code: def update_data(self, data: Any):
      self._last_data.append(data)
      if len(self._last_data) > 2:
          self._last_data = self._last_data[-2:]
  
imports: import json
  import time
  from typing import Any, Dict, List, Union
  import torch
  import bmtrain
  import os
  from cpm_live.arguments import get_args
  from cpm_live.models import CPMBee, CPMBeeConfig
  from cpm_live.tokenizers import CPMBeeTokenizer
  from cpm_live.utils import allgather_objects, LogManager
  from cpm_live.training_tasks.bee import MixedDataset
label_desc: Use image node_id 2 for calling the LossSpikeDetector obj's underlying member method code with example usage: obj.update_data(data) without return types