code: public static boolean showUserPoolInfo(
        String user,
        Set<String> userFilterSet, PoolInfo poolInfo,
        Set<String> poolGroupFilterSet, Set<PoolInfo> poolInfoFilterSet) {
      boolean showUser = false;
      if (userFilterSet.isEmpty() || userFilterSet.contains(user)) {
        showUser = true;
      }
  
      return showUser &&
          showPoolInfo(poolInfo, poolGroupFilterSet, poolInfoFilterSet);
    }
docs: True if should be shown for this filtering.
  @param user User to check
  @param userFilterSet Set of valid users
  @param poolInfo Pool info to check
  @param poolGroupFilterSet Set of valid pool groups
  @param poolInfoFilterSet Set of valid pool infos
  @return True if should be shown.