'Send the shutdown message to the Connection.
@param how: for socket.socket this flag determines whether read, write
or both type operations are supported.  OpenSSL.SSL.Connection doesn\'t
support this so this parameter is IGNORED
@return: true if the shutdown message exchange is completed and false
otherwise (in which case you call recv() or send() when the connection
becomes readable/writeable.
@rtype: bool'

def shutdown(self, how):

    return self.__ssl_conn.shutdown()
