code: def clear(self):
      self.cond.acquire()
      self.cond.notify_all()
      self.cond.release()
  
file_path: pysc2/pysc2/lib/run_parallel_test.py
imports: import threading
  from absl.testing import absltest
  from pysc2.lib import run_parallel
label_desc: Use image node_id 3 for calling the Barrier obj's underlying member method code with example usage: obj.clear() without return types