docs: public DescribeReservedCacheNodesResult withReservedCacheNodes(ReservedCacheNode... reservedCacheNodes) {
          if (this.reservedCacheNodes == null) {
              setReservedCacheNodes(new com.amazonaws.internal.SdkInternalList<ReservedCacheNode>(reservedCacheNodes.length));
          }
          for (ReservedCacheNode ele : reservedCacheNodes) {
              this.reservedCacheNodes.add(ele);
          }
          return this;
      }