<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def emit(self, record):
 """Store the message, not only the record."""

        self.records.append(Record(levelno=record.levelno, levelname=record.levelname,
                                   message=self.format(record)))
        return super(SetupLogChecker, self).emit(record)