code: def test_load_checkpoint_last(self):
      self.test_experiment.load_checkpoint("last")
  
      self.assertEqual(
          self.test_experiment.model.network.state_dict(),
          torch.load(self.last_checkpoint_path, map_location="cpu"),
      )
  
imports: import os
  from tempfile import TemporaryDirectory
  from unittest import TestCase
  import torch
  from torch import nn
  from poutyne import Experiment
  from tests.framework.experiment.utils import ConstantMetric, ConstantMetricCallback
  from tests.framework.tools import SomeDataGeneratorWithLen
label_desc: Use image node_id 5 for calling the BaseExperimentCheckpointLoadingTest obj's underlying member method code with example usage: obj.test_load_checkpoint_last() without return types