code: def setUp(self):
      self.backend = self.BackendStub()
      self.backend.internals_directory = "/"
  
file_path: auto-sklearn/test/test_util/test_backend.py
imports: import builtins
  from autosklearn.automl_common.common.utils.backend import Backend
  import unittest
  import unittest.mock
label_desc: Use image node_id 1 for calling the BackendModelsTest obj's underlying member method code with example usage: obj.setUp() without return types