code: func (r Ticket_Survey) GetPreference() (err error) {
  	var resp datatypes.Void
  	err = r.Session.DoRequest("SoftLayer_Ticket_Survey", "getPreference", nil, &r.Options, &resp)
  	return
  }
docs: // (DEPRECATED) To opt in or out of future surveys, please follow the link found in the email survey.