class_docstr: An observer that collects action norm stats.
code: def __init__(self):
      self._action_norms = None
  
file_path: acme/acme/utils/observers/action_norm.py
imports: from typing import Dict
  from acme.utils.observers import base
  import dm_env
  import numpy
label_desc: Use image node_id 1 to create a new ActionNormObserver object from inherited base classes: base with example: obj = ActionNormObserver()