code: def aggregate_preds(self, preds, context):
      preds, question_logits, context_logits = preds
      super().aggregate_preds(preds)
      self.aggregate_data(self.all_question_logits, question_logits)
      self.aggregate_data(self.all_context_logits, context_logits)
  
imports: from enum import Enum
  from typing import Any, Dict, List
  import numpy
  from pytext.common.constants import Stage
  from pytext.metric_reporters.channel import Channel, ConsoleChannel, FileChannel
  from pytext.metric_reporters.metric_reporter import MetricReporter
  from pytext.metrics.dense_retrieval_metrics import DenseRetrievalMetrics
label_desc: Use image node_id 4 for calling the DenseRetrievalMetricReporter obj's underlying member method code with example usage: obj.aggregate_preds(preds, context) without return types