code: def setUp(self):
      super().setUp()
      self._before = config.main_thread_config
      config.tls.config = (
          config.main_thread_config
      ) = config.Config.default()
  
imports: from concurrent import futures
  import inspect
  import threading
  from absl.testing import absltest
  from absl.testing import parameterized
  from haiku._src import config
label_desc: Use image node_id 1 for calling the ConfigTest obj's underlying member method code with example usage: obj.setUp() without return types