code: def __next__(self):
      values = []
      for iterator in self.streamer_iterators:
          try:
              values.append(next(iterator))
          except StopIteration:
              values.append(None)
  
      if None in values:
          raise StopIteration()
  
      return values
  
file_path: serve/ts/handler_utils/hf_batch_streamer.py
imports: from typing import Optional
  from transformers import AutoTokenizer
  from transformers.generation.streamers import BaseStreamer, TextIteratorStreamer
label_desc: Use image node_id 5 for calling the TextIteratorStreamerBatch obj's underlying member method code with example usage: obj.__next__() and returns: values