code: def language_file_exists(language_code):
      
      filename = '{0}.js'.format(language_code)
      path = os.path.join('tinymce', 'js', 'tinymce', 'langs', filename)
      return finders.find(path) is not None
docs: Check if TinyMCE has a language file for the specified lang code
  
      :param language_code: language code
      :type language_code: str
      :return: check result
      :rtype: bool