code: def config_test_mesh(mesh: layout_lib.Mesh):
      """No Op.
  
      Args:
        mesh: The DTensor mesh.
      """
      if config.backend_is_pw():
          del mesh
  
file_path: tensorflow/tensorflow/dtensor/python/tests/test_backend_util.py
imports: import multiprocessing
  import os
  from tensorflow.dtensor.python import accelerator_util
  from tensorflow.dtensor.python import config
  from tensorflow.dtensor.python import layout
  from tensorflow.dtensor.python.tests.test_backend_name import DTENSOR_TEST_UTIL_BACKEND
  from tensorflow.python.platform import test
label_desc: Use image node_id 1 for calling a global function with example usage: config_test_mesh(mesh) without return types