How to use the @ohif/i18n.changeLanguage function in @ohif/i18n

onSave: ({ windowLevelData, hotkeyDefinitions, generalPreferences }) => {
      // TODO improve this strategy on windowLevel implementation
      hotkeysManager.setHotkeys(hotkeyDefinitions);

      const { language } = generalPreferences;

      // set new language
      i18n.changeLanguage(language);

      ownProps.hide();
      dispatch(
        setUserPreferences({
          windowLevelData,
          hotkeyDefinitions,
          generalPreferences,
        })
      );
    },
  };