@acquire<EOL><INDENT>def version(self, conn):<DEDENT>
command = b'<STR_LIT>'<EOL>response = yield from self._execute_simple_command(<EOL>conn, command)<EOL>if not response.startswith(const.VERSION):<EOL><INDENT>raise ClientException('<STR_LIT>', response)<EOL><DEDENT>version, number = response.split()<EOL>return number<EOL>
Current version of the server.

        :return: ``bytes``, memcached version for current the server.