docs: public SendMessageBatchRequest withEntries(SendMessageBatchRequestEntry... entries) {
          if (this.entries == null) {
              setEntries(new com.amazonaws.internal.SdkInternalList<SendMessageBatchRequestEntry>(entries.length));
          }
          for (SendMessageBatchRequestEntry ele : entries) {
              this.entries.add(ele);
          }
          return this;
      }