code: def _reset(self):
      super()._reset()
      self.all_target_length_preds: List = []
      self.all_beam_preds: List[List[str]] = []
      self.all_loss: Dict[str, List] = defaultdict(list)
      self.all_target_lens: List = []
      self.all_target_trees: List = []
  
imports: from collections import defaultdict
  from typing import Dict, List
  import numpy
  import torch
  from pytext.common.constants import BatchContext, DatasetFieldName, Stage
  from pytext.data.tensorizers import Tensorizer
  from pytext.metric_reporters.channel import ConsoleChannel
  from pytext.metric_reporters.seq2seq_compositional import CompositionalSeq2SeqFileChannel, Seq2SeqCompositionalMetricReporter
  from pytext.metric_reporters.seq2seq_metric_reporter import Seq2SeqFileChannel, Seq2SeqMetricReporter
  from pytext.metric_reporters.seq2seq_utils import stringify
  from pytext.metrics import safe_division
  from pytext.metrics.mask_metrics import compute_length_metrics
  from pytext.metrics.seq2seq_metrics import MaskedSeq2SeqTopKMetrics
label_desc: Use image node_id 3 for calling the MaskedSeq2SeqTopKMetricReporter obj's underlying member method code with example usage: obj._reset() without return types