class_docstr: Language dependent tokenizer of text document.
class_docstr_tok: ["Language","dependent","tokenizer","of","text","document","."]
code: def _get_word_tokenizer(self, language):
      if language in self.SPECIAL_WORD_TOKENIZERS:
          return self.SPECIAL_WORD_TOKENIZERS[language]
      else:
          return DefaultWordTokenizer()
  
imports: from __future__ import absolute_import
  from __future__ import division, print_function, unicode_literals
  import re
  import string
  import zipfile
  import nltk
  from .._compat import to_string, to_unicode, unicode
  from ..utils import normalize_language
label_desc: Use image node_id 4 for calling the Tokenizer obj's underlying member method code with example usage: obj._get_word_tokenizer(language) and returns: self, DefaultWordTokenizer