code: def algo_to_pickle(
      algo: Algo,
      template_path: PathLike | None = None,
      **algo_meta_data: Any,
  ) -> str:
      """
      Export the Algo object to pickle file.
  
      Args:
          algo: Algo-like object.
          template_path: a str path that is needed to be added to the sys.path to instantiate the class.
          algo_meta_data: additional keyword to save into the dictionary, for example, model training info
              such as acc/best_metrics
  
      Returns:
          filename of the pickled Algo object
      """
      data = {
          "algo_bytes": pickle.dumps(algo),
          "template_path": str(template_path),
      }
      pkl_filename = os.path.join(
          algo.get_output_path(), "algo_object.pkl"
      )
      for k, v in algo_meta_data.items():
          data.update({k: v})
      data_bytes = pickle.dumps(data)
      with open(pkl_filename, "wb") as f_pi:
          f_pi.write(data_bytes)
      return pkl_filename
  
imports: from __future__ import annotations
  import logging
  import os
  import pickle
  import subprocess
  import sys
  from copy import deepcopy
  from numbers import Number
  from typing import Any, cast
  import numpy
  import torch
  from monai.auto3dseg import Algo
  from monai.bundle.config_parser import ConfigParser
  from monai.bundle.utils import ID_SEP_KEY
  from monai.config import PathLike
  from monai.data.meta_tensor import MetaTensor
  from monai.transforms import CropForeground, ToCupy
  from monai.utils import min_version, optional_import, run_cmd
label_desc: Use image node_id 8 for calling a global function with example usage: algo_to_pickle(algo, template_path) and returns: pkl_filename