docs: private Map<String, List<MongoElement>> getMongoElements() throws Exception {
          for (MongoElement mongo : serverConfig.getMongos()) {
              addMongoElementToMap(mongo);
          }
          for (MongoDBElement mongoDB : serverConfig.getMongoDBs()) {
              if (mongoDB.getMongo() != null) {
                  addMongoElementToMap(mongoDB.getMongo());
              }
          }
          return mongoElements;
      }