
      cluster = data_service_test_base.TestCluster(num_workers=1)
      snapshot_dir = data_service_test_base.TempDir()
      dataset = dataset_ops.Dataset.range(10)
      self.evaluate(
          distributed_save_op.distributed_save(
              dataset,
              snapshot_dir.full_path,
              cluster.dispatcher_address(),
          )
      )
  
      dataset = load_op._ListSnapshotChunksDataset(
          snapshot_dir.full_path
      )
      if num_repetitions != 1:
          dataset = dataset.repeat(num_repetitions)
  
      while self.evaluate(dataset.cardinality()) == dataset_ops.UNKNOWN:
          time.sleep(0.1)
      expected = (
          dataset_ops.INFINITE
          if num_repetitions is None
          else num_repetitions
      )
      self.assertEqual(self.evaluate(dataset.cardinality()), expected)
  
imports: import multiprocessing
  import os
  import threading
  import time
  from typing import Callable, Optional
  from absl.testing import parameterized
  import numpy
  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.experimental.ops import distributed_save_op
  from tensorflow.python.data.kernel_tests import checkpoint_test_base
  from tensorflow.python.data.kernel_tests import test_base
  from tensorflow.python.data.ops import dataset_ops
  from tensorflow.python.data.ops import load_op
  from tensorflow.python.framework import combinations
  from tensorflow.python.framework import errors
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import cond
  from tensorflow.python.ops import math_ops
  from tensorflow.python.platform import test
label_desc: Use image node_id 12 for calling the DistributedSaveLoadTest obj's underlying member method code with example usage: obj.test_snapshot_chunks_cardinality(num_repetitions) without return types