class_docstr: A pipe that can be written and read concurrently.
  Works with strings and bytes. Buffers the last written string/bytes only.
code: def close(self):
      self._wait_cond.acquire()
      try:
          self._closed = True
      finally:
          self._wait_cond.notify_all()
          self._wait_cond.release()
  
imports: import threading
label_desc: Use image node_id 5 for calling the Pipe obj's underlying member method code with example usage: obj.close() without return types