public static CuratorTransaction from(List<CuratorOperation> operations, Curator curator) {
        CuratorTransaction transaction = new CuratorTransaction(curator);
        for (Operation operation : operations)
            transaction.add(operation);
        return transaction;
    }
Returns a curator transaction having a list of operations
zkfacade/src/main/java/com/yahoo/vespa/curator/transaction/CuratorTransaction.java