code: def get_luminoth_home(create_if_missing=True):
      """Returns Luminoth's homedir."""
      # Get Luminoth's home directory (the default one or the overridden).
      path = os.path.abspath(
          os.environ.get("LUMI_HOME", DEFAULT_LUMINOTH_HOME)
      )
  
      # Create the directory if it doesn't exist.
      if create_if_missing and not os.path.exists(path):
          tf.gfile.MakeDirs(path)
  
      return path
  
label_desc: Use image node_id 1 for calling a global function with example usage: get_luminoth_home(create_if_missing) and returns: path