code: def from_python_class(cls, python_class: type) -> PackageInfo:
      package_name = python_class.__module__.split(".")[0]
      package = __import__(package_name)
      version = getattr(package, "__version__", None)
      # TODO: Figure out how to retrieve commit hash.
      commit_hash = None
      return cls(package_name, version, commit_hash)
  
imports: from __future__ import annotations
  import abc
  import contextlib
  import dataclasses
  import difflib
  import io
  import logging
  import sys
  from typing import Any, Callable, Optional, Tuple
  import torch
  import torch.fx
  from torch._subclasses import fake_tensor
  from torch.fx.experimental.proxy_tensor import maybe_disable_fake_tensor_mode
  from torch.onnx._internal import _beartype
  from torch.onnx._internal.fx import diagnostics, onnxfunction_dispatcher
label_desc: Use image node_id 2 for calling the PackageInfo obj's underlying member method code with example usage: obj.from_python_class(cls, python_class) and returns: cls