code: def register_safe_class(input_class):
      RestrictedUnpickler.register_safe_class(input_class)
  
imports: import builtins
  import collections
  import inspect
  import io
  import logging
  import pickle
  import torch
label_desc: Use image node_id 3 for calling a global function with example usage: register_safe_class(input_class) without return types