code: def setUp(self):
      torch.manual_seed(2)
  
imports: import unittest
  from unittest.mock import MagicMock, patch
  import torch
  from tests.trainers.test_utils import get_config_with_defaults, get_mmf_trainer
label_desc: Use image node_id 1 for calling the TestEvalLoop obj's underlying member method code with example usage: obj.setUp() without return types