def open_x11_channel(self, src_addr=None):
return self.open_channel("<STR_LIT>", src_addr=src_addr)<EOL>
Request a new channel to the client, of type ``"x11"``.  This
is just an alias for ``open_channel('x11', src_addr=src_addr)``.

:param tuple src_addr:
    the source address (``(str, int)``) of the x11 server (port is the
    x11 port, ie. 6010)
:return: a new `.Channel`

:raises:
    `.SSHException` -- if the request is rejected or the session ends
    prematurely