code: def get_path_completion_type(cwords, cword, opts):
      
      if cword < 2 or not cwords[cword - 2].startswith('-'):
          return
      for opt in opts:
          if opt.help == optparse.SUPPRESS_HELP:
              continue
          for o in str(opt).split('/'):
              if cwords[cword - 2].split('=')[0] == o:
                  if not opt.metavar or any(
                          x in ('path', 'file', 'dir')
                          for x in opt.metavar.split('/')):
                      return opt.metavar
docs: Get the type of path completion (``file``, ``dir``, ``path`` or None)
  
      :param cwords: same as the environmental variable ``COMP_WORDS``
      :param cword: same as the environmental variable ``COMP_CWORD``
      :param opts: The available options to check
      :return: path completion type (``file``, ``dir``, ``path`` or None)