code: def _prepare_cmd_default(
      cmd: str, cmd_prefix: str | None = None, **kwargs: Any
  ) -> str:
      """
      Prepare the command for subprocess to run the script with the given arguments.
  
      Args:
          cmd: the command or script to run in the distributed job.
          cmd_prefix: the command prefix to run the script, e.g., "python", "python -m", "python3", "/opt/conda/bin/python3.8 ".
          kwargs: the keyword arguments to be passed to the script.
  
      Returns:
          the command to run with ``subprocess``.
  
      Examples:
          To prepare a subprocess command
          "python train.py run -k --config 'a,b'", the function can be called as
          - _prepare_cmd_default("train.py run -k", config=['a','b'])
          - _prepare_cmd_default("train.py run -k --config 'a,b'")
  
      """
      params = kwargs.copy()
  
      if (
          not cmd_prefix or "None" in cmd_prefix
      ):  # defaulting to 'python'
          cmd_prefix = "python"
  
      if not cmd_prefix.endswith(" "):
          cmd_prefix += " "  # ensure a space after the command prefix so that the script can be appended
  
      return cmd_prefix + cmd + check_and_set_optional_args(params)
  
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 12 for calling a global function with example usage: _prepare_cmd_default(cmd, cmd_prefix) and returns: unknown