code: def __init__(self, vocab: Vocab):
      self.vocab = vocab
      self._mecab = try_mecab_import()  # type: ignore[func-returns-value]
      self._mecab_tokenizer = None
  
imports: from typing import Any, Dict, Iterator
  from ...language import BaseDefaults, Language
  from ...scorer import Scorer
  from ...symbols import POS, X
  from ...tokens import Doc
  from ...training import validate_examples
  from ...util import DummyTokenizer, load_config_from_str, registry
  from ...vocab import Vocab
  from .lex_attrs import LEX_ATTRS
  from .punctuation import TOKENIZER_INFIXES
  from .stop_words import STOP_WORDS
  from .tag_map import TAG_MAP
label_desc: Use image node_id 1 to create a new KoreanTokenizer object from inherited base classes: DummyTokenizer with example: obj = KoreanTokenizer(vocab)