code: def test_auto_multi_worker_strategy(self):
      self.setup_py()
      script_lines = self.get_preprocessed_entry_point(worker_count=2)
      expected_lines = [
          "import os\n",
          "import tensorflow as tf\n",
          'os.environ["TF_KERAS_RUNNING_REMOTELY"]="1"\n',
          "import faulthandler\n",
          "faulthandler.enable()\n",
          "import sys\n",
          "for flag in sys.argv[1:]:\n",
          '  if flag.startswith("TUNER_ID"):\n',
          '    os.environ["KERASTUNER_TUNER_ID"]=flag\n',
          (
              "strategy = tf.distribute.experimental."
              "MultiWorkerMirroredStrategy()\n"
          ),
          "tf.distribute.experimental_set_strategy(strategy)\n",
          'exec(open("{}").read())\n'.format(self.entry_point_name),
      ]
      self.assert_and_cleanup(expected_lines, script_lines)
  
file_path: cloud/src/python/tensorflow_cloud/core/tests/unit/preprocess_test.py
imports: import os
  from absl.testing import absltest
  import mock
  from tensorflow_cloud.core import machine_config
  from tensorflow_cloud.core import preprocess
label_desc: Use image node_id 7 for calling the TestPreprocess obj's underlying member method code with example usage: obj.test_auto_multi_worker_strategy() without return types