code: func (u *Updater) UpdateOrgs() error {
  	ocs, err := u.Cfg.GetOrgConfigs()
  	if err != nil {
  		return err
  	}
  	for _, oc := range ocs {
  		org, err := u.OrgManager.FindOrg(oc.Org)
  		if err != nil {
  			return errors.Wrap(err, "finding org for org configs in update orgs")
  		}
  		isolationSegmentMap, err := u.isolationSegmentMap()
  		if err != nil {
  			return err
  		}
  
  		isolationSegmentGUID, err := u.getIsolationSegmentGUID(oc.DefaultIsoSegment, isolationSegmentMap)
  		if err != nil {
  			return err
  		}
  
  		if org.DefaultIsolationSegmentGuid != isolationSegmentGUID {
  			if u.Peek {
  				if isolationSegmentGUID != "" {
  					lo.G.Infof("[dry-run]: set default isolation segment for org %s to %s", oc.Org, oc.DefaultIsoSegment)
  				} else {
  					lo.G.Infof("[dry-run]: reset default isolation segment for org %s", oc.Org)
  				}
  				continue
  			}
  
  			if isolationSegmentGUID != "" {
  				lo.G.Infof("set default isolation segment for org %s to %s", oc.Org, oc.DefaultIsoSegment)
  				err = u.Client.DefaultIsolationSegmentForOrg(org.Guid, isolationSegmentGUID)
  				if err != nil {
  					return err
  				}
  			} else {
  				lo.G.Infof("reset default isolation segment for org %s", oc.Org)
  				err = u.Client.ResetDefaultIsolationSegmentForOrg(org.Guid)
  				if err != nil {
  					return err
  				}
  			}
  
  		}
  	}
  	return nil
  }
docs: // UpdateOrgs sets the default isolation segment for each org,
  // as specified in the cf-mgmt config.