<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def ssh(self, enable=True, comment=None):
 """ Enable or disable SSH :param bool enable: enable or disable SSH daemon :param str comment: optional comment for audit :raises NodeCommandFailed: cannot enable SSH daemon :return: None """

        self.make_request(
            NodeCommandFailed,
            method='update',
            resource='ssh',
            params={'enable': enable, 'comment': comment})