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