code: def language_token_to_name(languages):
      
  
      result = {}
  
      with open(os.path.join(localedir, 'languages.json'), 'r') as f:
          language_lookup = json.load(f)
  
      for language in languages:
          language = language.lower()
          try:
              result[language] = language_lookup[language]
          except KeyError:
              l10n_log('Language token lookup not found:', language, lvl=warn)
              result[language] = language
  
      return result
docs: Get a descriptive title for all languages