docstr: returns classes instead of probabilities
docstr_tok: ["returns","classes","instead","of","probabilities"]
code: def predict_classes(self, x, verbose=0):
      """
      returns classes instead of probabilities
      """
      logits = self.predict(x)
      predicted_class = [torch.argmax(logits).item()]
  
      return predicted_class
  
imports: import abc
  import sys
  import numpy
  import torch
label_desc: Use image node_id 3 for calling the PytorchClassifier obj's underlying member method code with example usage: obj.predict_classes(x, verbose) and returns: predicted_class