code: func (r Ticket) GetTicketsClosedSinceDate(closeDate *datatypes.Time) (resp []datatypes.Ticket, err error) {
  	params := []interface{}{
  		closeDate,
  	}
  	err = r.Session.DoRequest("SoftLayer_Ticket", "getTicketsClosedSinceDate", params, &r.Options, &resp)
  	return
  }
docs: // Retrieve all tickets closed since a given date.