code: def setUp(self):
      super().setUp()
      torch.manual_seed(42)
      self.pytorch_network = nn.Linear(1, 1)
      self.loss_function = nn.MSELoss()
      self.optimizer = torch.optim.Adam(
          self.pytorch_network.parameters(), lr=1e-3
      )
      self.model = Model(
          self.pytorch_network, self.optimizer, self.loss_function
      )
  
file_path: poutyne/tests/framework/callbacks/test_lambda.py
imports: from unittest.mock import Mock, call
  import torch
  import torch.nn
  from poutyne import Callback, LambdaCallback, Model
  from tests.framework.model.base import ModelFittingTestCase
  from tests.framework.tools import some_data_tensor_generator
label_desc: Use image node_id 1 for calling the LambdaTest obj's underlying member method code with example usage: obj.setUp() without return types