code: def set(self):
      with self._cond:
          self._flag.acquire(False)
          self._flag.release()
          self._cond.notify_all()
  
imports: import threading
  import sys
  import tempfile
  import _multiprocessing
  import time
  from .None import context
  from .None import process
  from .None import util
label_desc: Use image node_id 3 for calling the Event obj's underlying member method code with example usage: obj.set() without return types