@SuppressWarnings("unchecked")
    public static final <L, R> ClickHousePair<L, R> of(L left, R right) {
        if (left == null && right == null) {
            return (ClickHousePair<L, R>) EMPTY;
        }

        return new ClickHousePair<>(left, right);
    }
Immutable pair with two values: left and right.
clickhouse-r2dbc/src/main/java/com/clickhouse/r2dbc/ClickHousePair.java