code: def test_init_with_device_mesh(self):
      distribution = distribution_lib.Distribution(self.device_mesh)
      self.assertIs(distribution.device_mesh, self.device_mesh)
  
imports: import os
  from unittest import mock
  import numpy
  import pytest
  import tensorflow
  from keras import backend
  from keras import testing
  from keras.backend import distribution_lib
  from keras.distribution import distribution_lib
label_desc: Use image node_id 2 for calling the DistributionTest obj's underlying member method code with example usage: obj.test_init_with_device_mesh() without return types