code: func (actor *Actor) GetServicePlanVisibilities(planGUID string) ([]ServicePlanVisibility, Warnings, error) {
  	visibilities, warnings, err := actor.CloudControllerClient.GetServicePlanVisibilities(ccv2.Filter{
  		Type:     constant.ServicePlanGUIDFilter,
  		Operator: constant.EqualOperator,
  		Values:   []string{planGUID},
  	})
  	if err != nil {
  		return nil, Warnings(warnings), err
  	}
  
  	var visibilitesToReturn []ServicePlanVisibility
  	for _, v := range visibilities {
  		visibilitesToReturn = append(visibilitesToReturn, ServicePlanVisibility(v))
  	}
  
  	return visibilitesToReturn, Warnings(warnings), nil
  }
docs: // GetServicePlanVisibilities fetches service plan visibilities for a plan by GUID.