code: def tearDown(self):
      super().tearDown()
      xb._backend_factories = self._orig_factories
      self._restore_backend_state()
  
imports: import os
  import platform
  import time
  import warnings
  from absl import logging
  from absl.testing import absltest
  from jax._src import compiler
  from jax._src import config
  from jax._src import test_util
  from jax._src import xla_bridge
  from jax._src.interpreters import xla
  from jax._src.lib import xla_client
label_desc: Use image node_id 3 for calling the GetBackendTest obj's underlying member method code with example usage: obj.tearDown() without return types