code: func (actor Actor) EntitleIsolationSegmentToOrganizationByName(isolationSegmentName string, orgName string) (Warnings, error) {
  	isolationSegment, warnings, err := actor.GetIsolationSegmentByName(isolationSegmentName)
  	allWarnings := append(Warnings{}, warnings...)
  	if err != nil {
  		return allWarnings, err
  	}
  
  	organization, warnings, err := actor.GetOrganizationByName(orgName)
  	allWarnings = append(allWarnings, warnings...)
  	if err != nil {
  		return allWarnings, err
  	}
  
  	_, apiWarnings, err := actor.CloudControllerClient.EntitleIsolationSegmentToOrganizations(isolationSegment.GUID, []string{organization.GUID})
  	return append(allWarnings, apiWarnings...), err
  }
docs: // EntitleIsolationSegmentToOrganizationByName entitles the given organization
  // to use the specified isolation segment