code: def reset(self):
      self._entropy = 0.0
      self._count = 0
  
file_path: allennlp/allennlp/training/metrics/entropy.py
imports: from typing import Optional
  import torch
  from allennlp.nn.util import dist_reduce_sum
  from allennlp.training.metrics.metric import Metric
label_desc: Use image node_id 4 for calling the Entropy obj's underlying member method code with example usage: obj.reset() without return types