code: def transform(self, input_: list) -> list:
      """
      Remove digits from list of tokens.
  
      :param input_: list of tokens to be filtered.
  
      :return tokens: tokens of tokens without digits.
      """
      return [token for token in input_ if not token.isdigit()]
  
label_desc: Use image node_id 1 for calling the DigitRemoval obj's underlying member method code with example usage: obj.transform(input_) and returns: unknown