docs: public CreateReplicationGroupRequest withNodeGroupConfiguration(NodeGroupConfiguration... nodeGroupConfiguration) {
          if (this.nodeGroupConfiguration == null) {
              setNodeGroupConfiguration(new com.amazonaws.internal.SdkInternalList<NodeGroupConfiguration>(nodeGroupConfiguration.length));
          }
          for (NodeGroupConfiguration ele : nodeGroupConfiguration) {
              this.nodeGroupConfiguration.add(ele);
          }
          return this;
      }