docs: def get_power_state(self, userid):
          """Get power status of a z/VM instance."""
          LOG.debug('Querying power stat of %s' % userid)
          requestData = "PowerVM " + userid + " status"
          action = "query power state of '%s'" % userid
          with zvmutils.log_and_reraise_smt_request_failed(action):
              results = self._request(requestData)
          with zvmutils.expect_invalid_resp_data(results):
              status = results['response'][0].partition(': ')[2]
          return status