<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def keep_artifacts(self, **kwargs):
 """Prevent artifacts from being deleted when expiration is set. Args: **kwargs: Extra options to send to the server (e.g. sudo) Raises: GitlabAuthenticationError: If authentication is not correct GitlabCreateError: If the request could not be performed """

        path = '%s/%s/artifacts/keep' % (self.manager.path, self.get_id())
        self.manager.gitlab.http_post(path)