code: def reset_bucket(self, bucket_id):
      if self.start_time is None:
          self.sum[bucket_id] = 0
          self.n[bucket_id] = 0
          self.count[bucket_id] = 0
  
imports: import argparse
  import ast
  import os
  import signal
  import threading
  import time
  from typing import Dict, List, Optional, Union
  import torch
  from fairseq import distributed_utils, tasks, utils
  from pytorch_translate.file_io import PathManager
label_desc: Use image node_id 5 for calling the BucketStopwatchMeter obj's underlying member method code with example usage: obj.reset_bucket(bucket_id) without return types