def r(self, end=None):
if end:<EOL><INDENT>assert isinstance(end, datetime.datetime)<EOL>end = end.strftime(sacct.SACCT_DATE_FORMAT)<EOL>status = self.JOB_SACCT_DESCRIPTION % end<EOL><DEDENT>else:<EOL><INDENT>end = '<STR_LIT>'<EOL>status = None<EOL><DEDENT>self._returned_values.append(end.encode())<EOL>if status:<EOL><INDENT>self._returned_values.append(status.encode())<EOL><DEDENT>return self<EOL>
Append a sacct response to the Mock object
        informing that the job is still running