fetchGroup = async (groupId) => {
  if (config.APP_ENV !== 'production') return new Group(mockGroups[groupId]);
  try {
    const { data } = await fetchGroupSummary({ groupId });
    return new Group(data);
  } catch {
    return new Group({ groupName: t('__SOURCE_NAME_SOME_GROUP') });
  }
}
@param {string} groupId
@returns {Promise<Group>}