code: def testConcurrentCallsToPluginIsActiveWhenNotActive(self):
      results = collections.deque()
  
      def query_is_active():
          results.append(self.plugin.is_active())
  
      threads = [
          threading.Thread(target=query_is_active) for _ in range(4)
      ]
      for thread in threads:
          thread.start()
      for thread in threads:
          thread.join()
      self.assertEqual(list(results), [False] * 4)
  
imports: import collections
  import json
  import os
  import socket
  import threading
  import tensorflow
  from werkzeug import test
  from werkzeug import wrappers
  from tensorboard.backend import application
  from tensorboard.plugins import base_plugin
  from tensorboard.plugins.debugger_v2 import debug_data_multiplexer
  from tensorboard.plugins.debugger_v2 import debugger_v2_plugin
label_desc: Use image node_id 6 for calling the DebuggerV2PluginTest obj's underlying member method code with example usage: obj.testConcurrentCallsToPluginIsActiveWhenNotActive() without return types