code: def testEmpty(self):
      dataset = dataset_ops.Dataset.range(4).group_by_window(
          key_func=lambda _: 0,
          reduce_func=lambda _, xs: xs,
          window_size=0,
      )
      get_next = self.getNext(dataset)
      with self.assertRaisesRegex(
          errors.InvalidArgumentError,
          "Window size must be greater than zero, but got 0.",
      ):
          print(self.evaluate(get_next()))
  
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 9 for calling the GroupByWindowTest obj's underlying member method code with example usage: obj.testEmpty() without return types