code: def _prepare_translations(self):
          
          if config.TRANSLATIONS in self.paths:
              LOGGER.info('Loading translations from %s',
                          self.paths[config.TRANSLATIONS])
              from tornado import locale
              locale.load_translations(self.paths[config.TRANSLATIONS])
              if config.DEFAULT_LOCALE in self._config:
                  LOGGER.info('Setting default locale to %s',
                              self._config[config.DEFAULT_LOCALE])
                  locale.set_default_locale(self._config[config.DEFAULT_LOCALE])
docs: Load in translations if they are set, and add the default locale as
          well.