<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def reset_all(self):
 """Reset status for all servers in the list"""


        self._LOG.debug("Marking all CMs as Good.")

        for key in self.list:
            self.mark_good(key)