code: def __init__(self) -> None:
      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 1 to create a new Entropy object from inherited base classes: Metric with example: obj = Entropy()