code: def testReduce(self):
      dim = tensor_shape.Dimension(5)
      ctor, args = dim.__reduce__()
      self.assertEqual(ctor, tensor_shape.Dimension)
      self.assertEqual(args, (5,))
      reconstructed = ctor(*args)
      self.assertEqual(reconstructed, dim)
  
imports: from absl.testing import parameterized
  from tensorflow.core.framework import tensor_shape_pb2
  from tensorflow.core.function import trace_type
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import tensor_shape
  from tensorflow.python.framework import test_util
  from tensorflow.python.platform import googletest
label_desc: Use image node_id 14 for calling the DimensionTest obj's underlying member method code with example usage: obj.testReduce() without return types