code: def testConvertToLayoutRules(self, inputs):
      layout_rules = mtf.convert_to_layout_rules(inputs)
      self.assertEqual(
          layout_rules._pairs,
          mtf.LayoutRules(
              [("d_ff", "model"), ("heads", "model")]
          )._pairs,
      )
  
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 5 for calling the MeshTensorFlowTest obj's underlying member method code with example usage: obj.testConvertToLayoutRules(inputs) without return types