presto-thrift-api/src/main/java/io/prestosql/plugin/thrift/api/datatypes/PrestoThriftBoolean.java/PrestoThriftBoolean/getNulls
class PrestoThriftBoolean:    @Nullable
    @ThriftField(value = 1, requiredness = OPTIONAL)
    public boolean[] getNulls()
    {
        return nulls;
    }