code: def testStopDispatcher(self):
      dispatcher = server_lib.DispatchServer()
      dispatcher.stop()
      dispatcher.stop()
  
imports: import logging
  import tempfile
  import threading
  import unittest
  from tensorflow.python.data.experimental.service import server_lib
  from tensorflow.python.framework import errors
  from tensorflow.python.platform import test
  from tensorflow.python.profiler import profiler_client
label_desc: Use image node_id 10 for calling the ServerLibTest obj's underlying member method code with example usage: obj.testStopDispatcher() without return types