code: def is_standalone(filename):
      filename = os.path.abspath(os.path.normalize(filename))
      return _is_standalone(filename)
  
imports: import argparse
  import contextlib
  import logging
  import os
  import os.path
  import shutil
  import sys
  from .None import fsutil, strutil, iterutil, logging
label_desc: Use image node_id 4 for calling a global function with example usage: is_standalone(filename) and returns: _is_standalone