code: def _load_replacement_patterns(self):
          
          if self.language == 'latin':
              warnings.warn(
                          "LemmaReplacer is deprecated and will soon be removed from CLTK. Please use the BackoffLatinLemmatizer at cltk.lemmatize.latin.backoff.",
                          DeprecationWarning,
                          stacklevel=2)
              rel_path = os.path.join('~','cltk_data',
                                      self.language,
                                      'model','latin_models_cltk',
                                      'lemmata','latin_lemmata_cltk.py')
              path = os.path.expanduser(rel_path)
              #logger.info('Loading lemmata. This may take a minute.')
              loader = importlib.machinery.SourceFileLoader('latin_lemmata_cltk', path)
  
          elif self.language == 'greek':
              rel_path = os.path.join('~','cltk_data',
                                      self.language,
                                      'model','greek_models_cltk',
                                      'lemmata','greek_lemmata_cltk.py')
              path = os.path.expanduser(rel_path)
              #logger.info('Loading lemmata. This may take a minute.')
              loader = importlib.machinery.SourceFileLoader('greek_lemmata_cltk', path)
          module = loader.load_module()
          lemmata = module.LEMMATA
          return lemmata
docs: Check for availability of lemmatizer for a language.