code: def handle_deprecated_args(tokens, args, kwargs):
      
      num_args = len(args)
      pattern = args[0] if num_args else kwargs.get('pattern', None)
      regex = args[1] if num_args > 1 else kwargs.get('r', None)
  
      if pattern is not None:
          tokens = tools.filter_wildcard(tokens, pattern)
          sys.stderr.write(
              'Please use see().match() now. The "pattern" argument is '
              'deprecated and will be removed in a later release. \n')
  
      if regex is not None:
          tokens = tools.filter_regex(tokens, re.compile(regex))
          sys.stderr.write(
              'Please use see().match() now. The "r" argument is '
              'deprecated and will be removed in a later release. \n')
  
      return tokens
docs: Backwards compatibility with deprecated arguments ``pattern`` and ``r``.