code: def _cmd_for_call_f(call_f):
      closure = call_f.__closure__
      if len(closure) != 2:
          raise SystemExit(
              f"unexpected closure len for {call_f}: {closure}"
          )
      cmd = closure[1].cell_contents
      if not isinstance(cmd, click.Command):
          raise SystemExit(
              f"unexpected entry for group in closure for {call_f}: {cmd}"
          )
      return cmd
  
imports: import argparse
  import json
  import logging
  import os
  import subprocess
  import sys
  import click
  from guild import python_util
  from guild import util
  from .None import import_argparse_flags_main
  from .None import python_script
label_desc: Use image node_id 5 for calling a global function with example usage: _cmd_for_call_f(call_f) and returns: cmd