code: def join_thread(self):
      debug("Queue.join_thread()")
      assert self._closed, "Queue {0!r} not closed".format(self)
      if self._jointhread:
          self._jointhread()
  
imports: import sys
  import os
  import threading
  import collections
  import time
  import types
  import weakref
  import errno
  from queue import Empty, Full
  import _multiprocessing
  from .None import connection
  from .None import context
  from .util import debug, info, Finalize, register_after_fork, is_exiting
label_desc: Use image node_id 14 for calling the Queue obj's underlying member method code with example usage: obj.join_thread() without return types