Method VectorStreamGroup

bolt/vector/VectorStream.h:312–316

If `serde` is not specified, fallback to the default registered.

 public:
  /// If `serde` is not specified, fallback to the default registered.
  explicit VectorStreamGroup(
      memory::MemoryPool* FOLLY_NONNULL pool,
      VectorSerde* serde = nullptr)
      : StreamArena(pool),
        serde_(serde != nullptr ? serde : getVectorSerde()) {}

  void createStreamTree(
      RowTypePtr type,