code: public Map<String, String> getUsersGroups() {
          Map<String, String> usersGroups = new LinkedHashMap<String, String>();
          for (Map.Entry<String, List<String>> entry : USERS_GROUPS.entrySet()) {
              String key = entry.getKey();
              usersGroups.put(key + " (" + entry.getValue().get(0) + ")", key);
          }
          return usersGroups;
      }
docs: Gets the users groups.
  
  @return the users groups