code: def _restore_backend_state(self):
      xb._backends = self._orig_backends
      xb._backend_errors = self._orig_backend_errors
      xb._default_backend = self._orig_default_backend
      xb.get_backend.cache_clear()
  
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 6 for calling the GetBackendTest obj's underlying member method code with example usage: obj._restore_backend_state() without return types