code: def _build_dataset(self, components):
      dataset = dataset_ops.Dataset.from_tensor_slices(
          components
      ).repeat(-1)
      dataset = dataset.group_by_window(
          key_func=lambda x: x % 3,
          reduce_func=lambda _, xs: xs.batch(4),
          window_size=4,
      )
      return dataset
  
imports: from absl.testing import parameterized
  import numpy
  from tensorflow.core.lib.core import error_codes_pb2
  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.framework import combinations
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import errors
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import tensor_shape
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops import string_ops
  from tensorflow.python.platform import test
label_desc: Use image node_id 1 for calling the GroupByWindowCheckpointTest obj's underlying member method code with example usage: obj._build_dataset(components) and returns: dataset