code: def _assert_in_trusted_list(self, line):
      with open(self.trusted_list_path) as f:
          assert line in (l.strip() for l in f.readlines())
  
imports: import unittest
  from unittest.mock import patch
  import os
  import tempfile
  import warnings
  import torch
  import torch.hub
  from torch.testing._internal.common_utils import retry, IS_SANDCASTLE, TestCase
label_desc: Use image node_id 4 for calling the TestHub obj's underlying member method code with example usage: obj._assert_in_trusted_list(line) without return types