Base class for transports.
- .. method:: close(self)
+ .. method:: close()
Close the transport. If the transport has a buffer for outgoing
data, buffered data will be flushed asynchronously. No more data
protocol's :meth:`connection_lost` method will be called with
:const:`None` as its argument.
- .. method:: is_closing(self)
+ .. method:: is_closing()
Return ``True`` if the transport is closing or is closed.
if it hasn't returned, similarly to the
:attr:`subprocess.Popen.returncode` attribute.
- .. method:: kill(self)
+ .. method:: kill()
Kill the subprocess, as in :meth:`subprocess.Popen.kill`.