code: def testRandomOperation(self):
      random_operation = mtf.RandomOperation(
          self.mesh, self.ab_shape, tf.random_uniform
      )
      self.assertEqual(
          random_operation.splittable_dims, frozenset(["a", "b"])
      )
      self.assertEqual(random_operation.unsplittable_dims, frozenset())
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from absl.testing import parameterized
  import mesh_tensorflow
  from mesh_tensorflow import test_utils
  import numpy
  import tensorflow.compat.v1
  from tensorflow.python.framework import test_util
label_desc: Use image node_id 26 for calling the OperationSplittabilityTest obj's underlying member method code with example usage: obj.testRandomOperation() without return types