docs: public DBInstance withReadReplicaDBInstanceIdentifiers(String... readReplicaDBInstanceIdentifiers) {
          if (this.readReplicaDBInstanceIdentifiers == null) {
              setReadReplicaDBInstanceIdentifiers(new java.util.ArrayList<String>(readReplicaDBInstanceIdentifiers.length));
          }
          for (String ele : readReplicaDBInstanceIdentifiers) {
              this.readReplicaDBInstanceIdentifiers.add(ele);
          }
          return this;
      }