code: func TransactionSetTypeOther(id int64) (int, error) {
  	return errNo(C.newrelic_transaction_set_type_other(C.long(id)))
  }
docs: /*
   * Set the transaction type to 'OtherTransaction'. This will automatically
   * change the category to 'Custom'. You can change the transaction category
   * using newrelic_transaction_set_category.
   *
   * @param transaction_id  id of transaction
   * @return  0 on success, else negative warning code or error code
   */