@Override
  public void trySerializeRemainingResponses() {
    responses.stream()
        .skip(1)
        .filter(response -> Objects.isNull(response.getByteBuffer()))
        .findFirst()
        .ifPresent(response -> SubscriptionPollResponseCache.getInstance().trySerialize(response));
  }
The {@code SubscriptionEventExtendableResponse} class represents a subscription event response
that can dynamically change as new responses are fetched. It maintains a list of {@link
CachedSubscriptionPollResponse} objects and provides methods for managing and serializing these
responses.
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/subscription/event/response/SubscriptionEventExtendableResponse.java