presto-geospatial/src/main/java/io/prestosql/plugin/geospatial/SpatialPartitioningStateSerializer.java/SpatialPartitioningStateSerializer/serialize
class SpatialPartitioningStateSerializer:    @Override
    public void serialize(SpatialPartitioningState state, BlockBuilder out)
    {
        throw new UnsupportedOperationException();
    }