code: def testPrintOperation(self):
      print_operation = mtf.PrintOperation(
          self.x, [self.x], "Tensor x: "
      )
      self.assertEqual(
          print_operation.splittable_dims, frozenset(["a", "b"])
      )
      self.assertEqual(print_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 24 for calling the OperationSplittabilityTest obj's underlying member method code with example usage: obj.testPrintOperation() without return types