presto-thrift-api/src/main/java/io/prestosql/plugin/thrift/api/valuesets/PrestoThriftAllOrNoneValueSet.java/PrestoThriftAllOrNoneValueSet/toString
class PrestoThriftAllOrNoneValueSet:    @Override
    public String toString()
    {
        return toStringHelper(this)
                .add("all", all)
                .toString();
    }