code: def reset(self):
      del self.meters
      self.meters = defaultdict(SmoothedValue)
  
imports: from collections import defaultdict, deque
  import torch
  from mmf.common.registry import registry
  from mmf.utils.distributed import reduce_dict
  from mmf.utils.general import scalarize_dict_values
label_desc: Use image node_id 9 for calling the Meter obj's underlying member method code with example usage: obj.reset() without return types