code: def check_characters_to_exclude_from_vocabulary(
      characters_to_exclude_from_vocabulary,
  ):
      for i, char in enumerate(characters_to_exclude_from_vocabulary):
          if not isinstance(char, str):
              raise ValueError(
                  f"Character to exclude from vocabulary has to `str`, whereas an element in position {i} is of "
                  f"type `{type(char)}`."
              )
          elif len(char) != 1:
              raise ValueError(
                  f"A length of an element of `characters_to_exclude_from_vocabulary` parameter has to be 1. "
                  f"The length of an element in position {i} is {len(char)}."
              )
  
imports: import json
  import os
  import warnings
  from collections import Counter
  from enum import Enum
  from pathlib import Path
  from typing import Dict, List, NewType, Optional, Union
  from nemo.collections.common.tokenizers.tokenizer_spec import TokenizerSpec
label_desc: Use image node_id 24 for calling the CharTokenizer obj's underlying member method code with example usage: obj.check_characters_to_exclude_from_vocabulary(characters_to_exclude_from_vocabulary) without return types