docs: public DescribeReservedNodesResult withReservedNodes(ReservedNode... reservedNodes) {
          if (this.reservedNodes == null) {
              setReservedNodes(new com.amazonaws.internal.SdkInternalList<ReservedNode>(reservedNodes.length));
          }
          for (ReservedNode ele : reservedNodes) {
              this.reservedNodes.add(ele);
          }
          return this;
      }