code: public ReplicationDestinationConfig withStorageClass(StorageClass storageClass) {
          setStorageClass(storageClass == null ? (String)null : storageClass.toString());
          return this;
      }
docs: Sets the storage class for the replication destination. If not specified,
  Amazon S3 uses the storage class of the source object to create object replica.
  Returns the updated object.
  
  @return the updated {@link ReplicationDestinationConfig} object