code: def testPluginIsNotActiveByDefault(self):
      self.assertFalse(self.plugin.is_active())
  
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 4 for calling the DebuggerV2PluginTest obj's underlying member method code with example usage: obj.testPluginIsNotActiveByDefault() without return types