code: def test(self, verify_fn):
      verify_fn(self, self._build_ds, num_outputs=4)
  
imports: import os
  import sys
  from absl.testing import parameterized
  import numpy
  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 options
  from tensorflow.python.data.ops import readers
  from tensorflow.python.framework import combinations
  from tensorflow.python.framework import errors
  from tensorflow.python.lib.io import python_io
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import io_ops
  from tensorflow.python.platform import test
  from tensorflow.python.util import compat
label_desc: Use image node_id 2 for calling the IgnoreErrorsCheckpointTest obj's underlying member method code with example usage: obj.test(verify_fn) without return types