code: def testReadFileIgnoreError(self):
      def write_string_to_file(value, filename):
          with open(filename, "w") as f:
              f.write(value)
  
      filenames = [
          os.path.join(self.get_temp_dir(), "file_%d.txt" % i)
          for i in range(5)
      ]
      for filename in filenames:
          write_string_to_file(filename, filename)
  
      dataset = (
          dataset_ops.Dataset.from_tensor_slices(filenames)
          .map(io_ops.read_file, num_parallel_calls=2)
          .prefetch(2)
          .ignore_errors()
      )
      get_next = self.getNext(dataset)
  
      # All of the files are present.
      for filename in filenames:
          self.assertEqual(
              compat.as_bytes(filename), self.evaluate(get_next())
          )
      with self.assertRaises(errors.OutOfRangeError):
          self.evaluate(get_next())
  
      # Delete one of the files.
      os.remove(filenames[0])
  
      # Attempting to read filenames[0] will fail, but ignore_errors()
      # will catch the error.
      get_next = self.getNext(dataset)
      for filename in filenames[1:]:
          self.assertEqual(
              compat.as_bytes(filename), self.evaluate(get_next())
          )
      with self.assertRaises(errors.OutOfRangeError):
          self.evaluate(get_next())
  
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 4 for calling the IgnoreErrorsTest obj's underlying member method code with example usage: obj.testReadFileIgnoreError() without return types