code: def __init__(self, model):
      self._model = model
  
      self._nb_classes = model.num_classes
      self._input_shape = model.input_shape
  
imports: import abc
  import sys
  import numpy
  import torch
label_desc: Use image node_id 1 to create a new PytorchClassifier object  with example: obj = PytorchClassifier(model)