code: def _test_ragged_structure_inequality_combinations():
      cases = [
          (
              ragged_tensor.RaggedTensorSpec(None, dtypes.int32, 1),
              ragged_tensor.RaggedTensorSpec(None, dtypes.int32, 2),
          ),
          (
              ragged_tensor.RaggedTensorSpec(
                  [3, None], dtypes.int32, 1
              ),
              ragged_tensor.RaggedTensorSpec(
                  [5, None], dtypes.int32, 1
              ),
          ),
          (
              ragged_tensor.RaggedTensorSpec(None, dtypes.int32, 1),
              ragged_tensor.RaggedTensorSpec(None, dtypes.float32, 1),
          ),
      ]
  
      def reduce_fn(x, y):
          spec1, spec2 = y
          return x + combinations.combine(spec1=spec1, spec2=spec2)
  
      return functools.reduce(reduce_fn, cases, [])
  
imports: import collections
  import dataclasses
  import functools
  from absl.testing import parameterized
  import numpy
  import wrapt
  from tensorflow.python.data.kernel_tests import test_base
  from tensorflow.python.data.ops import dataset_ops
  from tensorflow.python.data.util import nest
  from tensorflow.python.data.util import structure
  from tensorflow.python.framework import combinations
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import sparse_tensor
  from tensorflow.python.framework import tensor
  from tensorflow.python.framework import tensor_shape
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import tensor_array_ops
  from tensorflow.python.ops import variables
  from tensorflow.python.ops.ragged import ragged_factory_ops
  from tensorflow.python.ops.ragged import ragged_tensor
  from tensorflow.python.ops.ragged import ragged_tensor_value
  from tensorflow.python.platform import test
  from tensorflow.python.util.compat import collections_abc
label_desc: Use image node_id 4 for calling a global function with example usage: _test_ragged_structure_inequality_combinations() and returns: functools, unknown