code: def __init__(self, *args, **kwargs):
      self.msg_recv = Event()
      super().__init__(*args, **kwargs)
  
imports: import os
  import platform
  import sys
  from threading import Event
  from unittest import TestCase, mock
  import pytest
  from IPython.utils.capture import capture_output
  from traitlets import DottedObjectName, Type
  from jupyter_client.client import validate_string_dict
  from jupyter_client.kernelspec import KernelSpecManager, NoSuchKernel
  from jupyter_client.manager import KernelManager, start_new_async_kernel, start_new_kernel
  from jupyter_client.threaded import ThreadedKernelClient, ThreadedZMQSocketChannel
label_desc: Use image node_id 1 to create a new CustomThreadedZMQSocketChannel object from inherited base classes: ThreadedZMQSocketChannel with example: obj = CustomThreadedZMQSocketChannel()