code: def test_subprocess_transport_not_implemented(self):
      transport = asyncio.SubprocessTransport()
  
      self.assertRaises(NotImplementedError, transport.get_pid)
      self.assertRaises(NotImplementedError, transport.get_returncode)
      self.assertRaises(
          NotImplementedError, transport.get_pipe_transport, 1
      )
      self.assertRaises(NotImplementedError, transport.send_signal, 1)
      self.assertRaises(NotImplementedError, transport.terminate)
      self.assertRaises(NotImplementedError, transport.kill)
  
file_path: cpython/Lib/test/test_asyncio/test_transports.py
imports: import unittest
  from unittest import mock
  import asyncio
  from asyncio import transports
label_desc: Use image node_id 6 for calling the TransportTests obj's underlying member method code with example usage: obj.test_subprocess_transport_not_implemented() without return types