presto-parser/src/main/java/io/prestosql/sql/ExpressionFormatter.java/ExpressionFormatter/visitInPredicate
class ExpressionFormatter:        @Override
        protected String visitInPredicate(InPredicate node, Void context)
        {
            return "(" + process(node.getValue(), context) + " IN " + process(node.getValueList(), context) + ")";
        }