Missing compression methods that seemed to work previously

Hi,
I intended to use [snapista](https://github.com/snap-contrib/snapista) which is using snappy:

$ grep -R 'from snappy'
src/snapista/graph.py:from snappy import GPF
src/snapista/operatorparams.py:from snappy import GPF
src/snapista/operator.py:from snappy import GPF, jpy

but unfortunately neither GPF nor jpy are working:

$ python3
Python 3.11.2 (main, Mar 13 2023, 12:18:29) [GCC 12.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from snappy import GPF
Traceback (most recent call last):
File "", line 1, in
ImportError: cannot import name 'GPF' from 'snappy' (/usr/lib/python3/dist-packages/snappy/__init__.py)
>>> from snappy import jpy
Traceback (most recent call last):
File "", line 1, in
ImportError: cannot import name 'jpy' from 'snappy' (/usr/lib/python3/dist-packages/snappy/__init__.py)

I've found [some website](https://forum.step.esa.int/t/slower-snappy-processing/6354/5) mentioning even more compression methods (`ProductIO` and `HashMap`) which also do not work in version 0.6.1 which I tried (I also tried version 0.5.3 with same result). Am I missing something in my setup or is the code using snappy in this way outdated?

Kind regards, Andreas.

Start by comparing the imports in snapista's src/snapista/graph.py, operatorparams.py, and operator.py with the APIs exposed by python-snappy 0.6.1 and 0.5.3. Reproduce the reported Python 3.11 import errors, then document whether GPF, jpy, ProductIO, and HashMap are supported or identify the compatibility change needed.

Do mô hình lập chỉ mục viết ra từ nội dung của issue.