code: def test_termination(self):
      def fn():
          for i in range(0, 10):
              print(
                  "index {}, iteration {}".format(
                      self._worker_idx(), i
                  ),
                  flush=True,
              )
              time.sleep(5)
  
      mpr = multi_process_runner.MultiProcessRunner(
          fn,
          multi_worker_test_base.create_cluster_spec(num_workers=2),
          return_output=True,
      )
      mpr.start()
      time.sleep(5)
      mpr.terminate("worker", 0)
  
      std_stream_results = mpr.join().stdout
  
      # Worker 0 is terminated in the middle, so it should not have iteration 9
      # printed.
      self.assertIn(
          "[worker-0]:    index 0, iteration 0\n", std_stream_results
      )
      self.assertNotIn(
          "[worker-0]:    index 0, iteration 9\n", std_stream_results
      )
      self.assertIn(
          "[worker-1]:    index 1, iteration 0\n", std_stream_results
      )
      self.assertIn(
          "[worker-1]:    index 1, iteration 9\n", std_stream_results
      )
  
imports: import ctypes
  import json
  import os
  import sys
  import threading
  import time
  import unittest
  from absl import logging
  from absl.testing import parameterized
  from tensorflow.python.distribute import combinations
  from tensorflow.python.distribute import multi_process_runner
  from tensorflow.python.distribute import multi_worker_test_base
  from tensorflow.python.eager import context
  from tensorflow.python.eager import test
label_desc: Use image node_id 7 for calling the MultiProcessRunnerTest obj's underlying member method code with example usage: obj.test_termination() without return types