code: def _is_dir(self, path):
      # See if this is a "directory". If so, it's eligible to be part
      # of a namespace package. We test by seeing if the name, with an
      # appended path separator, exists.
      dirpath = path + path_sep
      # If dirpath is present in self._files, we have a directory.
      return dirpath in self._files
  
imports: import _frozen_importlib_external
  from _frozen_importlib_external import _unpack_uint16, _unpack_uint32
  import _frozen_importlib
  import _imp
  import _io
  import marshal
  import sys
  import time
  import _warnings
label_desc: Use image node_id 2 for calling a global function with example usage: _is_dir(path) and returns: unknown