docs: @Override
      public void accumulateChunk(NDArrayMessageChunk chunk) {
          String id = chunk.getId();
          if (!chunks.containsKey(id)) {
              List<NDArrayMessageChunk> list = new ArrayList<>();
              list.add(chunk);
              chunks.put(id, list);
          } else {
              List<NDArrayMessageChunk> chunkList = chunks.get(id);
              chunkList.add(chunk);
          }
  
          log.debug("Accumulating chunk for id " + chunk.getId());
  
  
      }