code: def create_transport(self, waiter=None):
      protocol = mock.Mock()
      transport = TestSubprocessTransport(
          self.loop,
          protocol,
          ["test"],
          False,
          None,
          None,
          None,
          0,
          waiter=waiter,
      )
      return (transport, protocol)
  
imports: import os
  import signal
  import sys
  import textwrap
  import unittest
  import warnings
  from unittest import mock
  import asyncio
  from asyncio import base_subprocess
  from asyncio import subprocess
  from test.test_asyncio import utils
  from test import support
  from test.support import os_helper
label_desc: Use image node_id 2 for calling the SubprocessTransportTests obj's underlying member method code with example usage: obj.create_transport(waiter) and returns: transport,  protocol