.. method:: SubprocessTransport.terminate()
Ask the subprocess to stop, as in :meth:`subprocess.Popen.terminate`.
- This method is an alias for the :meth:`close` method.
On POSIX systems, this method sends SIGTERM to the subprocess.
On Windows, the Windows API function TerminateProcess() is called to
.. method:: SubprocessTransport.close()
- Ask the subprocess to stop by calling the :meth:`terminate` method
+ Kill the subprocess by calling the :meth:`kill` method
if the subprocess hasn't returned yet, and close transports of all
pipes (*stdin*, *stdout* and *stderr*).