class_docstr: The abstract class representing a metric which can be accumulated at each batch and calculated at the end
  of the epoch.
docstr: The information kept for the computation of the metric is cleaned so that a new epoch can be done.
code: def reset(self) -> None:
      """
      The information kept for the computation of the metric is cleaned so that a new epoch can be done.
      """
      pass
  
file_path: poutyne/poutyne/framework/metrics/base.py
imports: from abc import ABC, abstractmethod
  import torch.nn
label_desc: Use image node_id 4 for calling the Metric obj's underlying member method code with example usage: obj.reset() without return types