code: def test_pipe(self):
      reader, writer = Pipe()
  
      writer.send(b"hello")
      data = reader.recv()
      assert data == b"hello"
  
imports: import fiber
  import pickle
  import time
  import pytest
  import docker
  import collections
  import multiprocessing
  from fiber.queues import Pipe, SimpleQueue
  from fiber.socket import Socket
label_desc: Use image node_id 2 for calling the TestQueue obj's underlying member method code with example usage: obj.test_pipe() without return types